As per the title I have a C3 rated house but we're finding it quite cold. One room in particular is very cold, but then it has 3 external walls and it's own roof bit that probably isn't well insulated.
The other issue we have is the downstairs can be cold but the upstairs roasting and we only have a binary heating system. For some reason the values are missing off all the rads. I did buy some but just using the top twisty bit means that I can either have the rad on or off, I didn't seem to get granular control. Is it worth getting new values fitted (properly) and should I do that power flushy thing I hear about?
House was build in 2002 and I recon the boiler is that old too. Would it be a massive job putting a new boiler in with two zones (upstairs and downstairs) and a thermostat of some kind?
Is it worth getting someone out to do thermal imaging?
Sorry for the rambling OP I'm sure I've missed stuff out so fire away with any questions and thanks in advance for any insights.