Open source tools to help with heat pump design and understanding.

Calculate heat output and COP for a system with a counterflow plate heat exchanger between the heat pump and the radiator system. Fixed flow temperature version.

Calculate heat output and COP for a system with a counterflow plate heat exchanger between the heat pump and the radiator system. Improved fixed heat output version.

Calculate heat output and COP for a system with a low loss header between the heat pump and the radiator system. Fixed heat output.

Calculate heat pump SCOP based on design flow temperature.

Explore continuous vs intermittent heating, temperature set-backs and schedules.