How to Install a Steam Shower

A steam shower is a combination of a wet style sauna as well as a shower stall. The primary reason to use a steam shower is to improve your health and wellness through hypothermia and release of toxins from the body through perspiration. Many respiratory afflictions can also benefit from steam therapy. Many steam showers are designed to be a luxury item often incorporating stereos, lighting and water jets into the design. Building a custom steam shower enclosure requires skill in electrical, plumbing, tile and general construction and can cost many thousands, even tens of thousands of dollars. Installing a steam shower unit is very easy and can be completed by almost anyone with very little effort.


  1. 1
    If you are replacing a bathtub with a steam shower unit, remove the bathtub before installing the steam shower unit. A steam shower unit is designed much like a refrigerator in that it is a sealed unit and you slide it into place and it requires no silicone seams.
  2. 2
    Ensure that the room containing the steam shower unit is built from mold resistant drywall, and provides necessary ventilation in order to prevent buildup of moisture in the room. Excess moisture can grow molds, mildews, and other structural damages. A single exhaust fan is sufficient for almost all residential steam shower installations.
  3. 3
    Ensure that the electrical supply for the steam shower unit is GFCI protected, due to the proximity of electricity and water in the unit. The size of the line will depend mostly on the size of your steam generator. Typical sizes of steam generators range from 3000 Watt to 6000 Watt. These would require 240 Volt, 40 Amp line, or 30 Amp for smaller steam generators. Electrician services may be needed in this step, in order to prevent electric shocks.
  4. 4
    Follow assembly instructions that came with your steam shower. Typical assembly time for a two person steam shower unit should be 2-4 hours for two people.
  5. 5
    Connect a hot water supply and a cold water supply to the steam shower unit. Steam shower units will require a hot water supply and a cold water supply to feed the shower heads and jets as well as the steam generator. The steam generator uses cold water to generate steam. These connections will be 1/2" flexible line connections in most cases. These flexible connections allow you to slide the steam shower to access the components and also for servicing.
  6. 6
    Also connect the drain for the steam shower unit. Steam shower units have a 1.5 inch (3.8 cm) flexible hose connection for a drain. This simplifies the drain connection as the existing location of your drain can be used so long as it is within the footprint of your steam shower unit.
  7. 7
    Level the steam shower unit by adjusting the leveling legs. Typically seven to ten legs can be individually adjusted to provide a stable and level base.
  8. 8
    If required and/or desired, finish around the steam shower unit to integrate the unit seamlessly with its environment. Any construction material that you use to finish around the steam shower must be mold resistant and suitable for wet conditions.


  • When installing items like door handles, orient the pieces of the handle so that the set screws and fasteners that hold the handles together are on the outside of the steam shower as opposed to inside the steam shower.

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Categories: Plumbing Drains Waste and Vents