Watts Heat H2O Hot Water Recirculation System w/Programmable Timer, Instant Hot Water, 3 Year Warranty, Pump, 2 Adapters, Sensor Valve, Mounting Screws, 2 Supply Lines, Easy DIY Install (0955805)

I was really impressed with the Watts Heat H2O Hot Water Recirculation System. It’s a great product that does exactly what it claims—delivers hot water almost instantly without wasting time or water. The biggest highlight for me was how easy it was to install. I’m not a plumber by any means, but the instructions were clear and all the parts were included. I had it up and running in about an hour using basic tools.The programmable timer is a great feature. I set it to run during the times we usually need hot water, and it works flawlessly. Our bedroom shower is on the opposite end of the house from the water heater, and we used to wait forever for hot water. Now, the wait time has been cut by more than half—it makes a big difference in our morning routine.The included sensor valve and adapters made the whole process smooth. It’s also quiet when it runs, which was a nice surprise. Plus, the 3-year warranty gave me peace of mind.Overall, this system is a smart investment if you're tired of waiting for hot water. It’s efficient, easy to install, and adds real convenience. Highly recommended!

Wow! I wish I had done this sooner. It used to take nearly 2 minutes for hot water to reach my shower, wasting energy, water, and time. It now takes less than 20 seconds!First the build quality is excellent. The body of the pump is cast iron. One connection is 3/4 in. male thread and the other is a 3/4 in. female coupling. An extra long 10 ft cord makes wiring as easy as plugging in a lamp. The under-sink bypass unit is a thick plastic/nylon. The included connecting hoses are stainless steel braided hoses.Now for installation. The under-sink bypass installs easily with just an adjustable wrench. Installing the pump could range from easy DIY to moderately difficult depending on how your water heater was installed. If you have braided stainless steel wrapped hoses or flexible copper connecting the water heater to your house plumbing, it will be as simple as using an adjustable wrench to remove the connection to the WH and installing the pump with the same wrench. (Don't forget to turn off the water, the water heater, and drain a little off the top of the WH tank) If your WH was installed like mine, you will need some plumbing skills which may include cutting and soldering pipe and measuring and installing fittings . If you don't feel comfortable with these skills, a plumber could easily do this part for you. It took me about 10 min to install the under-sink unit (including cleaning out under the sink so I could reach the connections) and 3 hours to install the pump (including 3 trips to the hardware store). All in all, well worth the time, money, and effort. I expect this unit to pay for itself in a few years based on energy and water savings.

Very easy install on water heater and under sink. I set my timer and we have hot water available almost instantly. We used to have to wait at least a minute before water started to heat up. Excellent product!!

The system works by circulating hot water from a water heater to a distant sink using the cold water pipe as a return line. A sensor valve installed under the sink closes the link to the cold water line when water is turned on at the sink.Install was straight forward and took me about one hour (including moving all the stuff stored under the bathroom sink). Instructions for the installation are detailed and clearly worded with ample illustrations. All parts needed for the installation were included in the box since our sink water supply valves have 3/8' threaded fittings. Adapters are also supplied for 1/2" threaded fittings. If you have some other arrangement you may be making a run to the hardware store.The system works great. Before installing the pump we would wait 2 or 3 minutes to get hot water to the master bath located 55 feet from the water heater. We rarely used the shower or sinks because of the wait and because California is in the middle of a drought and it was a huge waste of water. Now warm water is available in 3 seconds. It takes about 1.5 minutes to reach full temp, but the water is immediately warm enough to comfortably wash your face etc. When the circulation pump is on the cold water line is warm. That has not been a problem for us, but if you want cold glass of water you have to run the water until the hot water is cleared out of the line. After one month of operation we have had no problems. A fifth star is withheld because the there is no easy way to shut the pump off if you leave the house for an extended time. The on-off switch is hard to see and inconveniently located on the pump on the top of the water heater. I could unplug the unit, but then would lose the time on the timer clock.