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Equipment for steam rooms include a steam generator, closely located to the unit. It will produce the water vapor,

which is forced into the room through an insulated copper pipe led through the wall in an area no less but also no

higher than 12” (304.8 mm) of the steam room floor . The copper pipe should be as short and as straight as possible

for optimal performance. Condensation may collect in pipe elbows or angles. Where the copper pipe penetrates the

wedi wall panel, it must still be insulated to not melt the wedi foam core. Appropriate insulation tape should be heat

resistant. The vapor inlet should be equipped with a shield making direct contact between users and the ca. 200°

Degree Fahrenheit hot water vapor impossible. The inlets should not be located in areas where users move or sit. The

inlet should not point the vapor directly against tile and grout surfaces.

Elaborate shower equipment and plumbing installation may be present, and at least a handheld shower or a hose

connection should be considered to clean surfaces in commercial use steam rooms more efficiently.

Lighting must be sufficient and guarantee safety of the users in a foggy space. Lighting may consist of LED or low volt-

age lights, chromatherapy lighting systems or fiber optic lighting sticking out from the ceiling where the fiber strings

are bundled on top of the ceiling and connected to a light source. Audio entertainment and speaker systems may be

present, as well as equipment for aromatherapy.

Heating systems, when used in steam rooms, should be hydronic systems. Caution must be applied before deciding to

heat surfaces. This extra heat may interfere with temperature guided steam generator operation. In addition, when a

steam room is operating at constant and high temperature levels, the water vapor will likely be less visible than would

be desired. To see vapor fog, the water vapor must meet air cool enough to bring the water vapor close to its dew

point (which fluctuates with density of vapor molecules in air). Cooler air is usually more prevalent in the lower areas

of the steam room.

Generally, all equipment used in steam rooms must be chosen based on their suitability for steam room use. Electric

equipment and fixtures must be rated for submerged use and carry an IP 67 class rating. Lighting may produce heat

and such heat should always be projected away from structures. Caution is necessary when working with lighting

commonly used in pools. These are often cooled by the pool water which does not occur in steam rooms. All metal

based equipment and fixtures should be corrosion resistant on the level of stainless steel 316.

Please ensure the manufacturer of all materials and equipment specifically approves the installation and use in a steam

room environment and is able to advise a safe and water and water vapor tight installation process.

b. The Special Challenges to Prepare the Steam Room for Water, Water Vapor and Temperature Exposure

Management

During a steam room’s operation, a steam generator forces water vapor into the steam room and the air is quickly

saturated with moisture and up to a level of 98 % or more relative humidity. While H

O water molecules are in a state

of gas form, they also carry great energy, and move rapidly and randomly. They are not as tightly packed as the same

O molecules in a liquid state (plain water), in which they also move much slower. Water vapor molecules constantly

threaten to penetrate the steam room structures including walls or ceiling but also benches or similar structures, in-

cluding floors. If that is allowed to happen, the water vapor and, subsequently, the condensation that it forms, may

cause damage to framing, subfloors, electrical installations, the adjacent room or equipment and materials outside

the steam room.