12 best hot water recirculating pump

Product description

The Watts Hot Water Recirculating Pump provides hot water at every faucet or shower when needed, eliminating wasted water and saving up to 15,000 gallons per year. It is easy to install on any water system and requires no additional piping. The unique design of the pump ensures quiet, maintenance-free operation. The system includes a built-in 24 hour, a dual setting programmable timer to activate the pump only when needed. Please note this will not work with a tankless water heater.

From the Manufacturer

The Watts Premier hot water recirculation pump puts hot water at every tap when you want it. Saves up to 15,000 gallons per year. The pump brings convenience and savings to your home, giving you hot water instantly at every faucet, when you need it. This unique product is easy to install and not only provides you with the convenience of hot water when you need it, but saves an average of over 11,000 gallons per year. *May not work with a tankless water heater.

• Kit includes a pump with timer with 10' cord, 2 adapters with rubber washers, valve mounting screws, sensor valve, and two 12-inch supply lines
• Voltage: 120 volts, Item Weight: 8.5 pounds. Overall Dimension: 6.2 x 6 x 5 inches
• Provides hot water at every faucet or shower when needed and helps eliminate wasted water
• Easily installs to existing plumbing and is maintenance-free
• 24-hour programmable timer activates pump when you need it

User questions & answers

Question:	How many amps is the pump
Answer:	The pump runs at .22 Amps, and recommended supply current of 2.5 Amps. A standard 15 Amp wall socket is all that you need to plug it into. The .22 Amps the pump indicates maximum start up current, actual running current will be somewhat lower. Inrush current is always higher, when the motor has to start up, actual running current will be lower, example a 1 HP motor will have an inrush current of about 34 Amps, just until the motor reaching normal operating speed then it drops down to around 7.5 Amps, quite a bit lower, but the breaker needs to be able to handle the inrush currents.
Question:	can i used without the sensor valve
Answer:	Yes.As long as you have a return line running back to your water heater. You do not need a separate return line at every faucet. You need one return line. Follow your hot water pipe to the end (last branch takeoff), cut in a tee and run pex or copper. At the bottom of your tank style water heater there is a small, usually plastic valve. Remove that valve and screw in a 3/4" brass or stainless pipe nipple. Then install a tee inline with side outlet looking up and in the end of the tee put a brass drain valve to replace the crappy plastic one if applicable. The side connection on the tee you installed is where you will connect your return line you just ran. I did not notice if this pump had a built in check valve but if not you may want one to prevent water from flowing through both the hot water main and the hot water return to the faucet nearest the end. Water will follow the path of least resistance so the last branch on the main usually ends up being similar in distance to the water heater from either line. As a result water can back feed up the return line and will bring the cold water entering the tank with it. This is especially true when a second source of hot water is being used at the same time hence the need for a check valve.
Question:	If the pump is on, and the water is hot, the sensor valve closes, right? Isn't the pump trying to push water against a totally closed line
Answer:	This type of pump is designed to operate with zero flow, and it actually uses a little less electricity when it is not moving water. When the sensor valve closes, the pump does not move any water. When the sensor valve reopens, the pump moves water from the hot water line into the cold water line.
Question:	So what this does is move the hot water through the pipes constantly, not just when you need it? Seems like an energy suck. Is it
Answer:	If you run this all the time you will likely increase your water heating costs significantly as you are turning your pipes into a big radiant heater. You can use the built in timer to only have it come on at set periods, but this will only work if you have a very fixed schedule. I attacked this another way. I plugged the unit into a TP-Link HS110 Smart plug that is Alexa controlled. I can just say turn on hot water pump or turn off hot water pump when I want to control it. But that was not good enough for me. I found that if this pump ran for four minutes it would give me hot water at the distant shower that I wanted, so I did the following. I wrote a routine to turn on the pump, wait four minutes and then turn it off. While I can run this by voice, I bought the new Amazon Alexa Button, they are about $14 for a two pack. The button is battery operated and communicates to another Alexa device. Just before I take a shower I push the button and within four minutes the water will be hot without having to run water.

Product features

Includes Everything Needed

Pump with timer and 10 ft. electric cord, two adapters with rubber washers, valve mounting screws, sensor valve, two 12 in. supply lines

Easy Installation

Easy to install, usually less than one hour.

