So with a pump I guess the panels can be sited more flexibly (as opposed to passive thermal circulation where tank must be above panels) which makes a lot of sense.
How many sq m. of panels do you have and would more be better? (Always seems like a good source for heat pumps to me)
Water might freeze so what is the circulating fluid - just added antifreeze like a car radiator? - or are there other protections?
Grants etc:
Yes I'm often caught unsure which way to go on things, just do it myself with more care and much cheaper or the grant routes. Many of which are risky as RHI seems to be do it first and apply after, and others are a pain with short windows of opportunity and contractor pressures/problems. There was a R4 slot the other day where people talked about all the ways they were let down by contractors after very long waits and closing time windows. Even HMG added a year when they realised the last incentive was just about impossible to do it the time available and so extended by a year.
New scheme offers very limited numbers given the nationwide task out there so it is no way near a plan to make significant changes, more of a test pilot it seems. I have heard talk (
Clean Heat Grant: further policy design proposals) of the need for stable and suitable delivery and moving it to Ofgem as a longer term, or ongoing process, which sounds like some sense at last.
but then our insulation is currently really poor with solid walls.
