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Fire Hazard Package
$53.00 Add to cartEven though secondary combustion in the Chofu eliminates most sparks, you may need to provide a chimney cap to further reduce fire danger during summer months or when the Chofu is located near conifer trees. A stabilizing bracket is required to secure the stove pipe when using a chimney cap.
What’s Included:
Stainless steel chimney cap
Stainless steel stabilizing bracket.
Price: $53 plus shipping
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Chofu Heater Package for Metal Stock Tank
$1,106.00 Select optionsTurn your metal stock tank into a hot tub! This package includes the Chofu Stove and all basic components required for a metal stock tank soaking tub setup. Ports are an additional charge, please select ports for your setup below.
Please note – the stock tank itself is not included. It is cost-prohibitive to buy a stock tank online. Read our guide on purchasing a stock tank for tips.
Chofu Heater $968.00
8ft of Stove Pipe (standard length) $74.00
Metal Stock Tank Drain Assembly $68.00
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Chofu Heater Package for Poly Stock Tanks
$1,114.00 Select optionsTurn your poly stock tank into a hot tub! Package includes the Chofu Heater and basic components required for a poly stock tank soaking tub setup. Ports are an additional charge, please select ports for your setup below.
Please Note – the plastic stock tank is not included. You will need to supply your own.
Chofu Heater $968.00
8ft of Stove Pipe (standard length) $74.00
Plastic Stock Tank Drain Assembly $72.00
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Chofu Heater Package for Wooden Soaking Tub
$1,110.00 Select optionsTurn your wooden soaking tub into a hot tub! Package includes the Chofu Heater and basic components required for a wooden soaking tub setup.
Please note – The wooden soaking tub is not included. You must provide your own wooden soaking tub.
Chofu Heater $968.00
8ft of Stove Pipe (standard length) $74.00
Long Shank Thru-wall Ports $68.00
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Chofu Heater Package for Bath Tubs
$1,146.00 Select optionsTurn your bath tub into a hot tub! Package includes the Chofu Heater and basic components required for a bath tub setup.
Please Note – The bath tub itself is not included. You will need to supply your own.
Chofu Heater $968.00
8ft of Stove Pipe (standard length) $74.00
Bath Tub Drain Assembly $72.00
One Plastic Thru-wall Port (short shank) $32.00
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Chofu Heater Package for Recycled Spa Hot Tub
$1,042.00 Select optionsTurn an old spa / hot tub into a working hot tub! Package includes the Chofu Heater and basic components required for a recycled spa setup. Ports are an additional charge, please select ports for your setup below.
Please Note – spa / hot tub basin is not included. You will need to supply your own.
Chofu Heater $968.00
8ft of Stove Pipe (standard length) $74.00
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Chofu Wood Fired Hot Tub Heater for DIY Hot Tubs
$968.00 Select optionsThe Chofu stove is a precision-built, high-efficiency water heater designed specifically for hot tubs. It circulates water using the principle of “thermosiphon” – the pumping action created by rising hot water, which eliminates the need for a circulating pump or electricity. A double-walled stainless steel water-jacket surrounding the firebox makes the entire firebox a heat-transferring surface. And Chofu’s exclusive high-tech welding process makes it unmatched in durability.
The Chofu wood fired hot tub heater enables you to build your own hot tub using a stock tank, wood tub, bathtub, recycled spa, etc.
It includes: (2) 1¾“Dia. x 10L” stainless circulation pipes, (2) 1¾ Dia. X 9L” neoprene tubes, and (4) clamps for connecting to a tub. Through-wall ports must be selected for the type of tub.
Note – This product is intended for DIYers that plan to get ports, stove pipe, drain assembly, and other parts separately. If you want all of those in one package, check out our Chofu Heater Packages.
