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Sweaty Yeti Sauna Plunge 4 to 6 Person Outdoor Sauna and Cold Plunge Room

An 8 by 17 foot modular building with a 4 to 6 person stone sauna and a separate cold plunge room, $51,700 base on sweatyyetisauna.com on 2026-09-24.

Sweaty Yeti Sauna Plunge 8 by 17 foot modular building at dusk, shown with optional cedar siding and a metal roof, with the white cold plunge tub visible through the left window and the cedar sauna with its stone tower heater through the right window

More views

Cutaway render of the Sweaty Yeti Sauna Plunge layout: the sauna with its heater and benches, the plunge room with a white tub, and the shower zone with a triangle windowAlternate view
Brand render of the room layout. Options shown, including the outdoor shower and the triangle window, are paid extras. Image: Sweaty Yeti product render, sweatyyetisauna.com.
By Ryan · Founder
Published Sep 24, 2026 · 3 min read

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QUICK VERDICT

One 136 sq ft modular building holds a 4 to 6 person stone sauna and a separate cold plunge room, sold by Irontown Modular, a Utah company, at $51,700 before site work, hookups and permits.

Best for: A homeowner, resort or short-term rental owner with a level 8 by 17 foot site, ideally a gravel or concrete pad, a licensed electrician lined up for a 240V circuit, and the full balance ready within 10 days of the deposit.
Price: $51,700 · Verified: 2026-09-24
✓ Pricing Verified 2026-09-24
POSITIONING
ultra premium
Published 2026-09-24

One 136 sq ft modular building holds a 4 to 6 person stone sauna and a separate cold plunge room, sold by Irontown Modular, a Utah company, at $51,700 before site work, hookups and permits.

The Sauna Plunge is an 8 by 17 foot outdoor building sold by KEB Homes, LLC, a Utah company trading as Irontown Modular. A cedar-lined traditional sauna for 4 to 6 people sits at one end, a dedicated cold plunge room sits beside it, and an outdoor shower on the front deck is a paid option. Sweaty Yeti's affiliate content kit says there is nothing to assemble on site, while Our Process has local contractors connect the water and power. The base price was $51,700 on September 24, 2026, with a 10% deposit of $5,170 at checkout.

The owner's manual names a HUUM electric heater and UKU controller over stones you can ladle water onto, with a brand-stated typical heat-up of 30 to 45 minutes. The affiliate content kit names Finnleo heaters instead, and the features sheet reserves the right to substitute comparable materials without notice, so check which heater the contract lists. Heater kW and sauna temperature range are not published. Four carbon fiber infrared panels cost $4,500 extra. The manual says Plunge makes the cold plunge system and lists a Plunge Evolve Standard Chiller, but Sweaty Yeti publishes no tub model, water temperature range, capacity or chiller horsepower. The configurator includes one cold plunge at no added charge, while a brand floor plan labels the tub optional.

Site preparation is the buyer's job. The unit sits on level ground or a gravel or concrete pad, drainage is recommended, and its weight is not published. Power is 240V from a licensed electrician, and the amperage conflicts: 60 amp on the store's product page and in the About FAQ, 70 amp standard in the owner's manual. Water comes from a garden hose or a plumbed line. The roof carries a 30 lb PSF live load as standard, and a higher snow load can be engineered as an option that may cost more. In freezing weather, a unit without continuous heat needs its plumbing winterized.

The contract is where it gives ground. The KEB Homes Limited Warranty is available on request but its term is not published, and no return policy for the structure is published. The balance is due within 10 business days of the deposit per Our Process, or 10 days from purchase per the Terms, and construction starts only once it is paid or financing is funded. The Terms also set $250 per change order, $250 per workday of buyer delay, a clause allowing a price increase if material or labor costs rise more than 5% during construction, and mediation, then binding arbitration in Utah County. No third-party safety listing for the building is published.

It suits a buyer who wants sauna and plunge under one roof and can manage the site work. Sweaty Yeti's affiliate content kit says its sales so far have leaned toward RV resorts and short-term rental properties.

Best for

A homeowner, resort or short-term rental owner with a level 8 by 17 foot site, ideally a gravel or concrete pad, a licensed electrician lined up for a 240V circuit, and the full balance ready within 10 days of the deposit.

Skip if

You want a sauna only (Sweaty Yeti's 8 by 9 foot Sauna is $29,700), you rent or cannot place an 8 by 17 foot outdoor building on your land, or you need the warranty term in writing before a deposit that stops being refundable after 5 days.

