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What Is a Steam Shower? A Guide to the Popular Bathroom Upgrade

Everything you need to know about the hot home wellness feature.

Peter Rymwid / Designer: Sharon Sherman / Courtesy of MrSteam floor tile floor tile

Steam showers were everywhere at the Kitchen and Bath Industry Show of 2023, and it's no surprise. Recent home trends have prioritized maximizing space while providing personal wellness benefits—steam showers are an excellent example of how to do both.

" Steam is humankind's oldest therapy, dating to the Greek and Roman times. Despite its long history, steam continues to surprise people with its wide range of health and wellness benefits," says Martha Orellana, vice president at MrSteam. 

Here, we explore what steam showers are, their benefits, and things you should consider before adding a steam shower to your own home. 

“A steam shower by definition is simply a fully enclosed space that delivers steam,” says Orellana. Steam showers rely on a steam generator located outside the shower to produce steam. “With the touch of a button or screen, the steam generator heats water until it vaporizes and then quickly releases the resulting steam into a steam head within the shower enclosure.” 

“Steam showers can fit into nearly any traditional shower if enclosed, insulated, and sealed,” says Orellana. A steam shower can be incorporated into an existing traditional shower and can be outfitted to offer experiences like aromatherapy, chromotherapy, and music therapy.

If you’ve ever wiped condensation off the bathroom mirror, you know that traditional showers do create steam. However, this isn’t the same as a steam shower. “While traditional showers may release some steam, they are less effective than a fully immersive steam shower system from a wellness perspective,” says Orellana. A steam shower is designed to be fully enclosed to capture the steam inside the shower, whereas a traditional shower typically has openings that release steam into the rest of the bathroom.

Although both amenities sound hot and relaxing, saunas and steam showers provide different experiences. 

A sauna generates heat from a stove inside the space, while a steam shower relies on an exterior steam generator. They're also aesthetically and structurally different. While steam showers can be inside a traditional shower and bathroom footprint, a sauna requires its own room.

"Saunas are traditionally constructed from kiln-dried wood (often cedar or spruce) that can withstand much higher temperatures and lower humidity," says Orellana. "On the other hand, steam showers are constructed from ceramic tile, natural stone, glass blocks, or other waterproof, nonporous materials that are conducive to a moist environment." 

Perhaps "the biggest difference between saunas and steam showers is the heat itself. "The type of heat differentiates a sauna from a steam shower. Saunas deliver dry heat therapy while steam showers offer wet heat therapy," says Orellana. "Sauna temperatures range between 160°F and 200°F with very little humidity. Steam showers range from 105°F to 115°F with nearly 100% humidity," she says"

Steam showers are often incorporated into traditional showers and may even be added to an existing space without a major renovation. However, they do have some very specific requirements that need to be met. 

“For the steam shower to function correctly, it must be installed in an enclosed, water- and vapor-tight space,” says Orellana. “The steam room should have no heating, venting, or air-conditioning components.” Any windows in the shower should be double-paned, all light fixtures must be vapor-sealed, and the ceiling height should be between 7 and 8 feet. As for the steam generator, Orellana says it should be placed within 60 feet of the steam shower and should have at least a foot of space around it to allow for servicing. 

Also good to know: Large format tiles or slab walls are an especially good choice for shower surrounds because the larger formats collect less condensation. 

According to Jamie Gold, a Certified Kitchen and Bath Designer, and a Wellness Design Consultant, the pandemic made many people realize how home environments can contribute to well-being. As a result, steam technology for the home has become more popular and well-known. 

“Homeowners have experienced their benefits at the gym or resorts and want those benefits at home, where they’re spending more time now,” says Gold. “It can improve your physical (respiratory, circulatory, skin, joints, etc.) and mental (stress release, relaxation) health.”

According to Gold, it's harder to move into a bigger or better home in the current real estate market, so homeowners are improving their existing spaces. She says steam showers are gaining attention as one of these improvement projects, in part because they add value to a home.  

"Homebuyers are increasingly willing to pay a premium for quality features, like steam showers, that support their wellness goals," says Orellana, citing a Zillow study that found steam showers can increase a home's value by as much as 31%. 

For those who like a long hot shower or soak, steam showers have some pretty impressive statistics that will help you feel alright about your water and energy consumption. According to Orellana, steam showers use “about two gallons of water for a 20-minute steam session, whereas a 20-minute bath using a traditional whirlpool or soaking tub can use 80 gallons of water.” 

In addition, Orellana says steam showers use less water than a regular shower or bath, requiring less energy to heat. “That's why a home steam shower is a sustainable choice that can reduce your energy bills if you regularly take long showers or baths to unwind,” says Orellana.

While you might feel confident DIYing some or all of a traditional shower, steam showers are more complicated; it’s not something you should go alone. “This is also a project for which you definitely want an experienced plumbing contractor to avoid the mold issues that can arise from an improperly installed system,” says Gold. Since steam showers are uncommon, you might need to look around for the right pro. 

The same is true for design. It should account for installation specifics required for steam showers; not every designer will be familiar with the topic. You’ll also need space to accommodate the steam generator. 

Things like size, surface materials, and architectural features impact the cost of any shower. However, steam showers have additional costs, such as the steam head, generator, controls, and installation. 

"There is maintenance involved in keeping it running clean, more so than with a regular shower," says Gold. Certainly, all showers need to be cleaned and may require repairs or fixture replacements, but with a generator and other components—especially elements that aren't easy to troubleshoot or DIY—maintenance is a significant consideration. 

Steam showers might sound appealing, but before you go investing the resources in creating this at-home spa experience, really think about whether it fits your lifestyle. “Harried professionals and parents may imagine themselves enjoying a nightly interlude in the mist, while the reality of deadlines, kids, and other demands on their time means a standard shower is the norm and steam the exception,” says Gold. 

Gold cautions against self-prescribing a steam shower to address physical conditions. Before investing, consider checking in with your doctor. “If your interest in adding a steam shower is to address a physical condition, I definitely recommend speaking with your physician before proceeding,” says Gold. Your doctor may have advice on how to utilize a steam shower, but they may also have warnings to help protect you if it’s not great for your personal health.

close coupled toilet If you're adding a steam shower, take the opportunity to update the look of your shower by including upgrades and accessories to make it as comfortable and luxurious as possible. A shower seat is an excellent option, especially for enjoying a complete steam shower experience. If your shower lacks a spot for stashing personal care items, including soap, shampoo, or razors, install a shower niche for organized storage. If there's no room for a niche, a shower caddy is a good substitute. A new steam shower and upgraded shower space is also a great time to test out products and change up your personal care routine, so check out our editors' favorite finds.