Chofu gas fired water heaters are an alternate way to heat a hot tub or spa? This is it! This Japanese made "Chofu" stainless steel water boiler produces about 35,000 BTU of heating capacity by only either propane of natural gas. You can heat a small hot tub in approx 1 hour.
The Japanese have long been famous for their soaking Ofuro style hot tubs and this Chofu heaters is what they use to heat their bath water.
The Chofu water heaters naturally circulates the water using no electricity. Its design is based on Thermosiphon; the hot water rises and exits via the top port. At the same time cold water is drawn in to the heat exchanger via the bottom port.
Features
- Operates without electricity
- Automatic ignition switch
- Automatic heating timer
- Tub mounted remote control switch
- Drain valve for freeze protection
- Weather proof housing
- Safety shut-off for over-heating
Both the stove body of the Chofu and the heat exchanger are made with powder coated steel. The Chofu can be left outside without the danger of rusting or burning-out. A built in direct vent chimney means the unit ideal for outdoor use.
Also included with the Chofu is a spring loaded timer. Simply set the timer for the appropriate time setting to heat the given volume of water. The Chofu will automatically shut off once the time is over.
The Chofu utilizes a sophisticated heat exchange design for efficient water heating. The steel stove body surrounding the firebox is a double-walled water-jacket with a 1-inch space between, making the entire firebox (except the front) a heat-transferring surface. Additional heat transfer takes place in a water-filled baffle plate that runs horizontally through the firebox. The baffle deflects the path of the fire, so it gives up more heat into the water jacket before going up the chimney.
Specifications
- Dimensions: 17" high x 17" long x 10" wide
- Weight: 19-lbs.
- Stove Body: Powder coated steel
- Circulating Pipe Dimensions: 1 1/2-O.D.
- Drain plug to avoid freezing damage
The heating time varies by the amount of water capacity of the tub and the starting temperature of the tub. Generally the Chofu will raise 100 gallons by about 40 degrees F per hour. The unit comes complete with everything you will need including the through ports. Included is a 1 year warranty against Manufacture defects. The Chofu heater is perfect for cabins or anyone who wants to enjoy a hot tub with out any pump noises. Great for the do-it-yourself who wants to build their own hot tub.
This unit is designed for outdoor use only!
