Self-Installed WARMBLU 21,000 Gallons Inverter Heats and Cools Well

I already knew inverter technology is superior to standard single stage heat pumps but I was concerned at the companies claim this pool heater could heat up to 21,000 gallons. I installed myself, actually very simple. Running the a new electric circuit through the attic was challenging at 70 yrs old but I survived. Making the concrete pad was no fun either but I prefer to do things my way. The re-piping of the pool pump to the heater was easy enough but you should draw out what you need and make certain you enough fittings (mainly 90 degree), Tees and valves. The valves are critical because depending on the pump revolutions per minutes (RPMs) you may to reduce the water flow coming out of the heater. Each model has a different gallons per minute (gpm) requirement. The unit comes with an MPa gauge, is a type of pressure gauge that measures pressure in megapascals (MPa) on the back and you want the water pressure to stay in the Green zone. Lower the number on the gauge means high water flow but less heat transfer on the water discharge. It means if the water flow is to high/fast the is moving too fast to absorb the heat, so valve is needed on the heater discharge water line to slow the water flow down. See picture. When re-piping your system, you want to install a 3-way valve to the line coming out of your filter. This valve will do 2-things: 1- allow you divert water to the pool and to the heater, 2- allow you to isolate the heater and maintain water flow to the pool. I installed a second 3-way vale on the water line going into the heater to allow me to drain water out of the pool. Then installed a standard valve on the water discharge of the heater to adjust the water flow. If your water flow is too high the heater will produce a lot of condensation and drain out of the bottom. The unit comes with a key pad but the Smart Life App makes it a lot easier. Setting up the App was frustrating. You have to link your phone with the Heater and it uses WiFi (not Bluetooth). The heater becomes a Network and you have to connect your phone to that network, then you open the Smart Life App, Add a new device, select smart heat pump, it will ask for network, you will select your home Wifi, enter your password and it will download the heater. What's really nice about this heater, it also cools down the water temperature, yes heating & cooling. Here in Florida that's important because the pool water can go into the low 90 degrees. For my pool (13,000 gallons) it only took 24 hours to reach 86 degrees from 70 degrees. When the heater is running, it only uses 6-amps of energy or 1,300 watts = 1.3 kW which how your electric bill is charged. Using $.06 per kW, .06x1.3= $.078 per hour. If you run your pump 8 hours a day, that's $.62 a day or $18.72 per month. Also, when installing the PVC pipe and fittings, especially the 3-way valves make certain you have them going the right direction and install Unions in you piping to make it easier in the future to work on your system.