12 best intermatic water heaters

Intermatic is a well-known manufacturer of timer switches and related electrical products, including timer switches for water heaters. These timer switches are designed to provide control and automation for electric water heaters, helping users save energy and money by scheduling the heating of water during specific times of the day or night. Here are some key features and information about Intermatic water heater timer switches:

Energy Efficiency: Intermatic water heater timer switches are used to improve energy efficiency in homes and businesses. By programming the timer to activate the water heater only when hot water is needed, users can reduce energy consumption and lower utility bills.
Installation: These timer switches are typically installed near the water heater and are wired into the electrical circuit that powers the heater. Installation should be performed by a qualified electrician or knowledgeable DIYer to ensure proper functioning and safety.
Programming: Intermatic timer switches are designed to be easy to program. Users can set specific on/off schedules based on their hot water usage patterns. For example, the timer can be set to turn the water heater on during peak demand times, such as mornings and evenings, and turn it off during periods of low demand, like overnight.
Models: Intermatic offers a range of timer switch models to suit different needs. Some models may have digital displays for easy scheduling and monitoring, while others may have mechanical dials.
Manual Override: Many Intermatic water heater timer switches include a manual override option, allowing users to temporarily turn on the water heater outside of the programmed schedule if needed.
Compatibility: It's important to ensure that the Intermatic timer switch you choose is compatible with the specific type and size of your electric water heater. Different water heaters may have varying electrical requirements.
Longevity: Intermatic is known for producing durable and reliable timer switches. Their products are built to withstand the demands of daily use and can provide years of trouble-free operation.
Safety: Proper installation and usage of timer switches are essential for safety.Users should follow all manufacturer instructions and local electrical codes to ensure the safe operation of their water heater timer.

Overall, Intermatic water heater timer switches are valuable tools for managing the energy consumption of electric water heaters. By allowing users to schedule heating times efficiently, they can help reduce energy waste and contribute to cost savings. As with any electrical product, it's crucial to follow installation and usage guidelines to ensure safe and effective operation.

Below you can find our editor's choice of the best intermatic water heaters on the market

Intermatic WH40 Electric Water Heater Timer, Gray, 7.75 x 5 x 3 inches

Intermatic

Based on 1 reviews Check latest price

Product description

STEEL MATERIAL; 5-1/8 INCH WIDTH X 3-7/16 INCH DEPTH X 7-7/8 INCH HEIGHT SIZE; 1 HOUR MIN. OFF TIME; 1 HOUR MIN. ON TIME; UL (CANADA AND US), CSA (CANADA AND US) APPROVAL

From the Manufacturer

This Intermatic "Little Gray Box" electric water heater timer will provide up to 26% savings for your electric water heater. To maximize the savings, the timer should be used to operate one hour in the morning and two hours in the evening, set to turn "ON" one hour in advance of the usage periods. The trippers may be set from 1 to 23 hours. Three sets of trippers are included. It also provides a convenient external override switch. It is easy to use.

Easy to use
Convenient external override switch
10,000 watts, 40 amps, 250 volts, 60Hz capacity
Steel case for durability
Trippers can be set in the morning and evening when you need and use hot water

Intermatic P1121 Heavy Duty Outdoor Timer 15 Amp/1 HP for Pumps, Aerators, Heaters, Holiday Decorations and Landscape Lighting

Intermatic

Based on 1 reviews Check latest price

Product description

Applications - Pumps - Water Fountains - Aerators - Landscape and Holiday Lighting - Engine Block Heaters Features - 2 ON/OFF settings per day with removable trippers, more ON/OFF events with addition of extra trippers - Minimum 30-min ON/OFF time - Built into outdoor rated enclosure with clear or black flip cover - Grounded standard or twist-lock style NEMA plug and receptacle - Plugs directly into wall outlet The P1121 is an outdoor mechanical plug-in timer with built-in enclosure. The timer is specifically designed to control outdoor decorations and holiday lighting, but it can also be used to control the filter pump of an above ground pool. This 120-Volt timer has a manual override ON/OFF switch, a waterproof cover and a 12-Inch grounded cord. From the ManufacturerThe P1121 Heavy Duty Outdoor Timer is specifically designed to control outdoor decorations and holiday lighting, but it can also be used to the filter pump of an above ground pool. This 120-Volt timer has a manual override ON/OFF switch, a waterproof cover and a 12-Inch grounded cord.Application Compatibilities: Incandescent

From the Manufacturer

The P1121 Heavy Duty Outdoor Timer is specifically designed to control outdoor decorations and holiday lighting, but it can also be used to the filter pump of an above ground pool. This 120-Volt timer has a manual override ON/OFF switch, a waterproof cover and a 12-Inch grounded cord.

