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Steam Generator Sizing Guide
1. Calculate Room Size (cubic feet)
Length (feet): _______ X Width (feet): _______  X Height (feet): _______ (max. 8')  =

 cu/ft

2. Adjust for Construction Material (select one with the greatest heat loss)
Fiberglass, Acrylic, Cultured Marble - Multiply by 0.80 x
Corian - Multiply by 1.00 x
Ceramic Tile on Cement Board - Multiply by 1.25 x
Glass or Glass Block - Multiply by 1.35 x
Porcelain tile on cement board - Multiply by 1.60 x
Natural stone tile (i.e. marble, slate, granite)1/8"-1/2" on Cement Board-Mult by 2.0  x
3. Additional Considerations 
Exterior Insulated Wall(s) - Multiply by 1.10 for each exterior wall x
Steam Pipe Run is 15 - 25 feet - Add 20 cu. ft. +
Cast Iron or Steel Tub - Add 30 cu. ft. +
Skylights and outside windows must be double pane and sealed from inside the steam room - select the next size larger generator  
Height over 8’. Select next size larger generator  

Total Cubic Feet =

cu/ft

Example:
To determine the right size generator for a 4' x 5' x 7' room using tile over cement board with one outside wall:

1. Calculate the area of the room 4' x 5' x 7' = 140 cubic/ft
2. Ceramic Tile on Cement Board Multiply 140 by 1.25 + 35 cubic/ft
3. One exterior insulated wall Multiply 175 by 1.10 + 18 cubic/ft
  Adjusted Cubic Area = 193 cubic/ft
 
= SM-7 Steam Generator
4. Check steam bath specifications for appropriate size steamer.

Note:

  • For materials not listed, please call for sizing information
  • Commercial steam generators also available

 

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