Source selection
We prefer public manufacturer pages, authorized-retailer product pages and structured catalog data. A source must identify a specific product and expose enough information to record a useful price observation. Marketplace listings, used products and anonymous quote claims are generally excluded.
Model identity
We match offers using a model number, SKU or manually reviewed exact-product key. Products are not combined merely because they look similar or have the same stated capacity. When an option can change the price—such as wood species, heater, roof or cabin size—we treat the displayed value as a starting point and tell readers to verify the configuration.
Language and health claims
Our buying guidance focuses on specifications, installation, delivery and comparison. We do not present a sauna as a treatment or cure. Health-related decisions should be discussed with a qualified clinician, especially for people with medical conditions, pregnancy, implanted devices or medications that affect heat tolerance.
Commercial presentation
Commercial relationships can affect placement and which buying option is displayed. InHouse Wellness is featured and receives the exclusive displayed buying route when it carries an exact model. This policy is stated on relevant pages; it does not make the site a neutral ranking of every retailer. See the full disclosure.
Corrections and updates
Prices are refreshed on a scheduled basis and can be corrected between updates. We favor corrections supported by a public product page, manufacturer document or exact model identifier. Historical values may remain in source files for auditing even when an offer is no longer displayed.