Hi all,
I have a 5-bed, 4-bath house (1 master, 3 en-suite) plus a downstairs WC. It’s 270 sqm with 19 radiators. When the boiler was first fitted the house was 210 sqm, but was extended about 3 years ago and we bought it 16 months ago.
The boiler is an 8-year-old Vaillant Ecofit Pure 630 (30...