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  • Intermatic EH40 240-Volt Electronic Water Heater Timer
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Intermatic EH40 240-Volt Electronic Water Heater Timer

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List Price: $83.68
Price: $75.78 & FREE Shipping. Details
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240V 7,200 Watts
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  • Switch DPST, 240-Volt AC, 7200-Watt
  • These time switches provide automatic control for electric water heaters
  • They provide to-the-minute accuracy in programming and time keeping
  • The time switches can be set to operate for up to 6 ON/OFF operations daily for a maximum of 42 ON/OFF operations weekly
  • provide a convenient external override switch and LED load indicator for ease in scheduling hot water as required for extra hot water demands
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$75.78 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Intermatic EH40 240-Volt Electronic Water Heater Timer + Water Heater Blanket Insulation, "NON FIBERGLASS", Fits up to 80 Gallons, Energy Star Certified, Satisfaction Guaranteed
Price for both: $130.33

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Style: 240V 7,200 Watts
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Product Description

Style: 240V 7,200 Watts

Product Description

  • Brand: Intermatic
  • -
  • Part No.: EH40
  • -
  • Wattage: 7200 Watt
  • -
  • Voltage: 240
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  • Amperage: 30.0 Amps per Pole
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  • Battery Backup: AA Alkaline
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  • Operations: Up to 42 On/Off Weekly
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From the Manufacturer

These time switches provide automatic control for electric water heaters. They provide to-the-minute accuracy in programming and time keeping. The time switches can be programmed for repeat daily scheduling, 5-day working week scheduling, weekend scheduling or any individual day scheduling. Timers can be scheduled for operation during the lowest time-of-day rates or to switch off the electric heater during period of utilities peak power usage. The time switches can be set to operate for up to 6 ON/OFF operations daily for a maximum of 42 ON/OFF operations weekly. Both models provide a convenient external override switch and LED load indicator for ease in scheduling hot water as required for extra hot water demands. The timers include a "AA" alkaline battery carryover which protects both time keeping and program information for a minimum of 3 years.

Product Information

Style Name: 240V 7,200 Watts
Technical Details
Part Number EH40
Item Weight2.4 pounds
Product Dimensions5.2 x 3 x 8 inches
Item model numberEH40
Style240V 7,200 Watts
Item Package Quantity1
Batteries Required?No
Warranty Description1 Year, replace unit, no labor
  
Additional Information
ASINB000NCYPOM
Best Sellers Rank #9,773 in Home Improvement (See top 100)
Shipping Weight2.4 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableNovember 9, 2004
  
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Customer Questions & Answers

Customer Reviews

4.1 out of 5 stars

Most Helpful Customer Reviews

56 of 58 people found the following review helpful By Keith Hellwig on March 11, 2009
Style Name: 208-277V 6,250 Watts
This product is easy to install if you know what you are doing.
You should have some background in electrical ampacity and wiring basics.

I did have to purchase an additional pigtail.(flex tubing with 3 #10 color coded wires, and 1/2 connectors on each end about 5 feet total length)

The heater had the wiring flex tubing direct from the wall to the top of the heater. The additional material was about 10.75 at the local hardware store.

I unhooked the wiring from the heater and wired it to the timer, then wired the new pigtail to where I had disconnected the original wires.

The timer has knockouts on the bottom for either 1/2 or 3/4 inch connectors so if it will accomodate either one. You most likely will have 1/2" connections.

Make sure you turn off the breaker before you start.

The entire process took about an hour total.

The instructions that come with the timer aren't that great, so if you don't know what you are doing, it won't help much.

The timer comes with 3 sets of on/off clips so you can time it on and off 3 times.

We set it at on at 5 am, off at 8 am, then on at 8 pm off at 10 pm.
So the timer is on 5 hours a day and off 19.

We figgure we will save around 25 dollars a month off the electric bill.

So... it will take at least 2 months to pay for the timer and other materials we bought. If you pay someone to install it, it will take much longer to pay for itself.

