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APCOM UT1 Hot Water Recirculation Pump For Under Sink - Instant Hot Water Recirculating System For Tank Type Water Heaters

  • Based on 272 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jul 17
Order within 3 hours and 40 minutes
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Features

  • Instantly Experience Hot Water - Enjoy the comfort and convenience of hot water in your home without the wait.
  • Energy & Cost Efficient - The most energy efficient circulator on the market that reduces waste and costs associated with the consumption of water.
  • Fully Automatic Operation - This under sink recirculation system is controlled with a built-in thermostat and timer to conserve water. The pump typically runs three to four times per hour for one to two minutes.
  • For technical support or installation questions, contact . One Wrench Installation - Kit includes stainless steel pump, 2 braided hoses, 2 tees and all necessary fittings. Installs under sink in less than 10 minutes. Pump is designed for indoor installation. No plumber required.
  • Without Dedicated Return Line - Designed for single pipe system homes without an existing hot water return line and up to 250 ft of household piping. Works with standard hot water tank or indirect water heater. Electrical outlet required under sink.

Brand: AO Smith


Color: Black


Voltage: 120 Volts


Item Weight: 3.77 Kilograms


Efficiency: High


Brand: ‎AO Smith


Color: ‎Black


Voltage: ‎120 Volts


Item Weight: ‎3.77 Kilograms


Efficiency: ‎High


Mounting Type: ‎under sink


Is Electric: ‎Yes


Manufacturer: ‎A. O. Smith


Item Depth: ‎8-10 inches


UPC: ‎020363201630


Item Weight: ‎8.29 pounds


Package Dimensions: ‎9.17 x 8.27 x 7.95 inches


Item model number: ‎UT1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 9, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • This device is amazing - worth every penny (and your time).
I considered some of the less costly offerings but in the end I realized I was going to put a half-day's labor into its installation, took a deep breath (I'm very thrifty) and elected to buy a product that would respect my time. I'm not disappointed. The APCOM recirculation pump has brass fitting and what appears to be a steel pump body (I didn't check it pretty heavy to be aluminum). The product includes all the hardware needed for an installation in North America. While I'm sure the chrome on the fittings make them more durable, I was a little frustrated the plating was thick enough to require an adjustable wrench (which it does say in the instructions) instead of my Snap-ons. I have none of these knuckle-busting, nut-rounding potential projectiles in my tool box but fortunately my ol' lady isn't so curmudgeonly and was able to come to my rescue with a nice collection she hides from me somewhere in my own garage. The pump itself is pretty quiet, but vibrates the floor of my cabinet that I can hear it in the room next door where I keep my office. I did not elect to screw the pump body to the floor of the cabinet, but there are holes in the mount to do just that. It sits just fine without - but the peculiarities of my home may force me to buy four screws and rubber pads. I'm not sure why they didn't install (what I assume are check valves - on is position marked) instead of depending on your reading the instructions. If you're like me and have the battle cry "I don't read instructions, I write them!" It helps to know I'm an engineer. Do yourself a favor and match the brass fittings with the red paint on them. Finally, this comes with a single page, well written instruction sheet but in ENGLISH ONLY (not a criticism). I suppose if you're a Spanish speaker you could get one of your kids to read it to you; it's very straight-forward. I don't know how to recommend this product more. Update after a few days... I sacrificed a silicon trivet to place under the pump (no screws). Perfection! The cabinet no longer resonates and it absolutely cannot be heard. I think I paid $9 for a set of four here on Amazon (Premium Silicone Trivet Mats: 4 Multi-Purpose Pot Holder, Oven Mitts Hot Pads– Versatile, Heat Resistant, Non-Slip Jar Opener, Gripper Pad, Garlic Peeler, Drying Mat, Coaster - Heavy-Duty (Black)) ... show more
Reviewed in the United States on March 21, 2021 by Michael Ondusko

  • Hot water almost instantly
This hot water circulation pump solved our problem immediately and we are now saving hundreds of gallons of water by not having to wait for hot water to reach our bathroom. Would definitely recommend. Easy to install.
Reviewed in the United States on May 27, 2025 by David

  • Very solidly built.
It installed very easily. I hope it lasts. I run the pump 16 hours a day. It comes on about 8 times and hour for about 35 seconds and runs at 66 watts. I don’t use the built-in clock. I’m using a smart plug instead. The installation instructions recommend that you put thermostatically controlled blending valves on you showers. Today I got to feel why. As I was showering all of a sudden the shower water became very hot when the pump kicked on and suddenly there was hot water in the cold water line. Unfortunately my water pipes are not insulated. There is a three year warranty on the pump and a one year warranty on the rest of the assembly. I suspect the clock will be the weak point but since I don’t use it I don’t care. The last pump I had was half the price but only lasted 6 months. It was a different brand. The manufacturer is APCOM which is a recent acquisition of AO-Smith. ... show more
Reviewed in the United States on January 24, 2025 by D. L. Steve

  • Works Great
Update: After working great for 7 months, one of the brass tee fittings started to leak. No idea why this happened, but it was leaking in the threads. I called Apcom customer service to see if i could get a replacement fitting. After a long hold, the person did not know what i was asking for and transferred me. I was immediately put into an after call survey. I called back and got the same person and the same exact thing happened. I called a 3rd time, got a different person and they said someone would call me back within 24 hrs. Never got a call, days later i starting searching for a replacement part and it was hard to find. I found this Lasco tee that was pretty much and exact match. "LASCO 06-9123 Angle Stop Adapter Tee for 3/8-Inch OD Compression x 3/8-Inch OD Compression x 1/2-Inch Slip Joint". Installed it and am back up and running. I realize now what others have said about Apcom is true and their Customer Service is not good. So easy to install, instant hot water now, i mean instant! Got the 10 MM silicone pads that are suggested in other reviews and some small stainless steel locking bolts/nuts and just set it on the cabinet base. We do not use the timer it comes with, instead we use a Kasa smart plug. Runs so quiet, we don't hear it at all, zero vibration. Very pleased with this after having it for several months. ... show more
Reviewed in the United States on July 3, 2024 by CraigK CraigK

  • Failed after one year
Unit worked at creating instant hot water by putting hot water into cold water line. Because of this the cold water was warm unless we let the cold side run, wasting water. But biggest problem is that after one year of operation, it now trips the circuit breaker. $360 for one year of operation equals $30 per month -- decided it was not worth paying this for another year (or less) before the next one fails. There is a reason this one has a limited warranty! ... show more
Reviewed in the United States on February 21, 2022 by RAMSL

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