Source priority
We prefer primary sources: manufacturer manuals and specification sheets, retailer policy pages, government datasets and utility data. Secondary sources may provide context but should not override a current primary document.
Calculations versus specifications
Calculator outputs are estimates derived from user inputs and disclosed formulas. They are not presented as manufacturer specifications. Product voltage, amperage, dimensions and installation requirements should be verified in the manual for the exact model and revision.
Commercial separation
A featured-retailer relationship affects display order in product results, as disclosed in the methodology. It does not alter footprint assumptions, electricity formulas or category comparisons. Alternative sources are included to improve product-line coverage.
Health and safety language
We avoid promising disease treatment, guaranteed recovery or universal safety. Risk varies by person, product, site and installation. Readers should follow manufacturer instructions and consult qualified professionals when appropriate.
Corrections
Material factual errors should be corrected promptly. Submit the page URL, disputed statement and supporting primary source to corrections@tubsandsaunas.com.