Updated Oct 20, 2026 · 3 picks · Prices checked Oct 15–20, 2026
A wood-fired stock tank hot tub is about as simple as off-grid comfort gets: a galvanized livestock tank, a fire, and a stainless coil or small stove that heats the water by natural circulation, with no pump, power or chemicals. Hot water rises out of the coil into the tub and cooler water flows back in to be heated. Our top pick, the Tree Tents USA Hot Tank Pro Package, ships everything in one box, including a 5 ft Hastings tank and a heavy stainless coil. Island Hot Tub's Chofu package uses a Japanese-style wood stove and suits a bigger tank you buy locally. For the lowest cost, pair a Smartclima coil kit with a Behlen tank from a farm store. Always stir and check the temperature before getting in, keep it at or below 104°F, and drain the coil before a hard freeze.
★ Top Pick
Tree Tents USA Hot Tank Pro Package
Why it's hereComplete wood-fired stock-tank tub: a 5 ft Hastings stock tank (about 130 gallons) with a 21 ft, 1.25 in 304 stainless heater coil, fire guard, stainless fire pit and hoses. No pump or power; the maker says it heats in about 10-20 minutes depending on weather.
No independent review used. Closest US match to UK Coil Tubs.
$1,400 – $2,520From$1,400 at Tree Tents USA(Pro Package)Up to$2,520 at Tree Tents USA(Premium Package with jacket, lid, paddle, thermometer)Price checked Oct 20, 2026This link: $1,400 at treetentsusa.com
Complete wood-fired stock-tank tub: a 5 ft Hastings stock tank (about 130 gallons) with a 21 ft, 1.25 in 304 stainless heater coil, fire guard,…
$1,400 – $2,520From$1,400 at Tree Tents USA(Pro Package)Up to$2,520 at Tree Tents USA(Premium Package with jacket, lid, paddle, thermometer)Price checked Oct 20, 2026This link: $1,400 at treetentsusa.com
⚠️ Stir the water and check it with a thermometer before getting in; keep it at or below 104°F, the CPSC hot tub limit. The coil, stove and pipe get very hot. Keep children away from the fire, never leave anyone alone in the tub, and check local burn rules.
