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Product Specifications
Part Number WH40
ColorGrey
Item Package Quantity1
Item Dimensions
Length5 inches
Width3 inches
Height4.25 inches
Product Features
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Product Description
From the Manufacturer
This Intermatic "Little Grey Box" electronic 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.
Product Description
- External override switch - May be able to save if "time of day" rates are used in your area - Heavy duty 40 amp rating - Easy to install - Easy to program - Supply hot water only when you need it - 10,000 watts, 40 amps, 250 volts, 60Hz capacity
Product Details
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Customer Reviews
Most Helpful Customer Reviews
11 of 11 people found the following review helpful
Amazon 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!!
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!!
8 of 8 people found the following review helpful
Amazon 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.
5 of 5 people found the following review helpful
Amazon Verified Purchase
I purchase this product with some resistance after reading the negative remarks on the noise produced after installation. I installed this timer a month ago and have yet to hear or experience any issues. This timer works just as it was designed and contrary to the comments that this makes way to much noise, I have yet to hear any noise. As for saving money, I'll have to wait and see but I'm pretty sure this is a smart buy.
Most Recent Customer Reviews
Great buy whenever you buy Intermatic
I've had many Intermatic products in my work, so when it came time to purchase a time for my hot water heater I went directly for an Intermatic. Read more
Published 3 days ago by kemorg
Water Heater Timer
Great for saving money on your electric bills, heavy duty construction. Easy to install, detailed instructions. Reliable unit that deliveres what it says.
Published 1 month ago by suptlic
Saves you Money
I bought this timer to control my water heater. It works great saved me money on my electric bill already. It was easy to install right next to my water heater. Read more
Published 3 months ago by Roxanne562001
Good construction and easy to us
My Dad has had a water heater timer just like this one for many years. It has served him well. So, when I bought a house I had him help set it up. Read more
Published 5 months ago by Tina Pegar
timer off
does not keep correct time, so it does not turn off and on when I want it to. do not buy this item
Published 5 months ago by wdl
Nice, functional and easy to install
I saw a few reviews about these being 'loud'. I installed mine in the electrical closet in my basement so it would not be an issue, but even standing next to it I can barely hear... Read more
Published 5 months ago by RH-PA
Poor design, cheap materials
I purchased this timer and installed it in May of 2010. It stopped working November of 2011, approximately 6 months after the warranty (12 month) expired. Read more
Published 6 months ago by GAD
Not Jumping
Installed unit in water heater closet. Unit works fine with manual control.
Automatic control does not work. Read more
Automatic control does not work. Read more
Published 6 months ago by J. sproles
WATER HEATER TIMER
IT WAS EXACTLY WHAT I ORDERED AND IT WAS LESS THAN I WOULD HAVE TO PAY AT THE BIG BOX STORES AND ELECTRIC WAREHOUSES.
THANK YOU.
THANK YOU.
Published 9 months ago by GAIL
Intermatic WH40 Electric Water Heater Timer
Received the item on time and it was exactly as I expected. Great product and service. Would recommend to others and price was right as well.
Published 9 months ago by Chris
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