Save Money

Save money, up to 10% of your water bill annually.

Product description

Product Details

Model: RS15-6 SS Green

Rated Power: 93/67/46W 

Outlet: 3/4 inch 

Max Flow: 36/29/20L/min

Rated Head: 20/16/13m

Volt/Freq: 110-120V/60Hz



Applications

Used in Suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on



Advantages

1.High efficiency, high flow, leak-tightness, low consumption

2.No noise environmental protection, ease of installation

3.No leakage, low noise, environmental protection, aesthetics, ease of installation and so on

4.Built-in high sensitive electronic sensors with three-speed control



Performance Datas

1) Suitable for medium: Hot water and ethanol maximum ratio of 1:1

2) Performance: Liquid temperature range: 0℉ - +212℉Maximum working pressure 10bar

3) Ambient temperature: not higher than 40

4) Voltage: 110-120V(±10%) ,Frequency: 60Hz.

5) Motor: Protection class IP44 Insulation class F

6) Material: Stainless Steel, PP, ceramics

7) Mounting position: Shaft horizontal mounting

8) Pump settings: Single-phase pipeline pump 3 files manually controlled single-phase motor is not overloaded casting pump length 130 mm

• Rated power: 93/67/46 W. NPT 3/4 inch (19.05 mm) inlet/outlet. Voltage/Frequency: 110-120V, 60Hz. Max pressure: 145 psi (10 bar),the circulation pump with three-speed control. Flow: 36/29/20 LPM (9.5/7.66/5.28 GPM). Max head: 6/4.9/4 m (20/16/13 ft);Pump housing: Aluminum. Impeller: Corrosion-resistant, composite, PES. Shaft: 45 # steel. Bearing: Carbon axia.
• Easy installation, only need a wrench to connect the pump to the pipeline, saving you the cost of plumbers; Instant hot water, waiting for 2-3 minutes in the past, now it takes only 15 seconds to get hot water.
• Prevent pipes from freezing in winter, especially for cold winter areas. In addition, if your pipes pass through the floor, the floor will also become warm.
• The circulation water pump features high efficiency with low consumption. High temperature resistance, anti-fraying, high flow and leak-tightness. Super silent, environmental friendly,saving energy, running power, reducing the waste of cold water and waiting time, suitable for water scarce areas, such as desert areas.
• KOLERFLO circulation water pump RS15-6 Used in Suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on.

User questions & answers

Question:	Are there instructions /operating manual available written in English
Answer:	Nope! It is cartoon drawn images for instructions. Not much to it.
Question:	how is it on electrical consumption
Answer:	The info that came with it says 46 watts at the lowest (of 3) speed settings which is what I use. That's 81 kWh per year, pretty small. the highest speed setting uses 93 watts. I don't notice it on my electric bill but then I have a 3200 SF house (4 bdrm colonial) with air condition in the Northeast. It works great. I used to have cold water and have to wait 1 minute wide open running time to get hot water; now it's instantly warm and hot within 20 seconds. Also, you can put it on a time (or buy one with the timer installed) but I get up often in the middle of the night and like instant warm/hot water.
Question:	Can this recirculate cold water instead of hot water? If i want to use it that way
Answer:	The question of hot water vs cold water pumps is a question about motor cooling. As a general idea, all hot water pumps can pump cold water regardless of manufacturer. This doesn’t hold for cryogenics though. TLDR - yes you can.
Question:	Is the RS15-6 Green okay for potable water systems
Answer:	You'd better try RS15-6 SS Green for potable water system.

Product description

The APCOM circulators are designed to deliver hot water instantly at the point of use (under sink). Water savings can be as great as 12,000 15,000 gallons per year with 4 5 taps in a home. The UT1 circulator together with

• Instantly Experience Hot Water - Enjoy the comfort and convenience of hot water in your home without the wait.
• Energy & Cost Efficient - The most energy efficient circulator on the market that reduces waste and costs associated with the consumption of water.
• Fully Automatic Operation - This under sink recirculation system is controlled with a built-in thermostat and timer to conserve water. The pump typically runs three to four times per hour for one to two minutes.
• One Wrench Installation - Kit includes stainless steel pump, 2 braided hoses, 2 tees and all necessary fittings. Installs under sink in less than 10 minutes. Pump is designed for indoor installation. No plumber required.
• Without Dedicated Return Line - Designed for single pipe system homes without an existing hot water return line and up to 250 ft of household piping. Works with standard hot water tank or indirect water heater. Electrical outlet required under sink.

