Kohler Steam Shower Generator Reviews (2024) | TOP Models!

We researched aspects like functionality, ease of use, versatility, and design. Kohler K-5529-NA Invigoration received the highest rating of all the generators my team has tested.

Kohler steam generators have similar characteristics because they’re made with reliable materials, they can fill your room with steams in under a minute, and they’re easy to clean. However, each model is best for a different purpose.

Read this article to find out which model is best for your needs. You can find out more about Kohler, its warranties, services, and price range, plus how you can install a Kohler shower generator.

At the end of this article, you’ll get a list of top features to consider before choosing a shower steam generator. Read along!

Best Models:

  • 1. K-5529-NA Invigoration Series – best for most bathroom sizes; best against corrosion
  • 2. K-5533-NA – best for medium to large baths
  • 3. K-1713-NA – best for people who want to keep the generator in a separate room outside their bath.
  • 4. K-5531-NA – best for relaxation
  • 5. K-5525-NA, 5 kW – best for small bathrooms
  • 6. K-5547 – best for extra-large baths and people with mobility problems
  • 7. K-5543-NA – best for large to extra-large bathrooms and people with poor circulation to the extremities

About the Company

The Kohler company has a reputation for devising functional and aesthetically-pleasing products. Their shower line features streamlined and intuitive controls for their fast-acting generators.

Kohler Logo

Shower generators produced by Kohler are in the moderate price range, depending on the kW used. Your budget needs to be a bit bigger if you add the steam generator control kit or the optional adapter steam shower kit.

Although Kohler is a reliable brand with a 3-year warranty for generators and a 5-year warranty for controls, it lacks the array of customizations and extra features you can get with high-end brands, like Steamist.

SUMMARY: Kohler is a reputable brand with quality, albeit middle-range products. Although it lacks the extra customizations you can find with more expensive products, Kohler offers functional and good looking models.

7 Kohler Steam Shower Generators in 2023

The models below cover different purposes. Although K-5529-NA is the best choice because it’s the most versatile, the other models address specific needs.

You can review all the pros and cons below, and make your choice depending on what each model is best for. That way, you can get all the info on the Kohler steam generators and avoid buyers’ regret.

1. KOHLER Invigoration K-5529-NA, 9 kW, Aluminum


The Kohler K-5529-NA Invigoration is my best choice because it works for most bathrooms, it’s quality, and is corrosion-proof.

Although I discuss the 9kW model, you can find K-5529-NA units in more kW, depending on how big your bathroom is.

The K-5529-NA keeps an even temperature because it’s built with insulated stainless steel. The unit is powerful enough to produce 240 cubic feet of steam at a constant pace thanks to Constant Steam Technology. So even if the temperature in your shower room fluctuates, the K-5529-NA won’t care.

Your steam bath is ready in a minute so you can enjoy a quick steam bath even when you didn’t plan for it. You can take as many baths as you like without worrying about corrosion of cleaning.

The Kohler finishes are corrosion-proof, and the Power Clean Technology ensures auto cleaning in safe conditions.

  • Various models
  • Constant temperature
  • Lots of enveloping steam
  • 1-minute steam bath
  • Corrosion-proof
  • Quick cleaning
  • Easy to install and easy to use
  • Affordable
  • For smaller bathrooms
  • Some users complain about their units not working upon installation, which requires replacement

Summary: The Kohler K-5529-NA is a safe and easy to use shower generator, with a streamlined, functional design. The unit produces lots of enveloping steam heads in under a minute, taking temperature fluctuations into account.


2. KOHLER K-5533-NA, 13kW

Kohler K5533

K-5533-NA is more expensive than K-5529-NA. This model is more powerful considering that it requires 13kW and that it covers a maximum volume of 447 cubic feet, for medium bathrooms.

The K-5533-NA also features Power Clean Technology, which requires you to push just one button for cleaning the generator. This technology is user-friendly as well as safe.

Just like the Invigoration, the K-5533-NA can produce enveloping steam in under a minute courtesy of the Fast-response technology.