Designed specifically for outdoor applications, dynamic weather conditions and ease of use
Controls pool pumps, water fountains, yard/patio/landscape/holiday/LED/CFL lighting, signs, fans, engine block heaters, heavy duty appliances and more
To use, insert a green pin for the start time and a red pin for the end time
Ships with 2 sets of pins for 2 ON/OFF settings per day, and a grounded 3-prong plug and receptacle
Ratings: 15 A, 1, 800 W, 120 V, 60Hz - CSA Certified, 1 Year
Has a manual override ON/OFF switch, a waterproof cover and a 12-Inch grounded cord

User questions & answers

Question:	Is there a ground stake that comes with it
Answer:	15 Amps at 110 Volts AC is 1,650 Watts. That would be the absolute most it could handle. If your pool pump is over 1500 Watts you may be better off with a larger timer (in case of voltage spikes and sags). If your pool pump is less than 1000 Watts it should run for years (mine has).
Question:	Can you put a longer power cord on it
Answer:	P1131 is rated for 1 HP
Question:	will this control landscape lighting and what wattage
Answer:	Its a set it and forget it timer. The same as you might use in your house for a lamp or christmas lights. It turns on and off at the same time every day.
Question:	How does this product work? Does my pool pump cord plug directly into the timer and the timer into my gfci
Answer:	The cord is approximately 18" long and yes it is a single twist lock. Mine was mounted on my house right beside the electrical outlet and the pump plugs in to it there.

Product features

P1121 Outdoor Mechanical Plug-In Timer with Built-In Enclosure

These plug-in timers are grounded and utilize a flip-open enclosure rated for outdoor use. Great for providing timer function to pumps, landscaping or holiday lighting.

• 2 On/2 Off settings per day with removable trippers, more On/Off events with addition of extra trippers

•Minimum 30-min On/Off time

•Built into outdoor rated enclosure with clear or black flip cover

•Grounded standard or locking type style NEMA plug and receptacle

•Plugs directly into wall outlet

Intermatic WHAVQ7 7-Day Auto-Voltage Electric Water Heater Timer with Battery Backup, Color

Intermatic

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Product description

The whavq series water heater timers are designed for control of residential or commercial water heaters up to 10,000 watts capacity running at 240 vac. The unit is mounted in a UL type 3R outdoor enclosure and can be placed in basements or mechanical rooms. These unts are designed to save energy and maximize electric heated hot water usage throughout the day. 1-Year limited warranty.

Auto voltage selection 120-277 VAC and 40 amp rating
Captive trippers cannot be lost
Three-way on/off/auto manual override
Power and status LED indicators
Self-recharging battery backup with 7-day carryover

Intermatic T104 Electromechanical Timer, 208-277 V, 40 A, 1-23 Hr, 1-12 Cycles Per Day, Gray

Intermatic

Based on 2 reviews Check latest price

Product description

Designed for industrial, commercial and residential applications. The Heavy Duty 40 Amp 208/277 Volt Timer has the highest horsepower ratings in the industry for loads up to 40 amps resistive from 208/277 volts providing direct 24 hour time switch control. This series provides from 1 to 12 "ON/OFF" operations daily with minimum ON/OFF times of 1 hour. This products comes with the timer mechanism, metal case and one "On" and one "Off" tripper.

From the Manufacturer

Designed for industrial, commercial and residential applications. Highest HP ratings in the industry for loads up to 40 amps, providing direct 24 hour control of most loads. Provides 1 to 12 "On/Off" operations each day with minimum On/Off times of 1 hour. All models equipped with one "On" and one "Off" tripper.

Note : Not rated or recommended for outdoor installation

Intermatic 156T1978A Time Switch Trippers for T100 Series Timers 2 On 2 Off With 4 Screws Per Package (2 Pack)

Intermatic

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Product description

Intermatic 156T1978A Time Switch Tripper Kit, 2-pack. Two 156T1978A kits included, with each kit containing: 2 Gold, 1 Silver, and 1 Turquoise Tripper and 4 set screws (for a total of 8 trippers and 8 set screws). For T100 Series: Use 1 green ON tripper and 1 gold OFF tripper. For all other models: Use 1 silver ON tripper and 1 gold OFF tripper.

