h_copter

Hi @apesort what did you end up doing with your ASHP and Thermal Store? I also have a large TS (2000litre) that is currently charged from a wood gassification boiler. I am planning on replacing it with ASHP and trying to decide whether to keep the TS or ditch it. The main motivation for keeping the TS is that I can charge it using offpeak electricity (6hrs@7p vs 28p daytime) and I can also suppliment the ASHP with immersions (6kW currently but can increase to 18kW), all at 7p. This means any heat efficiency losses are more than offset by the cost efficiency gain of almost 400%. DHW is in the same circuit as the rads, but also has its own solar thermal and back-up immersion. Flow temp needs to be a min of 45dC for our old house and demand during the coldest part of winter is 110kWh per 24hr. I'd be interested to know if anyone has installed a similar system.