above photos: Chofu heaters used with 5' dia. wood covered metal stock tanks.

Welcome to Island Hot Tub Company, your source for outdoor soaking tub supplies. We’ll show you how to make a big change in your quality of life for minimal expense; using a Chofu Hot Tub Heater and a low-cost tub you purchase yourself.

Since 1985, Island Hot Tub has provided quality products and accessories for traditional soaking tubs, both wholesale and retail. We are the exclusive North American distributor of Chofu Wood-Fired and Propane Hot Tub Heaters, precision-built in Japan by the Chofu Seisakusho Co. and specifically designed for soaking tubs.

Until we introduced Chofu heaters to America, it was hard to find a hot tub without jets, pumps, complex electrical circuitry, and all the other required paraphernalia. But Chofu heaters (with their sophisticated heat-exchange design) have created an entirely new option — a traditional soaking tub that is simple, easy to use, and requires very little maintenance. This system is very affordable because it utilizes commonly available tubs you can purchase yourself: stock tanks, wooden tubs, recycled spas, claw-foot bathtubs, etc. You provide the tub; we provide the heater, materials, and instructions.

A traditional soaking tub with a Chofu heater has three distinct advantages over a common hot tub:

  1. It heats water on demand, the day it is needed, thereby reducing energy consumption, and the expense of a thermostatically controlled heating system.

  2. Both Chofu Wood-Fired and Propane Heaters circulate water by thermo-siphon (the pumping action created by rising hot water), eliminating the need for pumps and electricity. This means you can now enjoy a basic soaking tub – simple, quiet, and inexpensive.

  3. With a Chofu-heated soaking tub, sanitation is greatly simplified because water can be frequently drained, making it practical to use quick-dissipating, non-toxic hydrogen peroxide (rather than toxic chlorine) for purifying the water.

Island Hot Tub specializes in providing information and guidance to folks putting together their own soaking-tub systems. We stock hard-to-find materials and accessories for tub-builders and offer information for locating other commonly available items. We also provide information and advice for sanitizing tubs without using harmful chemicals.

We’re happy to answer your questions about Chofu heaters, soaking tubs, or help with your do-it-yourself project.