Intermatic 156T1978A Time Switch Tripper Kit, 2-pk.
Two 156T1978A kits included, with each kit containing: 2 Gold, 1 Silver, and 1 Turquoise Tripper and 4 set screws (for a total of 8 trippers and 8 set screws).
For T100 Series: Use 1 green ON tripper and 1 gold OFF tripper.
For all other models: Use 1 silver ON tripper and 1 gold OFF tripper.
Made by Intermatic.

User questions & answers

Question:	Will these work for T20014R timer
Answer:	intermatic panels typically use the t100 or t104 timer mechanism, these are universal for those timers
Question:	is on the same as off except the etching? can you use two ons on the same timer..one as on and one as off
Answer:	I suggest you look closely at which model of the timer they have and only get the specific ones that are called for >
Question:	What size are these screws
Answer:	Not sure of the size . But they are listed to fit all intermatic times and worked on mine
Question:	Want to make sure I understand replacement. I will use the green and gold for pool timer. Which color is to turn on and which color to turn off
Answer:	The timer switches are etched with "ON" on the green switches and "OFF" on the gold switches.

Intermatic ET8215C 7-Day 30-Amps 2XSPST OR DPST Electronic Astronomic Time Switch, Clock Voltage 120-Volt-277-Volt NEMA 1, 2-Circuit/30-Amp, Gray

Intermatic

Based on 195 reviews Check latest price

Product description

7 DAY ASTRONOMIC TYPE; STEEL ENCLOSURE MATERIAL; 5 INCH W X 3 INCH D X 7-3/4 INCH H SIZE; GRAY FINISH; 28 MAX. NUMBER OF OPERATIONS; CSA (CANADA AND US) APPROVAL

From the Manufacturer

This 7-Day Astronomic Time Switch (Tracks Sunrise and Sunset) Independent 7-day programming provides flexibility for applications where load switching differs each day of the week. contacts that can be field configured to act as two independently operated SPST, one simultaneous operated DPST, or independently pulsed SPST for contactor and bell ringing applications. 2 Circuits, 30-Amps Rating. NEMA 1 Enclosure. Multi-volt operation from 120-277 VAC, 50/60 Hz.

Automatically switches loads according to a preset weekly schedule
Multi-volt operation from 120-277 VAC, 50/60 Hz
To-the-minute programming for accurate load control and reduced energy costs
Astronomic feature provides sunset ON and sunrise OFF settings to eliminate the need for separate photo control devices
Astronomic programming can be combined with independent programs to provide a sunset ON and timed OFF program

Product features

Precise Control and Long-Lasting Performance

This series offers an easy way to upgrade from a basic mechanical time switch to an electronic time switch. These timers will allow for up-to-the-minute programming, battery backup for power loss, up to 28 events total, and automatic daylight saving time corrections without the need of user interaction.

Intermatic EI200W Electronic Auto-Off Timer 5/10/15/30 Minutes, White

Intermatic

Based on 28 reviews Check latest price

Product description

AUTOMATIC SHUT-OFF TYPE; 1-11/16 INCH W X 1-7/16 INCH D X 4-1/8 INCH H SIZE; WHITE FINISH; UL (CANADA AND US) APPROVAL

From the Manufacturer

The EI200W Countdown Timers provide silent operation in time ranges from 5/10/15/30 minutes. Perfect for energy savings, security, and convenience. Applications include indoor lighting, outdoor lighting, self storage units, porch lights, bathroom fans, exhaust fans, ventilation fans, etc. White color.