User questions & answers

Question:	What temperature is a termostat set on? Does a termostat switch a pump on/off
Answer:	cycles 4 times per hour or set the timer
Question:	What size are fittings
Answer:	3/4

Product description

Operating Parameters: Maximum Fluid Temperature: 150 degrees F (66 degrees C). Min. Fluid temperature: 36 degrees F (2 degrees C). Maximum working pressure: 145 PSI.

• CONTENTS: Includes a sensor valve, two 12 in. supply lines with fittings, and two mounting screws
• SPECIFICATIONS: 1/2 inch MPT connections on the Sensor Valve, 12 inch supply lines with 1/2 inch FPT x 3/8 inch FPT connections, and the adapter fittings with 1/2 inch FPT to 3/8 inch MPT
• COMPATIBILITY: The 0955801 Sensor Valve Kit ONLY works in conjunction with Watts Instant Hot Water Recirculating System. It is not designed to be used with a dedicated return line to the water heater
• EASY INSTALLATION: Easy to install with no additional pumps needed. Additional sensor valve for branched hot water lines
• This kit must be used in conjunction with either a 500800 or 500805 Hot water Recirculating Pump. It is NOT designed to be used with a dedicated return line to the water heater

User questions & answers

Question:	will this valve work as an additional valve for a Grundfos 59896288P1 hot water recirculation pump
Answer:	It will work with any recirculating pump.
Question:	Does this valve open and allow warm/hot water to flow to the cold water side when a cold water tap in another part of the house is turned on? I
Answer:	There is slightly increased pressure on the hot line, which pushes water through the hot line and through the crossover valve when it is open, to let the hot line reach temperature at the valve. When a cold faucet is opened, most of the pressure is on the incoming side and that's where the water will come from. At first the cold line will have some of the warm returning water that was circulating through the valve, but very little will come from the downstream side where the valve is. One problem to be aware of is when using a shower head shut-off to soap up or whatever. Because the hot and cold are both open at the mixing valve the slightly higher pressure hot water will travel up the cold line and when the shower head is turned back on you will get hot water from both the hot and cold lines until the cold water gets back down the line to the shower head. It can be dangerously hot, and turning the faucet to cold will hot help until the cold water reaches the faucet. This can be alleviated by turning water off at the faucet instead of at the shower head, leaving a partial flow rather than completely shutting the shower head off, or manually shutting off the pump before showering. But the product should include a warning about shutting off a mixed temperature flow anywhere past the mixing valve.
Question:	Does this shut down the flow completely once temperature is reached or will it continue to trickle water into the cold water line
Answer:	The valve allows a slow flow of water back through the cold water line, enough to maintain the temperature at the faucet at about 100°F. If you let the hot water run, the temperature at the faucet goes over 100°F, and the valve shuts off the back flow through the cold water line. After the faucet is shut off, the water in the valve will cool to below 100°F, and the valve will crack open and allow some flow to keep the water warm. The valve does not bang open and shut. It opens more or less, as needed to keep the water warm at the faucet. It doesn't depend on the temperature set at the water heater, except that if the water is very hot, obviously it takes less to keep the water warm at the faucet. The valve accomplishes this automatically.
Question:	How many years will a recirculating water pump last
Answer:	The pump itself I've probably had for 10 years. I've replaced one of the valves in our master bath.

Product features

Works Seamlessly

The Watts Premier 0955801 Sensor Valve Kit for Watts Hot Water Recirculating Pump comes with a sensor valve, two 12 inch supply lines with fittings and two mounting screws. Simple to install, you will not require additional pumps for your hot water line.

Great to get Hot Water to the Furthest Fixture

Made with top quality materials, this Watts Premier 0955801 Sensor Valve Kit for Watts Hot Water Recirculating Pump serves the purpose when installed accurately.

Product description

Specifications:

Rated Power:93/67/46W

Inlet/Outlet:3/4 inch

Max Flow:36/29/20 L/min(9.5/7.66/5.28GPM)

Rated Head:20/16/13m(65.6/52.5/42.6FT)

Volt/Freq:110-120V/60Hz



Application:

Used in Suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment,air conditioning,boilers,solar circulating water, hot water circulating warm and so on.