This model works with the Kohler DTV steam adapter and system. You will need the K-5548-K1 DTV to work, as well as the K-5557 Invigoration control kit. Unfortunately, you need to purchase them separately.

  • Powerful
  • Easy to clean
  • Quick and effective steam
  • Easy installation
  • The K-5557 manual is very clear
  • Requires additional purchases

Summary: The K-5533-NA is a powerful model for medium to large baths. Although it’s an effective, functional model, you will need to purchase additional kits.


3. KOHLER K-1713-NA Fast-Response 15 kW Fast-Response


The K-1713-NA is best for luxury baths because it doesn’t ruin your décor and because you can fit it in bigger bathrooms. Don’t use this model in tiny baths, or you’ll get an Err5 as your bath heats over the max allowed temperature.

The K-1713-NA Fast-Response has similar features to the models above, such as the Fast-response technology for 1-minute steam showers and the Power Clean Technology for auto cleaning with just one touch.

The main difference is that this generator covers 500 cubic feet max, meaning it’s best for larger baths. Considering that it needs 15kW steam to work, it’s one of the most powerful steam generators in the Kohler line, but it uses more electricity.

Another advantage is that you can install it 25 feet away max from the control panel. If you don’t want to ruin your bathroom’s décor with a shower generator, stash the K-17-13-NA in a nearby closet!

  • Fills your bath quickly
  • Easy to clean
  • Powerful
  • For larger baths
  • You can install it 25-feet away
  • It uses a lot of electricity
  • You have to purchase the K-1647-PC Fast-Response Control Kit separately

Summary: The K-1713-NA is my choice for luxury bathrooms. This model is powerful and covers a large room almost immediately.


4. KOHLER K-5531-NA, 11 kW

KOHLER K-5531-NA, 11 kW

The K-5531-NA, 11 kW is best for sitting in the tub and enjoying the soothing comfort of a steam bath because it works quickly and you can add Shower oils to amplify your relaxation experience.

The K-5531-NA has the same Fast-response technology to create enveloping steams in 60 seconds, plus the Power Clean technology for auto one-touch cleaning.

The K-5531-NA works for medium to large bathrooms considering it can cover 317 cubic feet.

If you want a digital, one-touch operation for all your adjustments, you can add the optional Kohler DTV and showering system.

  • Comfortable
  • Relaxing
  • Quick
  • Easy to clean
  • For medium to large baths
  • Compatible with Kohler DTV
  • You’ll need to purchase the K-5557 control kit or the K-5548-K1 DTV and steam adapter kit

Summary: The K-5531-NA is best for cleansing, relaxing baths in medium bathrooms.


5. KOHLER K-5525-NA, 5 kW


The K-5525-NA, 5 kW is best for small bathrooms because it can only cover a volume of max 56 cubic feet. However, this shower generator will offer a healing experience, especially if you suffer from nasal congestion or muscle aches.

The Fast-response technology guarantees you have a steam bath ready in under a minute. The Power Clean Technology ensures you can auto clean the shower generator with one touch. If you need more one-touch operations and controls, purchase the Kohler DTV showering system.

  • Quick
  • Easy to clean
  • Neat design
  • Easy to mask
  • Just for tiny baths
  • Various users complain of leaking
  • You need the extra K-5557 control kit or the K-5548-K1 DTV adapter kit

Summary: The K-5525-NA is a tiny shower generator with a neat design that fits in small bathrooms.


6. KOHLER K-5547, 30 kW


The K-5547 uses a lot of electricity for its powerful engine. However, it can cover extra-large bathrooms considering its max volume rating is 1000 cubic feet.

This powerful and reliable steam generator is best for people who have joint mobility issues.

That’s because you can lay down in your tub or on a bench in your bathroom to let the enveloping steam ease your joint pain and improve your flexibility.

  • Fast-response technology for 1-minute steam baths
  • Power-clean technology for auto-cleaning
  • For extra-large baths
  • Works with Kohler DTV
  • You need the K-5558 Invigoration tandem control kit or K-5549-K1 DTV kit
  • Expensive

Summary: The K-5547 is a good addition for larger baths and people with muscle or bone pain. As you have a bigger bath, you can lay down in the tub comfortably to enjoy a longer healing steam bath for your joints.


