Ceramic Tile = 130%
Natural Stone = 200%
Fiber Glass / Acrylic = 100%
Steam Line 50ft+ = 120%
Glass Block Wall = 110%
Steam Line Subject to Freezing = 125%
Glass Wall = 110%
A ceramic steam shower with the dimensions 7ft length by 5ft wide and 7ft high, is 245 Cubic ft. 7 x 5 x 7 = 245. Since the shower has a ceramic tile wall, it then requires a 30% cubic footage increase. 245 x 0.30 = 73.5ft
The ceramic cubic feet is then added to the original dimension to calculate the total cubic footage. 73.5 (ceramic) + 245 (steam space) = 318.5 ft
Now select the next size of Steamcore model generator which exceeds the calculated room cubic feet. In this case the 9kw Unit generator is required. If there is doubt in size, it is recommended to choose the next larger size.