So far, it is working properly and so I am satisfied.
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56 of 60 people found the following review helpful By Amazon Customer on December 17, 2008
Style Name: 240V 7,200 Watts Verified Purchase
Ever take one of those energy self-audits? Mine had high marks for the easy things- insulation, updated windows, weather stripping, etc. But my water heater- I cannot install the 'tankless', because I have no chimney. It has always been electric, but keeping 55 gallons hot all 24 hours is not efficient. So I ordered the Intermatic, and once installed outside the breaker panel, found it to be as easy to operate as a setback thermostat.
You can set it to heat up prior to morning showers, then (on weekdays) turn the power off, and heat up again in time for evening meals, cleaning, etc. Weekends can be an entirely different schedule. There is even a 'shutoff' feature to bypass the schedule while you take vacation. Instructions are clear, and programmed from the front.
I feel this is saving money (and more still when we get Time-of-Day pricing).
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41 of 43 people found the following review helpful By R. Ewan on February 15, 2010
Style Name: 208-277V 6,250 Watts Verified Purchase
Having purchased 3 of these units over the years I feel qualified to comment on their performance. The first one failed after 3 years - the clock mechanism still turned but the switches did not operate. I purchased a second unit as I did not want to install a new box & wiring. The box mounts to the wall first then the mechanism is installed inside. I only replaced the mechanism. This lasted for 2 years before the clock mechanism stopped turning. (I should have kept the first dead one.) Again I purchased another unit as wanted a simple fix & I will not be in this house for much longer. This last unit only lasted 2 weeks before the switches stopped operating. I did not want the hassle of dismounting & returning it so I stripped down both units & made good one out of the 2.
The mechanism is very old school & has not changed in years. The clock mechanism becomes very hot from being driven 24 hours/day. I does not appear to be adequate to drive the system contimually. I would recommend purchasing a modern electronic system.
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27 of 27 people found the following review helpful By R. Saxton on December 30, 2010
Style Name: 240V 7,200 Watts
Bought this model of timer about 3 years ago. It has failed. It is easy to install and use but the main power relay coil has failed and I can't repair it so I must order another one.
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23 of 23 people found the following review helpful By Wes on May 23, 2010
Style Name: 208-277V 10,000 Watts Verified Purchase
The "Little Grey Box" (as it's called) arrived in perfect condition and was shipped on time. Installation was easy and it works as advertised. It came with "time pointers" enough for three settings instead of the two as advertised. (Bonus!) However; for my purposes I will only be using one on-off time. I am not an electrician and installation was easy with the right tools, plyers, screwdrivers, wire cutter and a proper wire-stipper. BUT BE ADVISED! Working around electricity scares me, especially 220. I made sure the breaker for the hotwater heater was off... And everytime I walked away to get or do something, or take a break, (I took my time with this), before starting the work again, I would check the breaker again to make sure it was off.
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20 of 20 people found the following review helpful By J. Brader on February 7, 2010
Style Name: 208-277V 10,000 Watts Verified Purchase
Easy to put on a wall, easy to hook up, doesn't make a sound. Important, when you take the insides out to mount, this is done by depressing the spring clip on top, and lift and pull out. Reassembly is reverse, but you have to make sure the side/bottom edges are behind the stops. If your not back and down all the way, the insides will seem loose and the timer will/could make noise, has you may read about in other reviews.
Our timer has not been mounted and running long enough to figure the savings, ours is set to run two hours in the morning and two hours in the evening. Our water heater, stays hot all day, every time we use water we got hot water all day and night when it is off mode. I am sure this will show great savings!!
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23 of 24 people found the following review helpful By Amazon Customer on November 11, 2007
Style Name: 208-277V 6,250 Watts Verified Purchase
I purchased one of these. I have it set to turn the water heater off between 11:00 PM and 5:30 AM. I save the cost of this every month in electric savings. A worthwhile addition to a house.
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Most Recent Customer Reviews

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Intermatic EH40 240-Volt Electronic Water Heater Timer
This item: Intermatic EH40 240-Volt Electronic Water Heater Timer
Price: $75.78
Ships from and sold by Amazon.com
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