Steam Room Generators
How To Select The Proper Generator Size
1. Calculate the cubic footage of the enclosure. Length X Width X Height (in feet) = Cubic feet. Ignore deductions for benches or other intrusions as they represent surface area to heat.
2. Add the following adjustments to the cubic footage calculated in #1 above to account for your specific design features. (Multiply % indicated times cubic footage calculated in #1)
A. Ceramic tile thin set, acrylic or fiberglass. Add 0%
B. Ceramic tile mortar bed or cement board backing. Add 20%
C. Cast iron tub. Add 20%
D. For each glass, glass block wall or exterior wall (if freezing is possible) Add 10%
E. Natural stones (Marble, granite, slate). add 100%
Total = (1+2A+2B+2C+2D+2E)
3. Compare the total calculated in #2 above with the chart below.
| Max. Cubic Footage | Max. Cubic Footage | |
| *Available Models | 240V | 208V |
| AR4 | 75 | 50 |
| AR5, AK5 | 100 | 60 |
| AR6 | 160 | 85 |
| AR7, AK7 | 220 | 110 |
| AR8.5 | 300 | 190 |
| AR10, AK10 | 400 | 250 |
| AR17, AK17 | 725 | 560 |
| AR20, AK20 | 900 | 640 |
| AR30, AK30 | 1350 | 1000 |
* Larger AK and AR models can be used to heat smaller rooms.