I have isolator valves on the flow and return to the heat pump.
I really only have to concern myself with the heat pump filling up again, maybe a bit simplistic but I don’t think it is too difficult.
I just don’t want to mess it up as it is our hot water and heating.
I am quite handy at this sort of thing, I have plumbed heating systems and wired houses before, but I am an accountant, a bit older and a bit lazy with just enough money to be able to pay somebody else to do it!
I have a small computer from work that is almost new that I can run HA on, I just had problems with Sandisk usb drives that kept getting corrupted with no way to fix.
I still haven’t fully decided on which tariff to go for over the winter but I know I want to be on Flux for as long as possible.
I added lots of panels this year and I am guessing as to their performance over the winter. So far they are doing better than I expected, I hope I can get well into November before I need to change, we’ll see.
How are you going to run your heating?
I plan to use pure weather compensation.
If I have our radiator sizing correct then I will be able to just leave all my trvs wide open.
My only concern is that the radiators in the bedrooms my not be enough, I am sure they are but they are the ones I will change if necessary.
If I need to change I will take some K2s from downstairs and move them upstairs and then fit K3s downstairs so I can reduce my flow temperature.
I may do that next spring in any case but I need to see how the winter goes with what we have.
I am more concerned at making this as efficient as I can than saving money, its become a bit of a challenge/hobby.
I am convinced that heating zones and trvs will hurt the efficiency, my aim is to balance the flow temperature to the heat loss of the house according to the outside temperature.
I just want the water to flow for as long as possible at the lowest flow temperature to keep us warm.
I am confident that we won’t be cold, I do know that the heat pump and radiators we have are enough to keep us as warm as we would ever want, that is 20c or more.
I didn’t do this to sit in the cold just to save money