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Description
The Mr. Steam MX5RB1X is a 24kW Max Series residential steam shower generator for 208V single-phase service, sized by Mr. Steam for steam rooms with an adjusted volume of 679 to 822 cubic feet. It is built with a stainless steel tank and a large, serviceable heating element, and it is assembled by Mr. Steam in Long Island City, New York. This model includes the factory-installed Express Steam option, which adds an Express Steam heater and thermostat to the tank for a pre-heat cycle, so steam is ready sooner than on the standard model.
Specifications (Mr. Steam)
- Model / part number: MX5RB1X
- Series: Mr. Steam Max Series (MX4R to MX6R), residential
- Output: 24kW
- Electrical: 208V, single phase, 116 A
- Recommended wire size: 1/0 AWG (90°C THHN copper, per Mr. Steam ampere chart)
- Steam room size: 679 to 822 cu ft adjusted room volume
- Express Steam: Yes, factory installed
- Water usage: 3.2 gallons (per Mr. Steam specification chart)
- Generator dimensions: 25-1/8" L x 20-3/4" H x 7-7/8" D (generator only, without AutoFlush or plumbing)
- Shipping weight: 67 lb
- Plumbing connections: 3/8" NPT water supply, 3/4" NPT steam outlet, 3/4" NPT safety valve, 1" NPT drain
- Control circuit: Built-in low-voltage 24V control, 60-minute countdown shutdown with 75-minute limiting backup
- Safety: ASME safety valve, electronic water-level control, full-port drain valve
- Materials: Stainless steel tank and cabinet
- Certification: cULus listed (per supplier specification)
- UPC: 767931944055
- Made in: United States (Long Island City, NY)
What you need to know before buying
- Hardwired 208V appliance: a licensed electrician must install it on a dedicated circuit breaker with a disconnect within sight of the generator, per the National Electrical Code and local code. A licensed plumber handles the water, steam and drain lines.
- A Mr. Steam control (iSteamX, TempoTouch, TempoFlex or iTempo) and a steamhead are required and sold separately. See steam shower generators and components.
- Size by steam room cubic feet and wall material, per Mr. Steam: start with length x width x height, add 50% for natural stone, marble, glass block or concrete, subtract 40% for acrylic or fiberglass, and add 15% for each foot of ceiling above 8 ft. This model covers 679 to 822 cu ft adjusted.
- Install upright on a solid, level surface (the Max series is not wall hung), within 60 ft of the steam room, in a ventilated space. Do not install inside a vanity, under the steam room bench, outdoors, or anywhere water could freeze. Mr. Steam recommends 18 in of service clearance on the left, 21 in above and 24 in in front.
- Optional Mr. Steam add-ons include AutoFlush, the Max Drip Pan (104402), ChromaSteam and AromaSteam. Max series generators are for residential use only.
Warranty
Mr. Steam limited lifetime warranty on the generator, including 2 years in-home, for residential use.
Returns
Returns accepted within 30 days of delivery for unused, uninstalled items in original sealed packaging. Return shipping is paid by the buyer, and a restocking fee of up to 15% may apply (up to 50% if packaging is missing or the seal is broken). Installed items are handled as manufacturer warranty claims.
Related
Steam shower generators, Mr. Steam
Install per the manufacturer's instructions by a licensed plumber and electrician.
Specifications
| Model / part number | MX5RB1X |
|---|---|
| Series | Mr. Steam Max Series (MX4R to MX6R), residential |
| Output | 24kW |
| Electrical | 208V, single phase, 116 A |
| Recommended wire size | 1/0 AWG (90°C THHN copper, per Mr. Steam ampere chart) |
| Steam room size | 679 to 822 cu ft adjusted room volume |
| Express Steam | Yes, factory installed |
| Water usage | 3.2 gallons (per Mr. Steam specification chart) |
| Generator dimensions | 25-1/8" L x 20-3/4" H x 7-7/8" D (generator only, without AutoFlush or plumbing) |
| Shipping weight | 67 lb |
| Plumbing connections | 3/8" NPT water supply, 3/4" NPT steam outlet, 3/4" NPT safety valve, 1" NPT drain |
| Control circuit | Built-in low-voltage 24V control, 60-minute countdown shutdown with 75-minute limiting backup |
| Safety | ASME safety valve, electronic water-level control, full-port drain valve |
| Materials | Stainless steel tank and cabinet |
| Certification | cULus listed (per supplier specification) |
| UPC | 767931944055 |
| Made in | United States (Long Island City, NY) |
Specifications from the manufacturer. Dimensions are approximate.
