@jack @JohnMo @sharpener
Thanks all for your help, we really appreciate it.
So, apart from size, brand reputation, energy rating and coil size are they all basically the same as each other? No ‘smart’ features or bells and whistles or connections or anything that we need to look out for? Just get the cheapest that ticks the boxes and it should work with whatever ASHP you end up choosing?
Thanks @Nickfromwales I'll get in touch with him