Advantages:

No leakage,low noise, environmental protection, aesthetics,ease of installation and so on.



Features:

High temperature resistance, antifraying,long life, maintenance-free,super silent,leak-tightness,high efficiency,low consumption,high flow and convenient installation advantages.



Performance Datas:

1).Suitable for medium: Hot water and ethanol maximum ratio of 1:1.

2).Performance: Liquid temperature range 0 - 212℉(0-100℃);Maximum working pressure 10bar(145PSI).

3).Ambient temperature: not higher than 104℉(40℃)

4).Voltage:110-120V,Frequency: 60Hz.

5).Motor: Protection class IP44 Insulation class F.

6).Material: Cast Iron, PP, ceramics.

7).Mounting position: Shaft horizontal mounting.

8).Pump settings: Single-phase pipeline pump 3-Speed manually controlled single-phase motor is not overloaded casting pump length 130 mm(5.12 Inch).

• 1. Rated Power:93/67/46W;Inlet/Outlet:3/4 inch;Max Flow:36/29/20 L/min(9.5/7.66/5.28GPM); Rated Head:20/16/13m(65.6/52.5/42.6FT)
• 2.Max Working Pressure 10bar(145PSI).Power Cord: 4.1ft. Liquid temperature range: 0℉ - 212℉
• 3.No leakage, low noise, environmental protection, aesthetics, ease of installation and so on.
• 4.Suitable for medium: Hot water and ethanol maximum ratio of 1:1.
• 5.Materials: Pump body: Cast Iron; Impeller: Corrosion-resistant, Composite, PES; Shaft: Ceramic;Bearing: Ceramic.

User questions & answers

Question:	Can I use this pump for hot water?what's the liquid temperature range
Answer:	YES,this circulation pump can be used for hot water.and the temperature must below 212℉。
Question:	Conflicting info in product description. ..."Can be used directly in drinking water pipelines", or "Not suitable for potable water". Which is it
Answer:	It can be used directly in drinking water pipelines.
Question:	Is this pump powerful enough for home use
Answer:	Yes,this hot water circulation pump is very powerful.
Question:	What is the highest temperature it can be used at
Answer:	Below the 212℉.

Product description

PLEASE CONTACT US TO DETERMINE IF THIS PRODUCT WILL WORK FOR YOUR APPLICATION. The Grundfos Comfort System brings both comfort and savings to the retrofit market without the need for a dedicated return line. Now updated with the introduction of the easily programmable digital timer with battery backup, the Comfort System offers more flexibility and reliability to the homeowner. The stainless steel circulator with timer, installed at the water heater, helps pull water back to be heated and recirculated. The thermostatically controlled comfort valve, installed at the farthest fixture from the water heater, helps regulate the flow from hot water line to the cold-water line.The Grundfos Comfort System is the ultimate in comfort and convenience as hot water is instantly available at sinks, appliances and bathroom faucets throughout the household.

• Retrofit solution- no return line required. Compatible with all Grundfos line cord products
• Can save up to 12,000 gallons of year in a typical household
• Includes timer, 10ft line cord, thermal bypass valve and hose kit
• Installs in less than two hours
• Battery back up to maintain settings if power is lost

User questions & answers

Question:	Can you program this to run only on weekends at a certain time of day: like friday 7-10pm, saturday 8am-11am and saturday 7-10pm, then sunday 8am-11am
Answer:	Yes you can. The timer that comes with it is a simple plug in timer - it is not built into the pump itself. But you can program it for different times in different days as it operates just like an in wall light timer.
Question:	Regarding adding additional "T" No access to install under shower without ripping out a wall. Would installing under sink next to shower do the job
Answer:	Yes if the sink and shower have a common cold and hot supply.
Question:	Is it compatible with rheem tank water heater performance uln 75gal model xg75t06en75uo
Answer:	Not water heater specific; goes on the hot water line after it leaves the water heater.
Question:	How many speed settings does this pump have? What is the gpm
Answer:	There are no speed settings. The only control is whether the pump/heater is on or off (controllable from the timer). In looking at the instruction manual that came with it, there is no mention of gallons per minute. The pump keeps your water lines filled with warm water so you can immediately wash your hands or face or start your shower with water at a pleasant temperature. As water arrives from the water heater, the temperature increases. It's a very agreeable and low cost solution to situations where the water heater is far from bathrooms or kitchen.