Specifications

ModelSauna Plunge, SKU SaunaPlunge
TypeModular outdoor building with a traditional stone sauna and a separate cold plunge room
Footprint8 ft x 17 ft, 136 sq ft
Sauna capacity4 to 6 person
Sauna heaterHUUM STEEL electric heater with UKU digital controller per the owner's manual; the features page lists HUUM Steel or equal; the brand's affiliate content kit names Finnleo; the features sheet allows substitution of comparable materials without notice
Heater output and sauna temperature rangeNot published
Heat-up timeTypically 30 to 45 minutes, brand-stated; varies with outdoor conditions
Infrared option4 carbon fiber infrared panels, +$4,500; panel wattage not published
Cold plungeOne tub with chiller, system made by Plunge per the owner's manual, which lists a Plunge Evolve Standard Chiller; included at no added charge in the configurator, labelled optional on a brand floor plan
Cold plunge temperature range, capacity and chiller horsepowerNot published
Electrical240V, licensed electrician required; 60 amp per the store's product page and the About FAQ, 70 amp standard and 80 amp with the mini-split per the owner's manual
WaterGarden hose or plumbed line; exterior hose bibs for fill and drain
Floor drainageWaterproof sealed floor with drain; per the owner's manual, the floors are not sloped toward the drains
Framing2x4 walls with full sheathing, pressure-treated wood floor joists at 24 in on center, solid wood rafters
InsulationFiberglass batt, R-13 walls, R-30 ceiling, R-30 floor
Roof load30 lb PSF live load standard; a specific snow load can be engineered as an option that may cost more
Standard exteriorFiber cement board and batten siding, architectural asphalt shingles, sliding glass door with black frame, cedar deck
FoundationLevel ground, gravel or concrete pad per Our Process; the About FAQ recommends a concrete or gravel pad; drainage recommended; unit weight not published
Factory build timeAround 60 to 90 days per the About FAQ; the homepage says saunas are ready to enjoy in just a few weeks
Deposit10% at checkout ($5,170), fully refundable for 5 days
WarrantyKEB Homes Limited Warranty, transferable, available on request; term not published; claims not addressed until final payment
ReturnsNo return policy for the structure is published
CertificationNo third-party safety listing for the building published
FinancingGreenSky
SellerKEB Homes, LLC dba Irontown Modular, Spanish Fork, Utah
Pricing verified2026-09-24

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Frequently asked

Sweaty Yeti Sauna Plunge - buyer FAQ

How much does the Sweaty Yeti Sauna Plunge cost?

Sweaty Yeti listed it at $51,700 on September 24, 2026, and takes a $5,170 deposit when you order. Add-ons such as the $6,640 mini-split or the $4,500 infrared panels raise it, and taking the top choice in every group comes to $86,890 by our own sum of published prices. Crane or special equipment, site work, utility hookups, permits and sales tax are not included.

What electrical service does the Sweaty Yeti Sauna Plunge need?

A 240V circuit run by a licensed electrician. Sweaty Yeti's own documents disagree on amperage: the store's product page and the About FAQ say 60 amp, while the owner's manual table lists 70 amp for the standard unit and 80 amp with the mini-split option. Ask Sweaty Yeti to confirm the figure in writing before an electrician quotes the job.

Is the cold plunge included, and how cold does it get?

The store's configurator includes one cold plunge at no added charge on the $51,700 unit, though a brand floor plan marks the tub as optional. The owner's manual says Plunge makes the system and lists a Plunge Evolve Standard Chiller. Sweaty Yeti does not publish the water temperature range, the tub model, its capacity in gallons or the chiller's horsepower.

What warranty and return policy does Sweaty Yeti offer?

The Terms point to the KEB Homes Limited Warranty, which is transferable and available on request. Its length is not published on the site, in the Terms or in the owner's manual, and warranty claims are not addressed until final payment. No return policy for the building itself is published; the deposit is fully refundable for 5 days after receipt. Freeze damage from water left in the plumbing is excluded.

How long does a Sweaty Yeti take to build, and does it need a permit?

The About FAQ gives around 60 to 90 days of factory build time and installation in a day, while the homepage says saunas are ready to enjoy in just a few weeks. On permits, Our Process says the unit usually does not need a building permit but local plumbing or electrical permits may apply. The Terms make building permits and licenses the buyer's responsibility.

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