About

House Warming is an independent platform that helps European households compare heat-pump models, evaluate subsidy eligibility, and estimate payback periods using real, current data.

What we do

• Aggregate heat-pump model data from the official EU EPREL registry, national subsidy lists and certified-product registries.
• Mirror household electricity and gas tariffs from Eurostat (updated semi-annually) for 32 European countries.
• Maintain country-by-country profiles of climate (HDD/CDD), grid CO₂ intensity and active subsidy programmes.
• Provide free open data: every analytical page links to its source and methodology.

Editorial principles

• Source transparency. Every figure on the site carries a provenance and a capture date.
• No paid placement. Rankings and comparisons are driven only by published parameters; advertisers cannot purchase better positions.
• Methodology versioning. When we change a formula (e.g. how the HW Affordability Index is computed), the change is published with the new methodology version.
• Independence. We are not affiliated with the European Commission, with EPREL, with EHPA, or with any heat-pump manufacturer or installer.

How we make money

The site monetises through display advertising, qualified installation-quote leads to certified installers in the user's country, and affiliate links to retailers — all clearly labelled. These never influence our editorial output.

Contact

Press, partnerships, data corrections — please open an issue on our GitHub or email us.