Calculation standard
Published examples must run through the same deterministic calculation core as the interactive tool and have regression tests. Formula or assumption changes require test updates and a review of affected guide values.
Source standard
Primary and authoritative sources are preferred for measurement, efficiency, units, and safety statements. Sources are linked near the relevant guidance or collected in the source register. Preset assumptions are identified as illustrative instead of being presented as measured population averages.
Uncertainty and claims
Results are estimates. Language should not promise savings, imply meter-grade precision, or use a product label as typical consumption without evidence. Commercial, environmental, and safety conclusions must stay within the evidence.
Reviews and corrections
Trust pages and guides display a review date. Material errors should be corrected in the calculator, tests, and affected content together. Corrections and evidence questions can be sent to contact@appliancecostlab.com.
Commercial independence
The current build has no ads, affiliate links, sponsored placements, or paid rankings. If that changes, relationships and selection criteria must be disclosed clearly and must not alter calculation results.
Publisher
Published and maintained by Appliance Cost Lab. This brand-only wording does not claim incorporation, certification, utility affiliation, professional auditing, or operation by a team.
Last reviewed: August 23, 2026