Understand window U factor for UK homes. Which declared whole window values and documents to request, and the five supplier questions for EPC....
Understand whole-window Uw (not Ug), how Uw affects EPC/SAP and Home Energy Model results under Approved Document L/BR 443, and use a six-point checklist......
Understand how radiator thermostats work in UK homes, how to pair them with a room thermostat, and realistic savings of up to £110/yr....
Clear UK guidance on mini split heat pumps: how they work, COP about 3, typical install cost around £12,000, and why EPC and HEM sizing matters for......
UK technical guide to choosing expanded polystyrene insulation board and detailing junctions. Use Home Energy Model to verify the EPC impact....
UK guidance to choose closed or open cell spray foam: when 115mm vs 205mm is needed, BS 5250 moisture rules, costs and installation checks....
Plug in solar is now legal in Great Britain and can save UK homes £70–£110 a year. Read what to check on safety, DNO registration and EPC/HEM impact....
UK landlords: checklist for installing a Nest thermostat. Bring six documents and app evidence to get the install recorded for EPC and HEM....
Practical, evidence backed steps UK households can take now to cut electricity use and save tens to a few hundred pounds a year using EPC recommendations......
See when foam boards suit UK lofts, which types save headroom, and how vapour control, ventilation and HEM/EPC checks avoid costly mistakes....