Comments about Grundfos 3/4" Clip-On Thermostatic Control (595657):

Hi, In my new home we have several hot water faucets far from the hot water tank. So along with our solar hot water system, we put a recirc system into the house. However, we didn't want the recirculator running all the time constantly using energy. So we placed all the piping in foam insulation ( sealection 500 spray foam ) then bought this [$] thermostat to place just before the recirc pump. As the temp in the pipe goes down to 105 degrees, the thermostat turns on the recirc pump refilling the pipe with heated water. When the water temp in the pipe reaches 115 degrees, the thermostat turns off the recirc pump. This keeps the pump from running 24 hours a day while keeping hot water to my faucets throughout the house at all times. Now, wherever we turn on the shower, we never have to run several gallons of water down the drain until the hot water shows up. This [$] part saves both electric and water AND heated water as the hot water is not running through the pipes all the time. I'll see my [$] back in a year. This was a good buy.Roy