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Chronomite SR-40/240 HTR 240-Volt 40-Amp SR Series Instant-Flow Standard Flow Tankless Water Heater

4.1 out of 5 stars 19 customer reviews

Price: $126.58 + $6.67 shipping
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  • 1.0-GPM flow rate
  • Two mounted chrome compression fittings
  • Rear electric knock-out
  • 3/8-Inch cold water inlet and outlet connections
  • Ideal for kitchen sinks, bar sinks, or dual lavs
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Product Description

Product Description

Chronomite was the first to patent a microprocessor technology which allows for a pre-set or controlled output temperature that delivers unlimited hot water without risk of scalding-in two seconds as opposed to the six seconds offered by other tankless water heaters. Chronomite is installed at point of use and is only operational when hot water is requested, thus dramatically reducing hot water delivery time and inefficient use of electricity.

From the Manufacturer

Chronomite was the first to patent a microprocessor technology which allows for a pre-set or controlled output temperature that delivers unlimited hot water without risk of scalding-in two seconds as opposed to the six seconds offered by other tankless water heaters. Chronomite is installed at point of use and is only operational when hot water is requested, thus dramatically reducing hot water delivery time and inefficient use of electricity.

Product Information

Technical Details

Part Number SR-40 (39353)
Item Weight 4.3 pounds
Product Dimensions 9.6 x 2.8 x 6.2 inches
Item model number SR-40/240 HTR
Voltage 240 volts
Wattage 9600 watts
Amperage Capacity 40 A
Item Package Quantity 1
Flow Rate 1 GPM
Batteries Included? No
Batteries Required? No

Additional Information

ASIN B001A0A4YQ
Customer Reviews
4.1 out of 5 stars 19 customer reviews

4.1 out of 5 stars
Best Sellers Rank #206,112 in Home Improvements (See top 100)
#282 in Home Improvement > Rough Plumbing > Water Heaters & Parts > Water Heaters
Shipping Weight 4.3 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available May 21, 2008

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

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Customer Reviews

Top Customer Reviews

Verified Purchase
I was somewhat skeptical about tank-less electric but I knew very well tank-less gas heaters from Europe where tank-less technology is used for over 50 years by now. Also, some companies put specs according to their agenda but then in practical use those do not perform. To my surprise I am very pleased with this Chronomite product - all is right on the button and no misleading. Unit is simple, small, very HD and absolutely marvelous. I replaced huge tank heater, run water from the tank to this unit, total cost of adapters was about 30 bucks, all available from local hardware store. I live in Central Florida, but it is winter now, so I get cold water at about 55 to 65 degrees. Unit is heating it very well, on kitchen faucet I get 125 which is 15 degrees more then before, and shower is only slightly less then what it was but only in flow, approximately 95% of flow from standard tank heater yet with water remaining at original 110 max. Consider that in Florida water pipes are embedded in concrete floor (yes, the plumbers job security it is, no kidding), and there is very little if any wrap on pipes to prevent heat loss. I the nut shell: I am very happy with this unit, even if it takes 40A from "former" tank fuse. It appears also that Chronomite heaters have very good soft start contact solenoids and there is no power blinking or EMF distortions present when unit goes on. Now, if you want to be real efficient, you may consider 120V 20A unit under the sink in the kitchen to give you hot water in about 5 seconds, then 240V 20A unit next to washing machine and 40A 240V unit for shower use. Consider those heaters have water flow restriction but if you place them accordingly you will never know those are there.Read more ›
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Verified Purchase
When my old gas 40 gallon water heater died I decided to try a point of use heater. Whenever I stayed in a hotel with them in the rooms I marveled at the instant hot water in the bathroom faucets. I looked at the Bosch units at Lowes. I had read some unfavorable reviews of them so I looked around and found the this unit. What impressed me was the 240v 40 amp rating and $167.00 price. Compared to the lowes units at 120v 30 amps and $217.00 cost it was a no brainer to go with the Chronomite.
I put one in the bathromm first to try it out. The line and fittings inside are 1/4"NPT so I was a little concerned about having to change out the large porcelin and brass shower head over the 1915 clawfoot tub I restored. As it turned out there is still sufficient flow with the cold mixed in for a great shower.
Installation was easy the unit being about the size of a paperback book. I Changed out the breaker in my panel from a 30 amp to a 40 amp and ran 3/8 copper line to and from the unit. No wait for hot water anymore. It used to kill me thinking about all the water going down the drain waiting for the hot water. It tends to be expensive where I live. The icing on the cake was my gas bill dropped about sixty dollars a month. Love it, love it, love it.
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Verified Purchase
We purchased this unit because the space we ran our school out of only had a 6 gallon water heater and we kept running out. This unit worked ok for the most part. Easy to install. The drawbacks would be that if we ran the faucet on full power, it was not able to keep up. The nozzle they sent with it to control the flow did not fit my faucet. It does state clearly that with out the flow control nozzle, the product will not work as expected and the are correct. So we were able to train our student to fill their buckets by only turning the faucet on 3/4. It worked fine then and the water was hot. The unit did die less than 1 year after getting it. I would not blame it ONLY on the unit though. We did NOT have a water softner and it looked like it filled up with lime and that killed it. SO ensure your water is NOT full of lime issues.

Overall, it worked for the time we needed it to, but I do wish it would have lasted longed. In the end, we did end up putting in a larger water heater.
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Verified Purchase
This thing will scald you if you let it. Make sure you have plenty of cold water supply to water it down with. Also have someone remind you to leave the shower after a few hours or you won't have any other life at all.
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Verified Purchase
Very small, easy to install. Supplies hot water to kitchen sink and new dishwasher. Keeps my larger tankless water heater
from cutting on and off so much. Hot water is instant.
My third Chronomite. Could not get replacement heating coil for first one when it burned out, but still purchased two more.
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Verified Purchase
I can now write a review that means something... Mine broke today, it lasted 5 years and 3 months and provided inexpensive hot water to a lavatory and a kitchen sink not at the same time. Flow rate is a little slow and because you are working with ambient water temperatures the outlet water various in temp between very hot in summer and not so hot in winter, of course I live in N. Florida so cold is at worst 28 degrees for a day or so in the winter and a humid 98 the rest of the time. It will not work for a shower, even low flow 1.5 gpm heads, there is just not enough output. Installation is an additional cost but I have good friend who is a plumber, so that was not a factor, but it could become one quickly, new wiring and new copper waterlines not to mention knocking a hole in the wall to install and access door so I could replace it. Glad I did now, and I will be replacing it with a new one. I suspect the reason it broke is buildup of calcium in the heating area. We have well water and it eats water heaters. Hope this helps you make a decision.
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