Dan, thought I would send you a couple pictures. Your Ofuro Tub with the Chofu heater is absolutely fanstastic. My wife and I enjoy a good quiet soak on a near daily basis. Nothing melts away the stress like this baby!
Thanks Again for a wonderful product!
G. Moroz - Thunderbay


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Northern Lights Cedar Tubs Inc.
305 McKay Unit #20
Winnipeg, MB
R2G 0N5
Canada

Ph: (204) 977 1674
Toll Free: 1 800 759 8990
sales@cedartubs.com

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Chofu Water Heaters

Chofu Hot TubThe Chofu heaters have many advantages over Submersible in tub versions:

  • No interior room is lost compared to submersibles which take up the room of 2 people.
  • Is not effected by a minimum water volume level that an aluminum heater requires.
  • Allows for a marine grade vinyl insulating cover to be used thus retaining heat much better over a weekend (4” thick with child locks).
  • Water stays cleaner, as wood is not being loaded inside the tub.
  • Better temperature control, using a high and low speed draft control to regulate the heating rate.
  • Vented smoke-outlet for secondary combustion provides less smoke and sparks.
    Automatically circulates the water using thermosiphon (no electricity required).

Our wood fired  or propane heated hot tub heating  systems are a very economical way to enjoy your Northern Lights Cedar Tub. The only additional cost would be the preparation of a solid foundation. The wood fired tub system is very inexpensive to operate (cost of wood). It is ideal in cottage country, where typically users enjoy the pleasures of a soak during weekends and holidays. Wood fired heating systems release considerable amounts of heat. Lake water can be heated to operating temperatures in as little as 1-4 hours depending on the starting temperature and size (volume) of tub. The draw back of the Chofu system is that it must be drained and filled more often unless a optional 120VAC filter/pump system is added.

All tub kits come complete with materials and hardware.

wood fired hot tub heaterChofu Wood-Fired Water Heater

This Chofu model is a precision built wood-burning water heater designed specifically for hot tubs. It circulates water using the principal of thermosiphon (the pumping action created by rising hot water), eliminating the need for a circulating pump or electricity. This unique feature opens up a whole new range of possibilities for alternative hot tubs. Now you can have a basic soaking tub without pumps, chemicals, or high maintenance.

The stove body of the Chofu is made with high quality stainless steel, grade (316), so it can be used outside, without worry. And since the firebox is also made of stainless steel, it will withstand years of service without danger of burning-out. The smoke outlet on the Chofu features a unique vented collar that provides secondary combustion of unburned gases, for reducing smoke emissions and chimney sparks.

The Chofu utilizes a sophisticated heat exchange design for efficient water heating. The stainless 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.

Get more information on the Wood Fired Chofu Water Heater

Chofu gas heaterChofu Propane Water Heater

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, 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. It’s 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.

Get more information on the Propane Chofu Water Heater

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