This electronic countdown timer with preset times is installed in-wall to provide silent control of all types of CFLs, LED lamps and fans
Single button operation, allows the user to push a single button and select between countdown times, no programming required
Auto-off/Countdown times include 5, 10, 15, and 30 minutes
Requires a neutral wire for installation
Replaces single-pole switches, for use with decorator-style wall plate (NOT included)

Intermatic 24 Hour Dial Timer

Intermatic

Based on 25 reviews Check latest price

Product description

24 Hour Dial Timer

Intermatic ET1125C 24-Hour 30-Amp Electronic Time Switch, 120-277 VAC, NEMA 1, 2-Circuit/30-Amp Rating

Intermatic

Based on 265 reviews Check latest price

Product description

Selector switch to determine input voltage between 120-277 VAC, 50/60 Hz
Up to 28 events total
To-the-minute accuracy
Temporary override or permanent manual override
Automatic Daylight Saving Time adjustment

Product features

Take Command of Complex Lighting Systems

Intermatic T101P3 Time Switch, Gray

Intermatic

Based on 61 reviews Check latest price

Product description

Heavy-duty mechanical time switches control a single load

From the Manufacturer

These heavy-duty Mechanical Time Switches are designed for commercial, industrial and residential applications and have the highest motor load ratings in the industry. They provide up to 12 ON/OFF operations each day with a minimum ON/OFF time of 1 hour. All models are equipped with ON and OFF trippers and are available in either plastic or metal indoor/outdoor enclosure. Heater Protection Circuit: 10-Amps, 240-Volt max.

Highest motor load ratings in the industry
12 ON/OFF operations per day
One ON and one OFF tripper included
Available with pool heater protection
Teeter-type terminals for multiple load connections

Intermatic HB880R 15-Amp Outdoor Digital Timer for Control of Lights, Decorations, Pumps or Fans with Astronomic Self Adjust

Intermatic

Based on 522 reviews Check latest price

Product description

7 DAY ASTRONOMIC TYPE; 5-1/6 INCH W X 1-7/8 INCH D X 5-3/8 INCH H SIZE; 14 MAX. NUMBER OF OPERATIONS; UL (CANADA AND US) APPROVAL; OUTDOOR APPLICATION; 120 VAC AT 60 HZ VOLTAGE RATING

Full feature plug-in timer provides 7-day programming in a weatherproof enclosure, with a total of 14 ON/OFF events
Astronomic setting enables timer to automatically adjust event schedules in relation to the changing sunrise/sunset times for maximum efficiency
Plugs directly into wall outlet with 24” cable and provides 2 timed and grounded and plug configurations is 5-15
Common usage includes control of LED and CFL lights, irrigation pumps, engine block heater, aerator
Random setting can be used with security lighting to provide a lived-in appearance. Note : Refer to the PDF attached below in Technical Specification for User Manual.

User questions & answers

Question:	can it control 2 different items at 2 different times, eg. lights at nite and pond water fall during the day
Answer:	Yes, it can be set for different settings for specific days. has ability to set up to 7 different on/off pairs of settings. You can choose what days you want what settings used for. Its not the most intuitive programing I have ever used but once you understand the procedure it works well. Only problem I have run into is that I wish I had gotten a timer with a cover as I have had problems with toddlers playing with the exposed buttons and resetting things on me.
Question:	Can the 2 recepticles be timed differently? One for 16 daytime hours for lights in my greehouse and the other for 8 nighttime hours for the heater
Answer:	If you buy two on them, you can set the minimum for whatever minimum you desire since they have their own battery power.
Question:	Can you set it for different hours on different days and skip some days
Answer:	Hello Lou 1234, thank you for your question. This item geared more towards lighting products, not for pool pumps. If you have any further questions, please give us a call between the hours of 7 AM – 8 PM Central Standard Time, Monday thru Friday at 1-800-654-8483, press option 2.
Question:	What is the shortest duration the timer can be set for
Answer:	Hello selami tekiroglu, thank you for your question. No, we do not have this with an Australian plug.

Intermatic ET1705C Time Switch, Gray

Intermatic

Based on 54 reviews Check latest price

Product description

From the Manufacturer

Upgrading to an electronic time switch has never been easier than now with the new ET1705C. Features include; Automatic Daylight Saving Time adjustment, multi-volt operation from 120 to 277 VAC, and to-the-minute programming for accurate load control and reduced energy costs. Up to 28 set points or events (14 ON/14 OFF per channel) can be distributed throughout the days of the week. The program can be overridden at any time. Two industrial grade "AAA" Alkaline batteries provide 3 years minimum program and timing protection.

Selector switch to determine input voltage between 120-277 VAC, 50/60 Hz
Up to 28 events total
To-the-minute accuracy
Temporary override or permanent manual override
Automatic Daylight Saving Time adjustment
Perfect for use with interior lighting, exterior lighting, electric pumps, electric motor control and more!