Product description

3/4 inch Hot Water Circulation Pump RS15-6 Hot Water Circulating Pump Red Three Speed Water Circulation Pump

The listing is about Hot Water Circulation Pump 3/4 inch RS15-6 3-speed circulating pump. Brand new with top quality, you can rest assured to buy.

Superiority

1. Built-in high sensitive electronic sensors with three-speed control.

2. High efficiency with low consumption. High temperature resistance, anti-fraying, high flow and leak-tightness.

3. Super silent, environmental friendly, aesthetics, easy to install and operate.

Application

Our hot water circulation pump RS15-6 is suitable for a wide range of applications, for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on.

Feature:

Hot water circulation pump RS15-6

Three speed motor

Longer life and better performance

Super silent and environmental friendly

Easy to install and operate

Suitable for a wide range of applications

Specification:

Color: Red

Model: RS15-6

Materials

Pump housing: Aluminum

Impeller: Corrosion-resistant, composite, PES

Shaft: 45 # steel

Bearing: Carbon axial

Voltage/Frequency: 110-120V, 60Hz

Rated power: 93/67/46 W

Max pressure: 145 psi (10 bar)

Flow: 36/29/20 LPM (9.5/7.66/5.28 GPM)

Max head: 6/4.9/4 m (20/16/13 ft)

Inlet/Outlet: NPT 3/4 inch (19.05 mm)

Liquid temperature range: 0-100ºC (0-212ºF)

Max ambient temperature: 40ºC (104ºF)

Package size: 15x15x14 cm (6x6x5.5 inch)

Gross weight: 2.5 kg (5.51 lbs)

Package Content:

1 x Hot Water Circulation Pump

2 x Coupling

2 x Seal

1 x Product Manual

• 【MAIN PARAMETER】 - The hot water circulation pump features NPT 3/4 inch (19.05 mm) inlet/outlet. Voltage/Frequency: 110-120V, 60Hz. Rated power: 93/67/46 W. Max pressure: 145 psi (10 bar),the hot water circulation pump with three-speed control. Flow: 36/29/20 LPM (9.5/7.66/5.28 GPM). Max head: 6/4.9/4 m (20/16/13 ft);Pump housing: Aluminum. Impeller: Corrosion-resistant, composite, PES. Shaft: 45 # steel. Bearing: Carbon axia
• 【CONVENIENT】 - Easy installation, just need a wrench to connect the pump to the pipeline, saving you the cost of plumbers; Instant hot water, waiting for 2-3 minutes in the past, now it takes only 15 seconds to get hot water (the kitchen takes about 1 minute to get hot water due to low flow restriction)
• 【HUMANIZED DESIGN】 -Prevent pipes from freezing in winter, especially for cold winter areas. In addition, if your pipes pass through the floor, the floor will also become warm.
• 【ADVANTAGE】 - The hot water circulation pump features high efficiency with low consumption. High temperature resistance, anti-fraying, high flow and leak-tightness. Super silent, environmental friendly,saving energy, running power, reducing the waste of cold water and waiting time, suitable for water scarce areas, such as desert areas
• 【WIDE APPLICATION】 - Our hot water circulation pump RS15-6 is suitable for a wide range of applications, for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on

User questions & answers

Question:	Is there a wiring diagram
Answer:	No you just plug it up
Question:	Having a hard time getting this pump to work. It’s not pumping. I tried filling it with water to prime but still nothing. Any tricks
Answer:	Put on 3. Should work, very quiet may be running
Question:	Can I hook up a thermostat to control it
Answer:	If you buy a thermostat that has an outlet on it you wired up like that you got a bug up the 110 V normal outlet plug
Question:	What is the purpose of the exhaust screw
Answer:	it is to bleed the air off if necessary

Product features

High-Quality Material

The booster pump is constructed of durable with aluminum pump housing and iron pump head.

Boost Water Flow

Powerful flow with 5.28/7.66/9.5 GPM and the highest head can reach 13/16/20 ft. More convenient and efficient to use water.

3-Speed Circulating

The water circulation pump is a solar pump with a 3-speed circulating switch.