7. KOHLER K-5543-NA, 22 kW

The K-5543-NA is best for large to extra-large bathrooms considering that it requires 22kW and that its max volume rating is 634 cubic feet.

Considering the size of your bath, I’d recommend this generator to people with poor circulation to the extremities.

Your larger bathroom allows you to move around while you’re breathing in the healing steam, to help your heart work faster.

  • Fast-response technology for 1-minute steam baths
  • Power-clean technology for auto-cleaning
  • For large bathrooms
  • Works with Kohler DTV
  • Expensive
  • You need the additional purchases


Summary: The K-5543-NA is a good choice for larger bathrooms. People with poor circulation to the extremities will see fast improvements with this shower generator.

SUMMARY: The K-5529-NA is the best item in this review, covering a wide array of needs. All the Kohler generators are good for different purposes and require different bathroom sizing. These models work with the KOHLER DTV system, they produce steam in less than 60 seconds, and they have auto-cleaning. Some models require additional kits, but they all come with a 3-year limited warranty.

How to Install a Kohler Steam Generator

A DIY steam shower installation is not recommended with a Kohler steam generator according to their official website.

The best news is that your local Kohler dealer will make all the arrangements, so you won’t have to bother with things like steam head installation.

How to Install

The appointed team of electricians will install your transfer switch and connect your generator to the switch and to the fuel source, like propane or natural gas.

Many people who tried installing a Kohler generator by themselves had serious difficulties, such as not being able to start the generator.

The electricians sent by your Kohler dealer will know how to reset or repair a troublesome generator, how to deal with error codes and troubleshooting problems, and how to read your water inlet screen.

SUMMARY: Although the installation costs about $2,000, Kohler takes care of everything, including contacting the team of expert electricians and handling the permits.

What Does a Steam Generator Do?

It is a large boiler used to generate steam for multiple purposes. Steam generators are best used when large quantities of steam need to be produced in a relatively short amount of time, like during a fire or emergency. The heat generated by the model is used to cool the building, keep the food warm, and create steam for other processes like home water heating or industrial cooling. It is also an ideal choice if your building is old and a well-insulated, and ventilated generator is an excellent choice for reducing the risk of fire.

It (sometimes called a steam plant) is a large boiler that delivers steam to several other boilers and boilers within a building. As of 2015, the global boiler market is witnessing a boom. Steam generators are being built to provide invigoration steam to metal and paper mills, chemical and fertilizers, pulp and paper, and glass and ceramics. Modern models use technology that removes all impurities to obtain maximum efficiency. Its insulation efficiency of it is very high, ensuring optimum efficiency. It has certain advantages over conventional boilers. They are typically configured to serve several boilers inside the building. The building thermal loads of the steam generators are typically low, which provides power-efficient solutions. They are normally sized to meet the steam demands of a building.

How Long Does a Steam Generator Last?

When will the steam generator for your vessel go out of date? Once installed, the average life of a steam generator is in the region of 20 years. When they’re due for replacement, you can expect to pay between £750-£1,000 for a new replacement model. This is a comprehensive guide to all aspects of the steam engine – we hope it helps you to see that the marine industry doesn’t have to be a source of anxiety or fear, thanks to a little knowledge.

In addition to this article, we’ve got three additional books that we’d encourage you to check out for further reading: Harbourmaster Volume One: The Modern Sea Harvester & Boat. There is something so inviting about the back roads and the lighthouses of Maine’s northeast coast – and yet, this isn’t where all the ships are! In this comprehensive book by Tom Duncan, you’ll discover how to navigate through an extraordinarily beautiful sea life.

What Size Steam Generator Do I Need?

