The steps below will act as a steam shower size calculator. Follow the steps below to select the proper size steam generator for your steam shower.
Step 1. Measure then Multiply
Measure then multiply the Length x Width x Height (in feet) of the steam enclosure to determine the Cubic Footage
Step 2. Adjustment to Cubic Footage
Adjust the cubic footage to determine the Total Room Volume.
Materials: For natural stone or marble, multiply by 2.0. For ceramic or porcelain tile, or glass block, multiply by 1.35. If using another material, consult the manufacturer for their recommendation in a steam shower application.
Exterior wall: For one, multiply by 1.1; for two, multiply by 1.2.
Ceiling height: For a 9 ft. ceiling, multiply by 1.15; for a 10 ft. ceiling, multiply by 1.3.
Step 3. Select Steam Generator
Select a Steam Generator equal to or greater than your Adjusted Cubic Footage.
| Generator Size | Adj. Cubic Foot Range |
|---|---|
| 7KW Generator | 101-250 |
| 10KW Generator | 251-450 |
| 12KW Generator | 451-550 |
| 15KW Generator | 551-675 |
Note:
- If there is a skylight or outside window, select the next largest generator. Skylight or window must be double-pane and sealed from the inside the steam shower.
- Generator voltage must match existing local utilities (208 or 240 Voltage).
- For optimum performance, ceiling height should not exceed 8 feet (10 feet max).
Example
The example is based on a 5 ft. x 6 ft. x 8 ft. high room with marble walls and one exterior wall.
| Cubic Footage: | 5′ x 6′ x 8′ | = 240 |
| Material Adjustment: | 240 x 2.0 | = 480 |
| Exterior Wall Adjustment: | 480 x 1.2 | = 528 |
| Ceiling Adjustment: | 0 | |
| Adjusted Cubic Footage: | = 528 |
In this example, you would select the 12kw generator.