Model # ACT-E1

Internet # 100037011

Undersink Instant Hot Water Circulating System

$249.99 /each
  • Built in automatic sensor
  • Instant hot water for all fixtures
  • Easy to install



Model # ACT-E1

Internet # 100037011

With 1 simple installation of the Autocirc Undersink Instant Hot Water Circulating System you assure instant hot water delivery to all fixtures in your home. A built-in sensor automatically turns on when the water temperature dips below 85 degrees Fahrenheit.

  • Requires only 33 watts of power
  • Easy undersink installation with no extra plumbing required
  • Customize system operating periods to suit family usage with the built-in 24-hour timer
  • 6 ft. power cord included


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Finish Family 
Bronze housing 
Product Type 
Recirculating Pump 
Product Weight (lb.) 
4 lb 
Warranty / Certifications
Manufacturer Warranty 
2 year warranty from date of manufacture 


Product Type: Recirculating Pump
Price: $200 - $250
Review Rating: 4 & Up


Rated 4.3 out of 5 by 193 reviewers.
Rated 5.0 out of 5.0 by No more minutes of cold water What a great product. The installation was very easy. The product has been in use for over a month and works as advertised. Installation was in a sink cabinet in the master bath. I made a slight modification to the mounting bracket by adding a piece of felt to reduce any vibration noise from mounting to the cabinet back panel. You can't tell when it's running. December 27, 2015
Rated 5.0 out of 5.0 by Works Great Installed in sink furthest way from water heater (master bath). It keep water warm in enough on the entire first floor of my home to heat up in seconds vs. minutes. Including the laundry room, kitchen sink, guest bathroom and master bathroom. Should pay for itself in a very short time based on the amount of water previously used while waiting for the water to get hot! December 15, 2015
Rated 4.0 out of 5.0 by Easy to install - Provides instant 95 degree water - then hot within 10 seconds Easy to install. The unit does not come with water lines so you need to purchase 3/8 to 1/4 compression. You remove the water lines to the sink -then hook them to the pump top. Then attach the new lines to the house water and pump. Easy to install. Plug the pump in and you get 95 degree water. Then when you turn on the faucet- 10 seconds later you get hot water. I insulated the hot water line in the basement. The water lines are PEX so they do not retain heat like copper. So we went from running the hot water for 90 seconds to 10 seconds. The water is 95 degrees on the hot side and cold side since the water is being mixed. In 10 Seconds you can get the cold water to run cold and the hot water also. So we are saving 80 seconds of wasting expensive water. I see no difference in how the water heater runs. I will update once I get my next water / gas bill in 30 days. February 25, 2015
Rated 5.0 out of 5.0 by The Autocirc turned out to be a good choice to get instant hot water I spent several months researching the best solution to get instant hot water to a bathroom that is quite a ways from the water heater. The Autocirc instant hot water pump turned out to be a good solution. I have had it about 6 months and it works well. And it was easy to install and less expensive than some other solutions. The installation was easy as I have an electrical plug that was close by. The water hookup was easy, just 4 flex hose connections. The pump is not noisy. It does make a hum when it is running but I can't hear it except when I am in the bathroom. And to me it is not any louder than a refrigerator or the HVAC. It has a timer and I have it set to run in the morning and evening and even when it is on it does not seem to run very long at a time. I tried to notice if I could tell any difference in my gas bill because of the water heater running more but it did not make a noticeable difference. It does make the water at the sink hot quickly and at a close by shower within a few moments. Another thing I noticed is before installing the Autocirc if I shut the hot water off for a short time it would quickly cool down, which was annoying. The Autocirc solved that problem. This is not really a complaint but the water only gets warm not hot, I wish the hi temp were set a little hotter, say 5 degrees or so. This is not a problem for me but be aware the cold water at the sink does get warm until you run it a few seconds. April 19, 2015
Rated 5.0 out of 5.0 by Less water waste I installed this under a pedestal sink so there is no cabinet to absorb the noise but the pump is still reasonably quiet (less than a quiet bathroom fan). I added a receptacle into the lighting circuit so the fan only runs when the light is on. Once you turn the light switch on it takes about a minute for hot water to reach the pump (which is about how long you'd need to run the faucet to get hot water without the pump). Easy to install but be sure to order two faucet supply lines when you're ordering the pump. Your existing supply lines from the shutoff valves to the sink will get connected from the valves to the pump, then you'll need two more 3/8 X 1/2 lines to connect the pump to the faucet. January 31, 2014
Rated 4.0 out of 5.0 by Overall, this product works as it is described. I installed the pump under our kitchen sink, as this is the furthest water faucet from our water heater. I set the timer to operate between 6 AM and 10 PM, and during those times, we have warm or hot water available within seconds. Way better than before...which could take up to 90 seconds to flush cold water from the pipes. There are some noises (gurgling and squeaking) as the pump starts and starts, like shutting off a ball valve, and only minor noise when the pump is circulating. With the cabinets closed, the noise is tolerable. Overall, a good purchase and when compared to other, more elaborate pumps, very cost effective. January 8, 2013
Rated 5.0 out of 5.0 by Worth its weight in gold I have used this pump for over 10 years and never had a problem with it. My water inlet from the street is at least 50 feet from my second bath room and shower and I never have to wait for the hot water in the bathroom sink. The shower takes a little bit longer because of the length of the pipes. All of the other sinks in the house have instant hot water. This pump has probably saved me thousands of gallons of water over the years since I installed it. I might add that in my town we have strict water conservation rules. April 28, 2014
Rated 5.0 out of 5.0 by Why did I wait so long This is one of the best DIY's that I have done to my home. Not sure why I waited so long. Once an electrical outlet was installed under my cabinet the rest was easy. Took about 30 minutes to install the pump. I did have to buy two 1/2 to 3/8 hoses for the pump and sink. Found those at my local hardware store. I am not using the pump timer. The pump operation is quiet, you won't hear it. I now have hot water at all of my sinks in the house in less than two seconds. No more wasting water waiting for the hot water to arrive. The pump is well built, solid brass with a brass impeller. This is well worth the price and will eventually pay for itself. Uses less electricity than a night light! Remember to install the pump at the sink farthest from your water heater. October 27, 2015
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