ASHP Cost

[JohnMo]

We started with 6 zones, first years heating bill was huge, boiler just couldn't cope when only one or two zones calling for heat. Ended up adding a huge buffer. Then a light bulb moment,  made the whole lot a single zone.

 

This year ASHP, one zone, no actuators on manifold, no mixer or pump on manifold. Thermostat gives a direct start permissive to ASHP. Set up for cooling and heating. Cooling this summer no issue long run times, most or all electric from PV, CoP (or SEER), during cooling between 6 or 7. Not as effective as A2A, but good enough.