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Stainless Steel Stove Pipe
$19.50 Add to cart24-in. long by 4-in. diameter. 8ft required for maximum efficiency of the Chofu wood-fired heater. For the past 18 years this pipe has been made to our specifications by an Amish sheet metal shop using premium grade 304 stainless steel. We have a low mark-up to encourage people to use this high quality stainless pipe that will last a lifetime. 8ft. of stove pipe is necessary to produce the optimal air-draw through the Chofu firebox for fast, efficient heating. A shorter chimney length will produce a slower heating rate. Stove pipe must be stabilized by our Stainless Steel Support Bracket if more than 8ft. of pipe or a Chimney Cap is used. When using a chimney cap, 10ft. of pipe should be used to compensate for the draft restriction created by the cap. Sheet metal screws for fastening stove pipe connections and a cobalt drill bit (required for drilling stainless steel) are provided when purchasing a Chofu heater. All stove pipe connections must be secured with three sheet metal screws to insure stability. The stove pipe must also be securely fasted to the 4-in. stove pipe adapter; however, the connection between the pipe adapter and the smoke outlet collar does not require sheet metal screws for stability, as this connection has a tight glove-like fit. When the Chofu is not being used, the stove pipe may be lifted off from the smoke outlet collar and stored.
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Stainless Steel Grate
$86.00 Add to cartChofu Replacement Grate
This one piece grate replaces the old Chofu two-piece cast iron grates and lasts six times longer.
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Stove Pipe Support Bracket
$14.30 Add to cartFor stabilizing stove pipe. Clamps around 4-inch stove pipe with three places for attachment. Necessary for stability when more than 8ft of stove pipe or a chimney cap is used. Wire can be attached from the support bracket to the ground or to a secure structure.
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Thru-Wall Ports with Freeze Plugs (pair)
$64.00 Add to cartThese ports are required for freeze protection with a tub wall thickness of 3/4 in. thick or less (stock tanks, etc.). Include threaded plugs with O-ring seals. Require a hole size of 2-3/8 to 2-1/2 in. diameter. Flexible neoprene sleeve bends to accommodate the angle of circulation pipes between heater and tub. Two ports are required with a Chofu Heater.
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Thru-Wall Ports (pair)
$59.00 Add to cartFor thin walled tubs 3/4 in. thick or less (stock tanks, etc). Requires a hole size of 2-3/8 to 2-1/2 in. diameter. Flexible neoprene sleeve bends to accommodate angle of pipe between Chofu heater and tub. Two ports are required with a Chofu heater.
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Brass Thru-Wall Ports (pair)
$52.00 Add to cartFor thin wall tubs with wall thickness of 3/8-inch or less (Stock Tanks, etc). Top port has a deflection plate to diffuse hot water entering tub. Flexible neoprene sleeve bends to accommodate angle of pipe between Chofu heater and tub. Neoprene sleeve accepts either 1-3/4 inch O.D. stainless tubes or 1-1/2 inch PVC pipe. Note: These ports do not receive plugs for Freeze Protection. Two ports require with a Chofu heater.
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Long Shank Thru-Wall Ports (pair)
$68.00 Add to cartThese ports are required for a tub wall thickness greater than ¾ in. up to 1-¾ in. thick (wooden tubs). The flexible neoprene sleeve bends to accommodate the angle of the pipe between Chofu heater and tub. These ports also receive optional threaded plugs with O-ring seals for freeze protection. Require a hole size of 2-3/8 to 2-1/2 in. diameter. Two ports are required with a Chofu heater.
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Drain Assembly for Metal Stock Tanks
$68.00 Add to cartNecessary to completely drain a metal stock tank because the drain provided is located on the side several inches off the bottom. Our stock tank drain assembly is installed on the bottom near the outside edge of the tank (Preferably the same side as the heater). Includes a stainless steel drain fixture, drain pipe, and brass gate valve with a garden hose fitting. Installation requires cutting a hole in the stock tank bottom using a 2-in. metal cutting hole saw mounted on a drill motor. The stock tank must be elevated at least 4-in. off the ground to provide clearance for the drain pipe, but also to achieve the proper height relationship to a Chofu heater for thermosiphon circulation.
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Drain Assembly for Poly Stock Tanks
$72.00 Add to cartNecessary to completely drain a plastic stock tank because the drain provided is located on the side rather than the bottom. Our drain assembly is installed directly in the bottom near the outside edge of the tank (preferably on the same side as the heater). The plastic stock tank drain assembly includes a longer drain pipe (required when enclosing the tank with vertical side panels). Drain fixture requires a 2-in. hole to be cut in the bottom of the tank using a hole saw with a drill motor. Note: A plastic stock tank must be elevated at least 4-in. off the ground to provide clearance for the drain pipe. Includes a stainless steel drain fixture, drain pipe, and brass gate valve with a garden hose fitting.
