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Heaters and More

Electric Heaters

Most hot tubs use electric heaters.  Compared to gas, electric heaters are less expensive to purchase and easier to install.  

We now use the Hydroquip Outdoor Series of electric heaters.  These feature Balboa controls, and come with advanced programmable functions such as automatic temperature control, filtration cycles, overheat and freeze protection,  quiet-time, and more. This is a dependable way to heat most tubs in most climates.  A digital touchpad allows the heater to be controlled easily from beside the tub.

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Available in standard 5.5 kilowatt size or upgrade to 11 kW for faster heat times.  For a soaking tub this is a simple and quiet system. This system can be ordered with a set 4 jets.

This heater is UL outdoor listed for safety and compliance with building codes. It features top quality components that provide automatic temperature control, heating and filtration cycles, automatic water quality (when used with UV water purifier), dependable operation, and easy installation.

The Hydroquip system comes with a heavy duty self-priming water pump with a leaf and debris strainer attached.  The system comes with a two year warranty. It can be owner-installed except for the electrical connection which must be done by a qualified electrician.

The controller, heater and pump are mounted on a 36" x 18" heavy duty skid base. 

Features:

  • Electric heater with digital Balboa controller for tubs with jets
  • 5.5 kilowatt electric heat (upgrade to 11 kilowatt available)
  • Digital touch control panel accessible from tub side
  • Dula speed spa pump for circulation and jets.
  • Heater, controller and pump mount a skid with dimensions of 36" L x 18" W x 26" H
  • Programmable features: temperature,four filtration cycles, time out, freeze protection, temperature calibration
  • Indoor or outdoor use
  • Complete installation instructions and owners manual
  • Two year warranty

Specifications

  • Dimensions 36" x 18" x 26"
  • 220 volt 50 amp GFI protected circuit required
  • remote touchpad with 50' cord
  • 1.5" NPT pipe union pipe connections

    


Gas Heaters

Gas heaters are a good choice for larger sized tubs or cold environments that require more heating power.  Gas heaters are more aggressive and faster than electric heaters, and are available for natural gas (NG) or propane (LPG).  We use the new efficient 105,000 BTU gas heater made by RayPak (larger sizes available upon request).  

Along with the gas heater, we add the Hydroquip 8000 series controller to manage the temperature, filtration, scheduling, and other functions.   

This system is UL outdoor listed for safety and compliance with building codes. It features top quality components that provide automatic temperature control, heating and filtration cycles, automatic water quality (when used with our UV water purifier), dependable operation, and easy installation.

The Hydroquip 8000 Series comes with a two year warranty. It can be owner-installed except for the electrical connection which must be done by a qualified electrician.

The controller and pump are mounted on a 36" x 18" skid.

Digital touch control allows the user to program the temperature, 4 separate filtration periods, quiet-time black-out periods, timeout to turn off jets after use, automatic freeze protection, time of day clock, and temperature calibration. 

Features:

  • RayPak 105,000 BTU heater available in Natural Gas or Propane (larger size heaters available)
  • State of the art SmarTouch digital tub controller
  • Digital touch control panel accessible from tub side
  • 1.5 horsepower dual speed spa pump (or single speed pump if you don't want jets).
  • Hydroquip Balboa Controller and pump pre-plumbed, wired and mounted on 36" x 18" skid
  • Programmable features: temperature,four filtration cycles, time out, freeze protection, temperature calibration
  • Digital touch control from tub side
  • Complete installation instructions and owners manual
  • Two year warranty

Specifications

  • 105,000 BTU (or higher if required); natural gas or liquid propane
    Required flow rate: 20-80 GPM
    Dimensions approximately: 26 x 20 x 16 inches
  • User-friendly control panel
  • Stainless steel burners for long, corrosion-free life
  • Integrated vent top for efficient combustion and exhaust
  • Bronze headers
  • Ignition System - direct spark requires no pilot flame
  • Combustion Chamber - High-tech ceramic fiber tile
  • Cabinet - Maintenance free, metal construction, provided by a weatherproof powder-coated finish over top of an anodized aluminum exterior.
  • Installation - The RayPak comes pre-wired for use with spa automatic controls
  • Easy-to-install 1-1/2" NPT connections

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Our Gas heated spa system is composed of the two components above - the Hydroquip control/pump (left) works with the gas heating unit on the right.

 

 


Chofu Heater - Wood Burner

The Chofu heater 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 heater is a simple solution to the problem of heating a natural soaking tub. It is ideal for those who want to heat with wood and works well with small or medium sized tubs. Great for remote cabins!

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.

Imported from Japan.

Operation
The Chofu operates like a conventional wood stove, achieving its fastest heating rate from dry hardwoods. It uses 17-inch wood with an 18-inch x 14-inch x 10-inch firebox. The most efficient heating comes from using small pieces of wood, loaded at 45 min. intervals. The Chofu has a high and low speed draft control to regulate the heating rate.

Heating Rate Information
Although the heating rate is variable depending on dryness of wood, frequency of loading, etc., the average heat output of the wood heater is 32,000 BTUs. A 200-gallon tub can be heated at approx. 20°F per hour.

chofu-woodheater.jpgchofu-flow.jpg

Features

  • High grade 316 stainless steel stove body
  • NO Electricity required!
  • 1/8-inch steel stove front
  • Heavy cast iron door and grates
  • Hot Tub Connection kit (see photo)
  • Generous size firebox, 18"L x 14"W x 10"H
  • Vented smoke-outlet for secondary combustion.
  • 3/4-inch drain for freeze protection.
  • An ash drawer for easy removal of ashes.
  • A long handled ash rake
  • No jets

Specifications

  • Dimensions: 16" wide x 23" long x 18" high
  • Weight: 59-lbs.
  • Stove body: Grade 316 stainless steel, inner wall 20-gauge, outer wall 22-gauge
  • Stove Front: 1/8-inch steel
  • Firebox door and grates: cast iron
  • Firebox dimensions: 18"L x 14"W x 10"H
  • Heat exchange surface area: 9 sq. ft.
  • Smoke outlet: 4 5/8-inch (reduced to 4-inch)
  • Circulating pipes: 1 3/4-inch O.D.
  • Water Drain: 3/4-inch I.D.
 

 

Compare Heaters:


HeaterFuel and PowerDimensionsHeat RateDaily Cost **Temp ControlFilterJets
Electric Electricity 240 volt 36 x 18 x 26 Medium Medium Automatic Automatic Option
Gas

Propane or Natural Gas

Electricity 120 volt

26 x 20 x 18

36 x 18 x 26

Fast Medium Automatic Automatic Option
Chofu Heater Wood - no electricity req'd  16 x 23 Medium Low Manual No No

** Note: Daily operating costs depend on many variables - and may be higher due to climate, tub size, local electric or gas rates.