Keep Quiet To Work

This pressure booster pump boasts a powerful motor for stable performance and low noise.

Easy To Installation

The booster pump is easy to install for appliances and industrial equipment such as air conditioning and water heater for powerful flow.

Wide Application

The water pressure pump city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm, and so on.

Water Pressure Booster Pump

The listing is about Water Circulation Pump RS15-6, solar pump, 3-speed circulating pump. The water booster pump is built-in high sensitive electronic sensors with three-speed control. It is suitable for a wide range of applications, for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm, and so on.

Product description

Watts Premier WP367010 Sensor Valve is for use as a replacement Sensor Valve for the Watts Sensor Valve Kit (0955801) or Instant Hot Water Recirculation Pump (0955800). This valve requires the installation of an existing sensor valve and a Watts Instant Hot Water Recirculation Pump, which delivers hot water instantly to faucets and showers. Replace the existing sensor valve with this sensor valve where it is installed at the end of the branched furthest from the water heater in each hot water loop. No additional pumps are needed. This valve is NOT designed to be used with a dedicated return line to the water heater. Supply lines and adapters not included.

• For use as a replacement Sensor Valve for the Watts Sensor Valve Kit or Instant Hot Water Recirculation Pump.
• Requires the installation of an existing sensor valve and a Watts Instant Hot Water Recirculation Pump (Does not include Sensor Valve Components).
• Increases speed of water recirculation
• Easy to install as replacement with no additional components needed
• Do NOT use thread sealant tape or pipe dope on the Sensor Valve threads

User questions & answers

Question:	When we turn the hot water on is this valve suppose to click for a few moments before it goes silent
Answer:	I have not had that happen. If you have had this for a while and have hard water, the valve may need to be cleaned; Cleaning is fairly simple with help from Google. "CLean Watts Valve" That said, if you are getting hot water maybe leave it alone.
Question:	Is the grundfos 595926 a replacement for the watts wpwp367010 sensor
Answer:	Grundfos is our supplier, for the hot water sensor valves. This is the same product, if you look at the photo it will show our Watts logo. I hope this is helpful.
Question:	Can the sensor valve be cleaned
Answer:	I can give an answer of a qualified "yes". I bought the Watts system (pump & valve) in January 2017. In November 2019, so just under three years, the valve stopped working; it stayed closed, and would not open, so whether the pump was running or not, we did not have hot water in a short time as expected. I ordered a replacement valve from Amazon and after it was installed, the system was working again. I wasn't able to figure out how to dismantle the valve as mentioned by another reviewer, and tried CLR briefly but decided to just use vinegar. After I immersed the faulty valve in vinegar (5% acetic acid) for six to eight weeks, I was pleasantly surprised that the original valve had apparently come back to life! Now the valve is open when at room temperature, and is closed after running hot water (105° or so) through it for a few seconds. You can test a valve by plugging the outlet for the hot water tap with your finger and blowing into the "hot" end of the valve. Listen for air to exit the "cold" side of the valve when the valve is cool, no air exiting when the valve has been warmed up. I won't know for sure if this original valve will function until my replacement fails and I reinstall the original valve, but I have reason to be optimistic that I won't have to buy a new valve every two to three years. The valve I purchased from Amazon seems to work exactly as well as the original product. I rate it at four stars to acknowledge that if people have not yet purchased a system, they may want to look for a model that is more robust than the Watts product.
Question:	Scalding water on cold side. Is this a symptom of failure
Answer:	Yes, if the water is scalding, that's not supposed to happen. The valve should maintain the hot water at the faucet at about 100°F, which is comfortably warm, not scalding. Of course, when you let the hot water run, it will get hotter from there. It is true that in normal operation, there will be some warm water in the cold water supply, but cooler than 100°F, not scalding. If you get scalding water in the cold water from the faucet, something is wrong. Could be the valve, could be the installation. If it's worked in the past, then probably the valve has failed. If you just installed it, probably the installation is wrong. Here by "scalding," I mean too hot to put your hand into.

