The Thermasol PROIII-1200 is a 24 kW PRO Series III residential steam generator rated for steam showers up to 1,200 cubic feet. It pairs with any Thermasol steam control — ThermaTouch, SignaTouch or MicroTouch — and a SteamVection or Legacy 3/4" (TSS) steam head (control and steam head sold separately). It draws 110 amps at 240V and fits rooms of 751–1,200 cubic feet with standard 8 ft ceilings — ideal for a closet, vanity, basement or climate-controlled attic up to 50 feet away.
| Model | PROIII-1200 |
|---|---|
| Power | 24 kW |
| Max steam shower size | 1,200 cu. ft. |
| Amperage | 110 A at 240V |
| Recommended room size | 751–1,200 cu. ft. (8 ft ceiling) |
| Water connection | 3/8" |
| Drain connection | 3/4" |
| Made in | USA |
| Dimensions | 13 15/16" W x 18 11/16" D x 11 15/16" H |
| Electrical | 208–240V single-phase, dedicated breaker required |
| Included | Stainless steel drain pan, SteamVection housing kit |
| Warranty | Lifetime – 2 years in-home parts & labor, lifetime at factory |
Multiply your shower's length x width x height to get its volume in cubic feet, then choose a generator rated at or above that number. Per Thermasol, wall materials do not change the generator size. For 9 ft ceilings, size up one model; for 10 ft ceilings, size up two (or contact us to confirm). Not sure? Send us your dimensions and we'll help you pick.
The generator can be installed up to 50 feet from the shower in a finished, climate-controlled space protected from the weather, with at least 6 inches of clearance on all sides. Keep it accessible for service — don't enclose it behind walls or inside a bench — and install it flat and level. Build the steam enclosure from non-porous, moisture-resistant materials such as porcelain or ceramic tile, tempered glass, and sealed grout (natural stone must be sealed regularly), with rust-resistant fixtures and moisture-safe seating such as teak. See the installation manual for complete requirements.
Art of Steam Co. is an authorized Thermasol reseller. Thermasol warranties apply only to products purchased from authorized resellers.
Questions about sizing, wiring, or compatibility? Contact the Art of Steam Co. team — we're happy to help.
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Yes, we offer price matching of fellow authorized dealers. For price match inquires, please email us a screenshot or quote to info@artofsteamco.com
We often have sales and discounts available. You can always reach out to us for more information if you are unable to find any information on the website.
We offer a 30 day return period for unopened and uninstalled items shipped via ground shipping. Items shipped via LTL such as sauna rooms are not able to be returned.
If an item you received is defective, you must first go through the manufacturer for a warranty replacement. You may then return the brand new replacement from the manufacturer to us for a refund if within 30 days of your initial shipment.
To see more on our shipping and return policies click here.
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Yes, simply select Truemed as your payment option at checkout on eligible products and use your FSA or HSA card as you would any other credit card. If you do not have sufficient HSA/FSA funds, you can split your payment between your credit card and HSA/FSA card.
You will see a statement underneath the "Add to Cart" button signifying it is eligible.
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