@Artemisfornow Can you include more info of your heat pump set up . Size of unit and house heat loss calculation .
Make and model . Sounds more like you have a poor insulation.
@CosyWarmPlumber I think anyone working self employed needs to be working for £500 a day minimum. I would always allow 2 days on boiler swap if I get done in one day great .
@PeterEastern How are you fitting heatpumps are you working under an umbrella company to get grant ?sign off etc
Im just interested as I not sure what’s best route is it worth going MCS .
@nixonelectrical I think it’s about 20mm build up .
What I didn’t like about ripping up the floor was it’s a lot of effort and putting the wood floor back on top does hold the heat back you need to run higher temps .
It’s a bit expensive but maybe look into concrete 18mm flooring hardie