Product description

Product Details



Model: RS15-9 Red



Rated Power:120W



Voltage: 110-120V(±10%)



Frequency: 60Hz



Outlet: NPT 3/4 inch



Max Flow: 30L/min（8GPM）



Rated Head: 9m（25.9Ft）



Volt/Freq: 110-120V/60Hz



Pressure: 1bar(14.5PSI)



Length of cable: 1.25m(4.1FT)



Performance: Liquid temperature range 0 - 100℃(0-212℉)



Maximum working pressure: 10bar(145PSI)



Ambient temperature: not higher than 40℃(104℉)





Applications



Used in Suitable for city buildings, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on





Advantages



1.High efficiency, high flow, leak-tightness, low consumption

2.No noise environmental protection, ease of installation

3.No leakage, low noise, environmental protection, aesthetics, ease of installation and so on

4.Built-in high sensitive electronic sensors with three-speed control,the pump will start automatically when you turn on the faucet.



Performance Datas



1) Suitable for medium: Hot water and ethanol maximum ratio of 1:1

2)The threads for this pump is NPT 3/4 inch,we suggest you’d better wrap some tapes around it.in case of leaking.

3) Motor: Protection class IP44 Insulation class F

4) Material: Stainless Steel, PP, ceramics

5) Mounting position: Shaft horizontal mounting.

6) Pump settings: Single-phase pipeline pump 3 files manually controlled single-phase motor is not overloaded casting pump length 160 mm.



Pay Attention



This pump itself does not provide pressure, the water pipe itself needs a certain pressure when used



Please use it with thread seal tape when installing

• 1.Rated Power: 120W; Max flow: 30L/min; Rated Head: 25.9FT; Liquid Temperature range -10-+110℃; Voltage: 110V/120V, Frequency: 60Hz; Inlet/Outlet: 3/4 inch;Power Cord: 4.1ft.
• 2.No leakage,low noise,environmental protection,aesthetics,ease of installation and so on.
• 3.Liquid temperature range -0℉ - 212℉ ; Maximum working pressure 10bar.
• 4.120W Powerful motor, the Most powerful Type of this boost pump. It Can be used with water heater or hot water pressurization system, but not for potable water system.
• 5.High temperature resistance, anti-fraying ,high efficiency, high flow.

User questions & answers

Question:	can this be used on a hot tub
Answer:	No you have to connect from water heater
Question:	Can this work with zero flow
Answer:	No, it needs a certain amount of traffic to run
Question:	should the water flow necessarily follow the direction of the arrow
Answer:	Yes,you should flow the arrow.
Question:	what country is it from
Answer:	This pump is made in China.

Product description

About The Product



A heating circulation pump is used to speed up the heating process and circulation of domestic water. A circulation pump can be fitted to a hot water tank, manifold, swimming pool heating side, sidearm heat exchanger, and other parts of the heating system to help circulate the water in the house. Our product comes with three speed options, allowing you to regulate the output to precisely match the requirement of the application. Our product, featuring a self-lubricating wet rotor design, operates whisper-quiet and maintenance-free. This listing is for the pump (with gaskets), flanges and bolts are included.





Working Condition:

Rated at 115V 60Hz single phase AC

Pressure of system < 1.0MPa

Pressure of water inlet > 0.1 MPa

Pumped liquid shouldn't include solid impurities exceeding 0.2mm

For indoor use only

Not for submersible use

Do not run pump dry

Use copper conductors only

Do not install the motor part above or below the pump body





Specifications

Model: GPD15-6SF

Phase: 1

Capacitance: 10µF

Voltage: 115 (60Hz)

Input Power (High/Med./Low; Watts): 120 / 78 / 57

Rated Current (High/Med./Low; Amps.): 0.9 / 0.7 / 0.5

Head Range: 0 - 18.7'

