Just checked, we went for a gas combi boiler. 2k fitted with filter including the 360 quid for the mains gas supply. 10 year guarantee. Now this might not be a popular choice on here. Double the level of  insulation of building regs plus airtightness of 4.7. We also didn't need MVHR.    2k. All in and we don't use much gas for heating given the insulation. And we were able to have a gas hob. No space taken up by a hot water tank, no heating water when not needed and as 2 of live here n
    • Like
    3