The Chofu Propane Heater is a high efficiency water heater designed
specifically for hot tubs. Like the Chofu Wood-Fired, the Propane Heater
circulates water by thermosiphon (the pumping action created by rising hot
water, see illustration), eliminating the need for a circulating pump or
electricity. This revolutionary concept enables you to have a simple soaking
tub without jets, chemicals, etc.
The Chofu Propane Heater greatly reduces hot tub maintenance, since it has
no moving parts and requires no electricity. Its designed for outdoor use,
with a durable powder coated steel outer casing and a stainless steel
exhaust cowling.
Inside the Chofu is an elaborate network of copper tubes with heat
collecting fins, that are heated by six stainless steel burners. The
configuration of the copper tubes is designed to create thermosiphon
circulation by allowing the heated water inside the heater to rise up and
flow into the tub.
Operation
The Chofu heats water on-demand, the day it is needed. (It does not have a
thermostat). The heater is operated manually with an automatic ignition
switch, however, it uses a spring wound timer to control the duration of
heating and to automatically turn off the heater. The main control switch
for the heater is designed to be mounted on the side of the tub, for easy
access in or out of the tub. If water in the tub looses too much heat while
its being used, it can quickly be brought up to temperature without having
to step out of the tub.
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.
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.