Maximum Temperature: 230F

Maximum Pressure: 145psi

Port Size: 1 1/2" NPT

Materials: Cast Iron

Dimensions, Weight: 4.6" x 6" x 6.6", 6.6 lb





Applications

Residential and Commercial Applications

Hydronic Radiant Heating

Domestic Water Heating

Forced Air Heating

Floor Heating

Snow Melting

Solar Hot Water Heating

Plumbing

• 【Premium Quality】Our hot water circulating pump is switchable at 120/78/57 watts, features high efficiency with low consumption. High temperature resistance, anti-corrosion, anti-fraying, high flow and no leakage. Super silent and environmental friendly.
• 【Convenient For Use】Install in less than 1 hour, just need a wrench to connect the pump to the existing plumbing and is maintenance-free. 1 1/2" FPT internal threaded flanges are included makes it easier for installation.
• 【Main Parameter】 This water circulation pump features NPT 1 Inch (25.39 mm) inlet/outlet. Voltage/Frequency: 110-120V, 60Hz. Input Power (High/Med./Low; Watts): 120 / 78 / 57. Max pressure: 145 psi (10 bar), Flow: 68 LPM (18 GPM). Head Range: 0 - 23.6"';
• 【Multiple Application】 WiseWater water circulator pump is suitable for a wide range of applications on residential and commercial hydronic radiant heating and plumbing, air conditioning, boilers, solar circulating water, hot water circulating warm and so on
• 【100% Satisfaction Rate】We provide 100% satisfaction service as well as good quality product. Please contact us freely if you have any questions about out product or service.

User questions & answers

Question:	Where is this pump made
Answer:	Hi, My Friend It is made in China
Question:	My pump is not working right. Do i just return it or can i get though to someone who cam help
Answer:	ALFA HEATING HAS CONTACT PHONE # AND EMAIL ADDRESS ON AMAZON ORDER PAGE. SHOULD BE EASY TO RETURN TO AMAZON. I HAVE TWO OF THESE AND THEY WORK GREAT FOR ME. NOT SURE WHAT KIND OF PROBLEM YOUR HAVING.
Question:	Where does my brown wire go? 1c2? Where does my blue wire go
Answer:	This pump has a plug on it' you plug it in to a wall or a cord.
Question:	What is the wiring diagram for gpd 15-6sf circulation pump
Answer:	There are various depending on how it is controlled. Diagram with the pump

Product features

Specifications

Input Power (High/Med./Low; Watts): 120 / 78 / 57

Rated Current (High/Med./Low; Amps.): 0.9 / 0.7 / 0.5

Head Range: 0 - 23.6'

Maximum Temperature: 230F

Maximum Pressure: 145psi

Working Condition

Pumped liquid shouldn't include solid impurities exceeding 0.2mm

For indoor use only

Not for submersible use

Do not run pump dry

Use copper conductors only

Do not install the motor part above or below the pump body

Pressure

Rated at 115V 60Hz single phase AC

Pressure of system < 1.0MPa

Pressure of water inlet > 0.1 MPa

Product description

G&W 150W 110V Recirculating Booster Pump Domestic Hot Water cast iron with 3/4" to 1/2" adapters 35ft Head 7GPM Used for city buildings, Great for Solar Heaters, suburban villas, houses, water and pressurized with industrial equipment, air conditioning, boilers, solar circulating water, hot water circulating warm and so on. This unit has a 3 position switch, position auto will turn on the pump when the flow sensor senses flow, so when you open a faucet or an appliance is used, the pump will automatically turn on to increase water pressure. Manual position will keep the pump running or if you want to control the pump with another device as a temperature control then you can use the manual switch position and control the pump with your device. the other switch position just will turn off the pump. This unit can also be used as a circulating pump for centralized hot water systems where you need to circulate hot water to have instant hot water at the point of use.

• G&W 150W 110V Recirculating Booster Pump Domestic Hot Water cast iron with 3/4" to 1/2" adapters 35ft Head 7GPM

User questions & answers

Question:	Does this pump require a check valve kit to be installed at the sink furthest away from the system
Answer:	No, it doesn't need
Question:	How many psi does this put out
Answer:	12 psi

Product description

APCOM

• Instantly Experience Hot Water - This recirculation system provides instant hot water to any water source. Enjoy the comfort and convenience of hot water in your home without the wait.
• Energy & Cost Efficient - The most energy efficient circulator on the market that reduces waste and costs associated with the consumption of water.
• Fully Automatic Operation - This system uses a built-in programmable timer that helps to save time, money and energy.
• Simple DIY Installation - Kit includes stainless steel pump with built-in programmable timer, braided hose, stainless/brass bypass valve, tee and all necessary fittings. Pump installs at the water heater and large bypass valve installs under the sink on the cold water line. Pump is designed for indoor installation.
• Without Dedicated Return Line - Perfect for homes without a dedicated return line or electrical connection under your sink. Professional installation recommended by a local certified plumbing contractor if the water line needs to be cut for pump installation. Designed for tankless water heaters.