Shipping
We ship to the 48 contiguous U.S. states and Washington, DC. Your shipping cost is calculated at checkout and shown before you pay.
You will get an order confirmation right away and tracking by email when your order ships. Questions about timing for a specific item? Call (945) 280-3243 or email support@restoresuite.com before you order.
Delivery
Large items such as saunas, hot tubs and cold plunge tubs usually ship by freight. The carrier contacts you to schedule delivery. Please check the packaging and note any damage on the delivery receipt before you sign, then tell us within 48 hours so we can resolve it for you.
Before delivery day, measure doorways and hallways along the path to the install spot, and confirm the electrical requirement on the Specifications tab.
Warranty
Mr. Steam limited lifetime warranty on the generator, including 2 years in-home, for residential use.
Warranty coverage for this product is shown above or in the description. If anything arrives damaged or stops working, contact us with your order number and we will help you get it resolved.
Reviews
What delivery looks like
Why this one
24kW Max Series steam generator for 208V 1-phase service, sized for 679 to 822 cu ft steam rooms, with Express Steam.
- 24kW output, 208V single phase, 116 A
- Sized for 679 to 822 cu ft adjusted room volume
- Stainless steel tank with serviceable heating element
- Express Steam heater and thermostat factory installed
Key specs at a glance
The numbers to check before you order. Full details are on the Specifications tab.
- Electrical
- 208V, single phase, 116 A
- Recommended wire size
- 1/0 AWG (90°C THHN copper, per Mr. Steam ampere chart)
- Steam room size
- 679 to 822 cu ft adjusted room volume
- Generator dimensions
- 25-1/8" L x 20-3/4" H x 7-7/8" D (generator only, without AutoFlush or plumbing)
- Shipping weight
- 67 lb
Before you buy: what to know
Based on the manufacturer's specs, manuals and our research.
- Max series generators must be installed upright on a solid, level surface; Mr. Steam does not allow them to be hung on a wall.
- Plan the control, steamhead and wiring together: a licensed electrician and plumber are required.
- Confirm your adjusted room volume with Mr. Steam's sizing method before ordering, especially for stone or glass rooms.
Not sure this is the right fit? Ask us or call (945) 280-3243.
Compare Mr. Steam models
Swipe to compare 4 models
| Model |
 Mr. Steam Max Series 30kW Steam Shower Generator with Express Steam
$5,915.00 |
 Mr. Steam Max Series 30kW Steam Shower Generator
$5,565.00 |
 Mr. Steam Max Series 30kW Steam Shower Generator with Express Steam
$5,915.00 |
 Mr. Steam Max Series 30kW Steam Shower Generator
$5,565.00 |
|---|---|---|---|---|
| Electrical | 208V, single phase, 145 A | 208V, single phase, 145 A | 240V, single phase, 125 A | 240V, single phase, 125 A |
Mr. Steam Max Series 30kW Steam Shower Generator with Express Steam$5,915.00
- Electrical
- 208V, single phase, 145 A
Mr. Steam Max Series 30kW Steam Shower Generator$5,565.00
- Electrical
- 208V, single phase, 145 A
Mr. Steam Max Series 30kW Steam Shower Generator with Express Steam$5,915.00
- Electrical
- 240V, single phase, 125 A
Mr. Steam Max Series 30kW Steam Shower Generator$5,565.00
- Electrical
- 240V, single phase, 125 A
Common questions
What size steam room does this generator fit?
What electrical service does it need?
What else do I need to buy?
What does Express Steam do?
Choosing the right setup can be tricky. We are here to help.
Tell us your space, power and how you plan to use it, and we will help you compare models honestly, including whether this one is the right fit.
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