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Steam and Sauna

MrSteam Tips for the Trade and Professional

As a professional builder, contractor, or architect, you probably have many questions regarding the use, installation, and maintenance of the MrSteam® steam shower. Here are answers to some of the questions that are most frequently asked. If you don’t see your question here, be sure to use the Feedback form to tell us!

If there is more information about a specific answer within the web site, we have supplied a link to that information.

How do I know that I have selected the right-sized steambath generator?

The steambath generator must be correctly sized for the steambath room. Pay particular attention to room volume and construction. If you have any questions, please refer to MrSteam Size and Selection.

Marble, glass walls, ceilings and exterior walls require a generator larger than one based only on the room’s cubic foot (L x H x W) volume.

The physical size of the unit, clearance for plumbing servicing and its distance from the steam room must all be considered before final installation.

Who should install and service the steam generator?

MrSteam steam generators are connected to 240V line voltage and contain live electrical components. All installation and service to be performed by qualified electricians and plumbers only. Installation or service by unqualified persons may void the warranty.

How watertight does the steam room need to be?

The steam room must be completely enclosed with full doors, walls, floor and ceiling. All crack and joints must be filled with a silicone sealer. The steam room must be watertight: walls, ceilings and floors must be made of waterproofed materials such as tile, cement, marble, etc. Ceramic tile is the most commonly used material for steam rooms. It should be well grouted and properly sealed. Avoid the use of untreated and exposed materials which are susceptible to decay or corrosion.

What kind of ceiling should I provide?

Normal ceiling height is 7 feet 6 inches: the ceiling should be sloped 2 inches per foot in order to prevent condensation from dripping on the occupants. The ceiling can be sloped from the center to minimize height reduction.

What type of flooring should I provide?

Flooring should be skid-resistant for safety. The steam room should contain at least one drain for condensate runoff and cleaning.

Are there any considerations I need to give to the type of doors, windows, and vents?

Vents inside the steam room are not recommended, but if used, they must be positive closing vents. The vents must form a vapor-tight seal. Ducts must be waterproof. If a skylight or window is used, it must be double-pane, and skylights must be closed off and sealed at the ceiling height. The shower door used must be watertight.

What about a bench?

The steam room should have at least one bench for bather's comfort. It should be sloped slightly to provide for condensate runoff.

Where should I install the generator?

Select a location as near as possible to the steam room -- within 50 feet. Typical locations include: closet, vanity cabinet, insulated attic, or basement. Select a location as near as possible to the steam room.

Are there any places where I should NOT install the generator?

Do not install steambath generator inside steam room, outdoors, in an unheated attic or basement where water could freeze, or near combustible or corrosive materials and chemicals.

In installing the steam generator, are there any tips you can give me to help the installation and make the unit perform optimally?

Install steambath generator on a solid and level surface and in an upright position. Install an anti-water hammer device if required. Provide access to both ends of steambath generator for servicing.

Are there any parts of the equipment that become hot during operation?

Steam line, safety valve and drain valve become hot during operation. Provide appropriate protection.

Where should I locate the controls?

The Smart/One, Smart/Remote, Smart/Two and Smart/Plus controls are UL Approved for installation and operation in a wet location. This means that MrSteam controls can be located inside the steam room or on the outside of the steam room. See the Control Installation and Operation Instructions for specific details. If the Smart/Two or Smart/Plus controls are located outside the steamroom, a remote sensor (part number MSNC) is required.

Are there any plumbing tips you can give me?

All plumbing should be performed by a qualified plumber and in accordance with applicable national and local codes. Use unions on all pipe connections and only brass piping or copper tubing. Do not use black, galvanized or PVC pipe.

What water restrictions or concerns should I have?

Connect the steam generator to either the hot or cold water line. Hot water line is preferable. Hot water should not exceed 160 degrees F. Softened water is also preferable. Flush the inlet water line thoroughly before making connection to unit. A strainer is required if there are solid particles in the water. For best performance, water pressure should be 15 to 20 psig. You should provide an anti-water hammer device if required.

Where should I locate the steam head?

You should locate the steam head 6 to 12 inches from floor, except if you have a tub/shower enclosure, where the steam head should be 6 inches above the tub top ledge, or if used in a shower stall with acrylic or other non-heat resistant floors. In this case, install the steam head 20-30 inches from floor or use a steam shield MS-103412. If the steam room has seat(s), locate the steam head as far away as possible To preserve the steam head finish, do not use a wrench or other tools to tighten. Hand tightening is sufficient when Teflon or equal pipe thread sealing compound is used.

What type of wiring do I need to provide?

Check the power voltage. Use 240V rated-unit when supply is greater than 208V. (Most homes have 240V, 1PH service). Use a minimum of 90 deg. C/300V copper conductors only, sized in accordance with local and national electrical codes. Connect the equipment grounding wire to the ground terminal provided. Install a separate circuit breaker between supply and unit. On single phase units, use two-wire supply source with ground. Neutral (white) wire is not required.