I bought this for $199 in January. now it is $14 off.
paired with an Alexa outlet that I got for $5 I can get almost instant hot water when I tell Alexa a few minutes beforehand. I have a routine that turns on the pump for 45 min and then turns it off. It comes with a thermostat sensor valve that you put under a sink to use the cold water lines to recirculate the hot water.
NOTE: it doesn’t make hot water, it is used with existing hot water heater to circulate the hot water from the hot pipe and back to the water heater through the cold pipe.
https://www.amazon.com/dp/B000E78…UTF8&