Editorial and corrections policy

Last updated November 10, 2026

HVACDatabase publishes reference guides for homeowners planning heating, cooling, ventilation, and maintenance work. The publisher is responsible for material attributed to HVACDatabase. A publisher byline does not imply professional certification or an independent technician review.

Sources and review status

Our source-reviewed guides link to the manufacturer, public agency, or other primary reference used for factual claims and show their revision date. This describes a documentation check, not a physical test or professional inspection. Older guides awaiting this check carry a notice and are excluded from our curated guide collection and search indexing until reviewed.

We may use automated assistance to draft or organize material. It does not replace source checking. We do not present generated examples as customer experiences, invent author credentials, or describe reference research as interviews, surveys, or field tests.

Prices, calculators, and comparisons

Examples are labeled as examples. Tool results depend on the inputs and assumptions shown alongside the calculation; they are not contractor quotations, measured building performance, or rebate eligibility decisions. Product guides identify the model or generation being compared. Confirm compatibility, current specifications, and local availability with the manufacturer.

Commercial relationships

We may receive subscription or lead fees from businesses and commissions through disclosed affiliate links. Featured placements do not establish license status, workmanship, or an independent product endorsement. Affiliate links should be identified where they appear.

Corrections and maintenance

Send the page URL, the statement in question, and a reliable supporting source through our contact page. We assess factual corrections against the available evidence. Substantive revisions update the guide's revision date. Material that cannot be supported should be corrected, withdrawn, or kept out of the source-reviewed collection.

For listing status and credential labels, read our directory information standards.