There is no correct answer to this question. It depends on the requirements of your particular application. If you are planning to deploy a 30,000W system or larger one, you will most likely need a 250HP model. Most of the larger projects are 400HP or larger. For smaller projects, the 60HP generator will do just fine. Deciding on the type of model is important because you must be able to give the proper signal to adjust and control the pump. Without one, you will find yourself in the same situation as these homeowners.

Once a high-pressure hose comes out, it becomes very hard to control it. (It is my understanding that the folks from these two California homes ended up using a 100HP system to control the pressure on the hose). The static pressure (at the end of the tube/drum) in the tube will compress the water, so your pump needs to come.

How to Choose a Steam Shower Generator

Choose a steam bath generator by thinking like a plumber. The primary issues to consider are the quality of the materials, the length of the warranty, and the certifications.

How to Choose a Steam Shower Generator

These things tell you the generator is functional and resistant. After ensuring the quality of your model, analyze the following factors:

  • The total power required
  • How much space it covers (use an online calculator to assess the right generator size for your needs)
  • How much water it needs
  • How quickly it works
  • If the control panel is intuitive
  • If the generator is quiet
  • The optional features or systems you can acquire
  • The temperature
  • How easy you can make fast adjustments
  • How friendly customer support is

SUMMARY: Choose a steam generator by ensuring it’s a quality device with all the functionalities you need. While some people need high-tech control most of all, others can’t live without a fast-acting generator.

Where Should a Steam Shower Generator Be Installed?

This is a very important question to answer first. Even though they vary in their appearance, there are some constants that you should always consider. Square Base. Whether you have a pedestal or wall-mounted base, your Generator is likely going to be situated on a square base to prevent your unit from sinking into the floor. Portable. Although this is slightly less than a pedestal, it’s still pretty rare to find one that is a portable model. Square/L-Shaped Base. I’m not going to lie to you, portable bases have the lowest price point for Generators. So, it really makes the most sense to go with a more expensive and upscale portable model like a Uni-Turn Square Shower Generator.

Not Every Shower Is Built for Steam. Whether you have a top-of-the-line air-powered unit or a cheaper model, it’s still important to consider where you want the SS Generator to be located in your bathroom. Because Steam is a volatile substance, you will need to use an appropriately ventilated room in which the Generator can generate its steam. I personally wouldn’t recommend locating your Generator in the bathroom’s shower stall. First off, there’s the obvious fact that you’ll be getting soaking wet.

Frequently Asked Questions

Do You Need a Generator for a Steam Shower?

Yes, a generator is an essential component for a steam shower to function properly. Steam showers rely on a steam generator to produce the steam that creates a luxurious and relaxing bathing experience. The generator is responsible for heating water to a specific temperature and converting it into steam. It achieves this through a process called vaporization, which involves boiling the water and transforming it into steam molecules. The steam generator is typically installed outside the shower area, in a nearby utility or mechanical room, to ensure safety and prevent moisture buildup. It is connected to the shower through a steam line, which allows the steam to flow into the shower enclosure. The size and capacity of the generator depend on the dimensions of the shower and the desired steam output. Therefore, to enjoy the full benefits, including its therapeutic and rejuvenating effects, a generator is indispensable for generating and delivering soothing steam.

Does a Steam Shower Use a Lot of Electricity?

The amount of electricity used by a steam shower depends on different factors. However, it is classified as a moderate power consumer. The steam generator is the main culprit of energy consumption since it needs electricity to heat water and produce steam. Its power usage is usually measured in kilowatts (kW). The amount of electricity used by a steam generator depends on its size and capacity, as well as how long you use it for each session. Typically, a steam generator will use around 2 to 6 kilowatts per hour. It’s worth noting that the generator doesn’t run continuously during your whole steam shower; instead, it turns on and off to keep the steam temperature consistent. Keep in mind that the total amount of electricity used by each household will vary depending on individual usage patterns. Although it may require some electricity to function, its energy consumption is typically similar to other typical household appliances.

What is the Disadvantage of Steam Shower?

