In this chapter you’ll see how I build my own heatpump system to keep my house and shower warm.
To save energy and money, I will install a buffer tank to have hot water during the night. In the daylight
my PV solar system will provide energy to let the pump run. To save more energy in the same buffertank,
there will be added PCM to it. PCM stands for Phase Change Material. It can store energy in the melting traject of a material like parafine (candlewax). In this way you need a 30…50% smaller tank. To control temperatures etc. an Arduino-like PCB (Wemos) is used.