Editorial Policy

How topics are chosen

We prioritize homeowner research questions around heat pumps, insulation upgrades, running costs, grants, heating comparisons, and practical planning steps before requesting installer quotes.

How sources are selected

We prefer primary official sources for grants, tariffs, and policy details. Typical examples include government scheme pages, regulator publications, public statistics portals, and official advisory bodies.

Secondary commentary can be used for context, but core factual claims are anchored to official or primary references where possible.

Preferred official sources

Depending on region and topic, we commonly reference sources such as GOV.UK, Ofgem, Energy Saving Trust, SEAI, Eurostat, and national grant administrators.

How grant and rate data is checked

Grant values, eligibility notes, and unit-rate assumptions are checked against official pages and then updated in relevant content when changes are identified.

Where figures are volatile, we aim to include clear caveats and encourage users to verify details again before acting.

Review cadence

Key pages with price-sensitive or policy-sensitive claims are reviewed regularly and additionally after major public announcements that could affect calculator assumptions or guidance.

Correction handling

Potential factual issues can be reported through our Contact page. We review correction requests and update affected pages where needed, following our Corrections Policy.

Estimate disclosure

Calculator outputs are estimates only and should not be interpreted as guaranteed savings, grant outcomes, technical suitability, or professional engineering/financial/legal advice.