Despite the numerous advantages, it is important to be aware of the potential disadvantages associated with this bathing option. One notable drawback is the installation complexity and cost. Steam showers require specific equipment, such as a steam generator and steam head, which necessitates professional installation and may involve additional plumbing and electrical work. Another disadvantage is the need for regular maintenance. Proper upkeep, including periodic cleaning and descaling of the steam generator, is necessary to prevent mineral buildup and ensure optimal performance. Moreover, prolonged exposure to high humidity and moisture within the steam shower enclosure can potentially lead to issues such as mold or mildew growth if not adequately ventilated and maintained. Additionally, the installation requires sufficient space, which may not be feasible in smaller bathrooms or existing shower areas. It is also important to consider any health concerns or contraindications, as steam showers may not be suitable for individuals with certain medical conditions or sensitivities. Lastly, the energy consumption associated with operating a steam generator should be taken into account, as it may impact utility bills.

How Many CFM Do I Need for a Bathroom With Steam Shower?

Determining the appropriate Cubic Feet per Minute (CFM) ventilation for a bathroom equipped with a steam shower involves several critical considerations. Adequate ventilation is paramount to ensure the effective removal of excess moisture and prevent issues such as mold growth and structural damage. The CFM requirement hinges on the size of the bathroom, the steam shower’s specifications, and the specific ventilation needs of the space.

In general, a standard bathroom without a steam shower requires a ventilation rate of about 1 CFM per square foot of floor area. However, when a steam shower is introduced, the moisture output significantly increases due to steam generation. The Home Ventilating Institute (HVI) recommends adding an extra 50 CFM to the standard ventilation rate for each steam shower. This supplementary ventilation capacity is intended to manage the excess moisture generated during and after steam shower usage.

For instance, if the bathroom’s square footage is 100 square feet and features a steam shower, the calculation would be as follows: 100 CFM (standard) + 50 CFM (for steam shower) = 150 CFM total ventilation capacity.

It is important to note that other factors, such as bathroom design, insulation, and exterior climate, can influence the required CFM as well. Consulting with HVAC professionals or using online CFM calculators that consider these variables can provide a more precise estimation tailored to your specific circumstances.

In conclusion, a bathroom with a steam shower necessitates additional ventilation due to increased moisture levels. Combining the standard CFM per square foot with an additional 50 CFM per steam shower provides a guideline for determining the optimal ventilation capacity, safeguarding your bathroom against moisture-related issues.

How Close Does the Steam Generator Need to Be to the Shower?

The proximity of the steam generator to the shower is a critical factor in ensuring optimal performance and efficiency. Ideally, the steam generator should be installed in close proximity to the shower enclosure to minimize heat loss in the steam delivery system. The recommended distance is typically within 25 feet (7.6 meters) of the steam shower, although specific guidelines may vary depending on the manufacturer’s specifications and the design of the steam system.

Installing the steam generator in close proximity offers several advantages. First and foremost, it reduces the length of the steam delivery piping, minimizing the potential for heat dissipation along the way. This ensures that the steam reaching the shower retains its desired temperature and humidity levels, providing a more effective and enjoyable steam bathing experience.

Additionally, a shorter distance between the steam generator and the shower helps maintain the steam’s energy, allowing it to penetrate the shower enclosure more efficiently. This is particularly crucial for achieving the desired therapeutic and relaxation benefits associated with steam bathing.

While there is a general guideline for the proximity of the steam generator to the shower, it is essential to adhere to the manufacturer’s specific recommendations outlined in the installation manual. Manufacturers may have variations in their guidelines based on the capacity of the steam generator, the design of the steam delivery system, and other technical considerations.

Furthermore, proper installation by a qualified professional is crucial to ensure that the steam generator operates safely and efficiently. This includes compliance with local building codes and regulations, appropriate ventilation, and correct electrical and plumbing connections.

In conclusion, maintaining a close proximity, ideally within 25 feet, between the steam generator and the shower is recommended to optimize heat retention and ensure an effective and enjoyable steam bathing experience. Adhering to manufacturer specifications and professional installation practices is essential for achieving the desired results and ensuring the longevity of the steam system.

How to Fix Error 5 Kohler Steam Generator?

