ChooseBuying guides
Before you spend it.
Compare what sellers will put in writing, what 7 brands' published terms actually cover, and what a setup costs over the period you choose. Nothing here is a ranking; every figure comes from you or from a dated document we link.
sources read September 19–27, 2026
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CalculateCost of ownership calculator
Purchase, setup, running and repair costs over a period you choose — cash, time and assumptions kept apart.
- IllustrativeExplore the evidence
Warranty comparison across 7 brands
Plunge, Renu Therapy, BlueCube, Sun Home, Ice Barrel, ORCA and Morozko: what each published document covers, who pays for repair, and what's still unclear.
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Vendor questions to get in writing
Sixteen questions to send every seller for the exact model and use — with the comparison sheet to record their answers.
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Read the guideResidential or commercial?
Configuration, support and coverage differences before you decide which one you're actually buying.
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Read the guideRepairability and parts
Parts access, technician availability and the service chain — questions to settle before purchase.