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Metal Stem Thermometer
$9.50 Add to cartGives a quick reading after stirring water (non-submersible). Responds in 12 seconds compared to a standard mercury bulb thermometer, which take several minutes. The slow circulation of a Chofu heater creates a stratified water temperature, necessitating a quick temperature reading after stirring the tub with a paddle.
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Digital Metal Stem Thermometer
$16.00 Add to cartGives a fast reading after stirring water. Responds in 6 seconds compared to a standard mercury bulb thermometer, which take several minutes. The slow circulation of a Chofu heater creates a stratified water temperature, necessitating a quick temperature reading after stirring the tub with a paddle. Non-submersible.
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Smoke Outlet Collar
$42.00 Add to cartThis enameled steel collar bolts to the smoke outlet flange of the Chofu heater. Designed with air inducing slits that pull air into the chimney pipe to create secondary combustion for cleaner emissions and reduced sparks. Must be used with a 4-inch stove pipe adapter.
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4″ Stove Pipe Adapter
$42.00 Add to cartConnects 4-inch stove pipe to the enameled smoke outlet collar on a Chofu Heater. Made of 304 grade stainless steel. Fits snug over the smoke outlet collar of the Chofu heater. Does not need to be permanently fastened to the smoke outlet collar due to a tight fit. Allows entire stove pipe to be lifted off of the heater and stored when not in use.
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Freeze Protection Port Plug with O-Ring Seal
$4.35 Add to cartUsed to plug PVC thru-wall ports during freezing temperature. Allows Chofu heater to be drained to prevent water from freezing in the water jacket, while leaving water in tub. The procedure is reversed when the Chofu is fired up again.
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Chofu Drain Plug
$6.30 Add to cartReplacement drain plug. This little guy gets easily lost in the grass. Luckily we’ve got replacements. Rubber gasket makes a water tight seal. Finger tightens.
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Chofu Connection Kit
$55.20 Add to cartProvided with every Chofu heater. Used to connect the Chofu heater to a soaking hot tub. Includes two stainless steel tubes, two neoprene tubes, and four wire clamps. Neoprene tubes come with a 90 degree bend that can be cut (as shown) to make a straight connection. Neoprene tubes have a 1-3/4 inch I.D. and connect to Chofu circulation pipes. Stainless tubes connect to thru-wall ports.
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Stainless Steel Connecting Tube
$12.00 Add to cartFor connecting a Chofu heater to a soaking tub. 10 in. long x 1-3/4 in. outside diameter. Provided with Chofu heater. Can be purchased separately.
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Neoprene Connecting Tube
$12.50 Add to cartFor connecting a Chofu heater to a tub. Connects directly to the Chofu Heater circulation pipes, fastened with wire clamps. Comes with a 90 degree bend but can be cut to form a straight connection between heater and tub, 1-3/4 in. inside diameter. (two tubes provided with Chofu heater)
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Neoprene Flex Connector
$11.20 Add to cartUsed to connect PVC thru-wall ports to stainless steel connecting pipes or 1-1/2 in. ABS pipe. This flexible tube bends to accommodate the angle of the connecting tubes between the Chofu heater and a soaking tub. Can also be used for non-standard hook-ups. 2-3/4 in. long x 1-3/4 in. inside diameter. Secured to pipe with wire clamps.
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Wire Clamps (4)
$6.00 Add to cartUsed to fasten the connections between the Chofu heater and a soaking tub, superior to water hose clamps. Tightened with a screw driver. Package of 4.
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Chofu Replacement Front
$155.00 Add to cartHeavy steel front that fits any Chofu Wood-Fired heater. Includes cast iron door, ash drawer, and baffle clean out plate. Inside of door has a reflective stainless steel plate to deflect heat back into firebox. Backed with high temperature refractory insulation to keep door from getting hot. Attaches to Chofu stove body with four screws.