Experiencing Error 5 on your Kohler steam generator can be frustrating, but with a systematic approach, you can diagnose and resolve this issue efficiently. Error 5 typically indicates a problem with the water supply to the steam generator. Below are detailed steps to troubleshoot and fix this error.

1. Verify Water Supply

The first step is to ensure that your steam generator is receiving an adequate water supply:

Check the water inlet valve: Ensure the valve supplying water to the steam generator is fully open.
Inspect the water line: Look for any kinks, blockages, or leaks in the water supply line. Any obstruction can reduce the water flow to the generator.

2. Clean the Water Inlet Filter
A clogged water inlet filter can restrict water flow and trigger Error 5:

Turn off the water supply: Before cleaning, ensure the water supply to the steam generator is turned off.
Remove the filter: The filter is typically located at the water inlet connection. Remove it carefully.
Clean the filter: Rinse the filter under running water to remove any debris. If necessary, use a small brush to dislodge any stubborn particles.
Reinstall the filter: Once clean, place the filter back and secure it properly.

3. Inspect and Test Solenoid Valve
The solenoid valve controls the water flow into the steam generator. If it’s malfunctioning, it can cause Error 5:

Check electrical connections: Ensure that the solenoid valve is receiving power. Look for loose or damaged wires.
Test the valve operation: Manually activate the valve to see if it opens and closes correctly. If the valve is defective, it may need replacement.

4. Check the Water Level Sensor
The water level sensor ensures the steam generator has the correct amount of water:

Inspect the sensor for debris: Mineral buildup can interfere with sensor operation. Clean any visible deposits.
Test the sensor: Use a multimeter to check if the sensor is functioning correctly. Replace the sensor if it’s faulty.

5. Reset the System
Sometimes a system reset can clear the error:

Power cycle the steam generator: Turn off the power to the unit, wait for a few minutes, and then turn it back on. This can sometimes reset the error code.

6. Consult the User Manual
If the above steps do not resolve the issue, refer to the Kohler steam generator user manual for specific troubleshooting advice related to your model.

7. Contact Professional Support
If all else fails, it may be necessary to contact Kohler customer support or a professional technician. Persistent Error 5 issues can sometimes indicate a deeper mechanical or electrical problem that requires expert attention.

By following these steps systematically, you can effectively address Error 5 on your Kohler steam generator, ensuring a smooth and reliable steam bath experience.

Final Words on Kohler Steam Generators

Kohler retails reliable shower generators with sleek designs. Whatever model you settle on, remember that Kohler allows an easy three-step buying process.

3 Year WarrantyAnother advantage is the optional DTV upgrade that allows precise temperature control, music, and LED lights.

The unique digital functionality is safe for kids because you can cap the max water temperature, but you can also pause your shower, set a timer, and use less water.

On the downside, you get no other upgrades and a limited 3-year warranty.

This warranty covers units produced after September 2001 and installed in North America.

Kohler covers manufacturing defects, but not defects caused by accidents or improper use. Kohler doesn’t cover the labor, removal, or installation costs of the parts.

The Kohler generators are in the medium-price range. You can get them from the Kohler website, trustworthy dealers, or websites like Amazon. Always make sure the warranty is valid upon purchase if you get this generator from a third party.

Which model will you get, though?

  • The Kohler K-5529-NA Invigoration is my best choice because it works for most bathrooms, it’s quality and is corrosion-proof.
  • The K-5533-NA is a powerful model for medium to large baths.
  • The K-1713-NA is best for people who want to keep the generator in a separate room outside their bath.
  • The K-5531-NA, 11 kW is best for relaxation.
  • The K-5525-NA, 5 kW is best for small bathrooms.
  • The K-5547 is a powerful 30 kW best for extra-large baths and people with mobility problems.
  • The K-5543-NA is best for large to extra-large bathrooms and people with poor circulation to the extremities.

Take advantage of the Kohler features such as a 1-minute steam bath, easy cleaning, and optional DTV, and get your Kohler generator now.


If you want the safest, most reliable unit, the Kohler brand is what you need.