Wood-fired and off-grid tubs compared
| Model | From | Seats | Heater |
|---|---|---|---|
| Octagram Octagram Wood Fired Hot Tub | $7,500 | 4 | None; fully off-grid, no pump, filter or cords |
| Ohku Concrete Wood-Fired Hot Tub | $8,495 | 2-4 | External stainless wood-fired stove, 47,000 BTU, 25 x 16 x 18 in, 52 lb |
| Almost Heaven Saunas Sindri Wood-Fired Soak Tub | $10,621 | ||
| Almost Heaven Saunas Serenity Wood-Fired Soak Tub | $11,799 | ||
| Almost Heaven Saunas Kirami Wood-Fired Soak Tub | $13,250 | ||
| Almost Heaven Saunas Legend Wood-Fired Soak Tub | $13,550 |
Prices are the makers' listed prices when we checked them in October 2026. Makers change prices and run sales, so confirm on the product page before you order.
Compare two favorites in Octagram vs Zen Bathworks, and check burn ban rules if you live in a dry state.
Frequently asked questions
How long does a wood-fired hot tub take to heat?
It depends on water volume, the stove and the weather. Makers commonly quote a few hours from cold water. Smaller tubs and covers shorten it.
Do wood-fired hot tubs need electricity?
The stove does not. Some models add an optional pump, filter or jets that do need power.
Are wood-fired hot tubs allowed during burn bans?
Often not. A burn ban that covers outdoor wood fires can cover a tub stove. Check your local fire authority.
How do you keep water clean without a filter?
Many owners drain and refill more often, or add a filter kit if the maker offers one. Follow the maker care guide.
Keep reading
Browse our hot tubs collection, see all guides, or ask us a question about your project.