Our 8' diameter x 3' high cedar (31" interior depth) is the largest tub diameter we make and is getting up to the monster level in terms of size. The 8x3 will hold up to 9-10 adults and you could throw in a couple of children too. It comes with 5 benches. The supports provide three staggered heights to accommodate varying sizes and bathing preferences. The highest bench provides both a cooling off position and provides ease of access into and out of the tub.
Heat rates are generally only of concern when heating up a fresh tub of water, but in this size tub and larger a 10kW is the minimum electric heat option. A 10kW heater with a nominal heat rate of 5˚/hour will have its have its hands full to heat up this tub in cold winter conditions. A 125,000 BTU gas heater will heat this tub about 19˚/hour.
18kW and 24kW electric heat options are available as special configurations, but will require a lot more room in the breaker panel. Call for pricing on upgraded 18 or 24kW electric heat systems.
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