Mr. Steam MS Series 7.5kW Steam Shower Generator with Express Steam, 208V 1-Phase, up to 161 cu ft (MS225RB1X)

The Mr. Steam MS225RB1X is a 7.5kW, 208V single-phase MS Series steam shower generator for residential steam rooms up to 161 cubic feet of adjusted room volume. This model has factory-installed Express Steam: a low-power heating element and thermostat keep the water in the tank warm, so steam comes up quicker. It is built with a stainless steel tank and installs out of sight, up to 60 feet from the steam room, in a closet, vanity cabinet, heated attic or basement.

Specifications (Mr. Steam)

• Brand: Mr. Steam
• Model / part number: MS225RB1X
• UPC: 767931942730
• Series: MS Series (MS90R to MS400R)
• Output: 7.5kW
• Max adjusted room volume: 161 cu ft
• Voltage / phase: 208V, 1-phase
• Amps: 36A
• Wire size (Mr. Steam chart): 8 AWG copper, 90°C THHN minimum
• Express Steam: Yes, factory installed
• Water usage: 1.0 gal per 20 minutes of operation
• Generator dimensions: 14 1/2 in L x 14 3/4 in H x 6 3/4 in D
• Shipping weight: 27 lb (generator only)
• Connections: 3/8 in NPT water supply, 3/4 in NPT steam outlet, 3/4 in NPT safety valve, 1/2 in NPT drain
• Safety: 60-minute countdown shutdown with 75-minute backup, low-voltage 24V control circuit, ASME safety valve
• Clearance: Zero clearance to combustible surfaces
• Materials: Stainless steel tank and cabinet
• Certification: cULus listed, CE approved

What you need to know before buying

• A licensed electrician must hardwire the generator on a dedicated 208V single-phase circuit with its own breaker and a disconnect within sight of the generator. Mr. Steam lists 36A for this model.
• A licensed plumber must connect the water supply, steam line, safety valve and drain.
• A Mr. Steam control and a steamhead are required and sold separately. See steam shower generators. All MS generators work with all Mr. Steam controls, including iSteam X, iTempo, TempoFlex and TempoTouch.
• Size by the steam room's cubic feet and wall material, per Mr. Steam: measure length x width x height, add 50% for natural stone, marble, glass block or concrete, add 0% for ceramic or porcelain tile on cement board, subtract 40% for acrylic or fiberglass, and add 15% for each foot of ceiling above 8 feet (10 feet max). This model covers up to 161 cu ft adjusted.
• Install indoors, upright, on a solid level surface or wall mounted, within 60 feet of the steam room. Do not install inside the steam room, outdoors or anywhere water could freeze.
• Optional add-ons include the Mr. Steam 103867 drip pan, AutoFlush, AromaSteam steamhead, ChromaX lighting and AudioX.

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.

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.

Full shipping policy

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.

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.

How warranty support works · Returns policy