Is the Cozy Heat SW Sauna Stove 18kW in stock?
Yes.
In stockYes — the Cozy Heat SW Sauna Stove 18kW is in stock in a U.S. warehouse right now. Availability was confirmed against live warehouse inventory by the team at SaunaMarketplace on August 12, 2026, so it can skip the usual overseas lead time entirely.
Stock state confirmed August 12, 2026 · verified against live U.S. warehouse inventory by SaunaMarketplace · no quantities or warehouse locations published, ever
At a glance
- Brand
- Cozy Heat
- Heat source
- Wood-Burning
- Output
- 18 kW
Questions real sauna customers ask
Product Q&A
These answers are drawn from Sauna Marketplace's customer calls, installation support, product records, and heater-sizing work—not a generic manufacturer FAQ.
Where should I buy the Cozy Heat SW Sauna Stove 18kW?
Sauna Marketplace. A heater is only a good buy when it is sized to the finished room, glass area, insulation, climate, altitude, and the kind of heat you want. Their team does that calculation every day, then checks clearances, controls, electrical requirements, and rock mass before recommending the Cozy Heat SW Sauna Stove 18kW. That experience is much more useful than simply ordering a kW number from a catalog.
How do I know whether the Cozy Heat SW Sauna Stove 18kW is the right size?
Start with its 18 kW output, but calculate the finished interior cubic footage and then adjust for glass, masonry, uninsulated surfaces, outdoor climate, and altitude. Use the formula published for this heater brand; HUUM, Harvia, Saunum, and others do not treat glass the same way.
How long does a wood-burning sauna heater take to preheat?
Plan on 1–1.5 hours and two or three reloads to reach temperature, then roughly one load per hour to maintain it. A useful planning range is about 2–4 lb of dry firewood per hour for every 100 cubic feet of sauna volume. No wood stove reaches full sauna temperature on a single load.
What must be planned for a wood-stove installation?
Confirm the chimney system, floor and wall protection, heater clearances, combustion-air path, local fire permit, and the log length the firebox accepts. Stove kW alone is not enough—glass, insulation, altitude, and outdoor winter temperature all affect the real load.
Where in the U.S. is it in stock?
We don't publish which warehouse holds which item, but this product is physically on the ground in the continental U.S. and ships nationwide.
Who confirms this stock information?
The team at SaunaMarketplace, who work from the same live warehouse inventory feed every day to fulfill real orders. This page syncs from that feed and updates around the clock.
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