The Indoor Traditional Sauna: What It Takes to Put Real Heat in Your Home
A stove, a pile of stones and 180 degrees of dry heat. Here is what a home traditional sauna actually needs — the circuit, the space, the siting rules — before you choose a size.
Most of the home saunas sold online are infrared cabins: they plug into a wall outlet, warm you with panels and run in the 120s and 130s Fahrenheit. A traditional sauna is a different machine. An electric stove heats a basket of stones, the air in the room climbs to around 180°F, and a ladle of water on the stones sends a wave of steam — the löyly — across the benches. If that is the experience you are after, nothing else quite replaces it.
It also asks more of your house. This guide walks through what an indoor traditional sauna really needs, using the manufacturer's published specifications for the eight indoor models we sell, so you can tell early whether one will work where you want it.
Traditional vs infrared, in one table
If you are still deciding between the two, our longer infrared vs traditional comparison goes deeper. The short version, from the specifications on the saunas we carry:
| Traditional (electric stove) | Far / full-spectrum infrared | |
|---|---|---|
| Heat source | 6kW or 8kW stove heating sauna stones | Carbon or ceramic panels |
| Listed ideal temperature | About 170–185°F | About 118–132°F (full spectrum) |
| Steam | Yes — bucket, ladle and stones included | No |
| Electrical | Dedicated 240V circuit + separate 120V | Many smaller cabins use a standard 120V outlet |
| Our indoor range | $6,099–$8,599 | From $1,499 |
Temperatures are the manufacturer's listed ideal ranges. Not every infrared cabin is plug-in — check the electrical line on the specific product.
The single question that rules an indoor traditional sauna in or out is not space or budget. It is whether your panel can give it a 240-volt circuit.
The electrical reality: 240 volts, and an electrician
Every indoor traditional model we sell has the same shape of requirement, and it is the part buyers most often underestimate:
6kW stove models
- 240V / 30A dedicated circuit for the stove
- Plus 120V / 15A for lights and music
- Sundsvall, Hanko, Andermatt
8kW stove models
- 240V / 40A dedicated circuit for the stove
- Plus 120V / 15A for lights and music
- Copenhagen, Forssa, Engelberg, Kuusamo, Osla
The manufacturer's instruction on every one of these is to consult a certified electrician, and we would say the same. Have one look at your panel before you order: whether there is capacity for a new 30- or 40-amp breaker, and how far the run is from the panel to the spot you have in mind. That visit answers the feasibility question for the price of a quote. If a 240V circuit turns out to be impractical, a plug-in infrared cabin is the realistic alternative — our guide to plug-and-play vs hardwired saunas explains the trade-off.
Running a stove at these temperatures uses real electricity. Rather than quote a generic figure, use our sauna running cost calculator with your own rate and session habits.
Sizing: the eight indoor models, by footprint
Measure the space first, then pick from the models that fit it. All eight are cedar-lined cabins with a tempered glass door, sold for indoor or covered exterior use.
| Model | Capacity | Outside W × D × H | Stove / circuit | Price |
|---|---|---|---|---|
| Sundsvall | 2 | 60″ × 46″ × 83″ | 6kW · 30A | $6,099 |
| Hanko | 2 | 64″ × 48″ × 78″ | 6kW · 30A | $6,099 |
| Andermatt | 3 | 61″ × 50″ × 75″ | 6kW · 30A | $6,599 |
| Copenhagen | 3 | 79″ × 59″ × 83″ | 8kW · 40A | $7,099 |
| Forssa | 3 | 75″ × 48″ × 78″ | 8kW · 40A | $7,099 |
| Engelberg | 6 | 61″ × 70″ × 75″ | 8kW · 40A | $7,599 |
| Kuusamo | 6 | 77″ × 67″ × 82″ | 8kW · 40A | $8,599 |
| Osla | 6 | 79″ × 72″ × 83″ | 8kW · 40A | $8,599 |
Capacity is the figure in each model's specification list; two product names (Hanko, Forssa) carry a larger range, so we show the spec figure. Prices and specifications on the product page are authoritative — confirm there before ordering.
Two practical notes on reading that table. First, capacity numbers assume people sitting close; if two adults want to stretch out, look one size up. Second, height matters indoors: most of these stand 75–83 inches tall, so check a basement ceiling, a soffit or a sloped attic wall before you fall for a model. The traditional sauna collection has the full specification list for each.
Where it can go — and the warranty's weather rule
These cabins are specified for indoor use or covered exterior use. The warranty text is unusually specific about what "covered" means, and it is worth reading before you plan a garage or porch installation:
What the warranty text says about siting
- Outdoors, the sauna must be protected by a structure that includes a waterproof roof.
- When it is placed outdoors and not in use, a waterproof cover must be used or the warranty becomes void.
- Damage from direct exposure to rain, snow, sun, wind or extreme temperatures is not covered.
- Placement on non-approved surfaces is listed among the conditions that void cover — follow the manual's installation instructions for the floor.
Weight is the other siting question. Assembled weights on the indoor models run from about 400 lb (Andermatt) to 850 lb (Kuusamo), before people are inside, so a level, solid floor is non-negotiable. If you want a sauna in the open yard rather than under a roof, you want a model built for outdoor use — our barrel sauna buying guide covers that side of the range.
What you are actually buying: the warranty, read in full
Golden Designs headlines its cover as a Limited Lifetime Warranty on the sauna room. That phrase deserves a careful read rather than a skim, because the full text on the product page sets real conditions:
The stove is separate
The warranty excludes the stove, which is covered by its own manufacturer's warranty.
Parts, not labour
Cover is for parts. You prepay shipping on any part returned for warranty service.
Original owner, original site
It applies to the original purchaser at the original installation site, and ends on transfer or relocation.
Terms vary by model
On some models the fine print defines the term more narrowly — for example 5 years on the wood structure and control panel. Check the exact model.
None of that is unusual for the category, but it changes how you should plan. If you might move house within a few years, the non-transferable, ends-on-relocation terms matter. And because the text also treats minor surface cracks in the wood as normal behaviour rather than a defect, it helps to know that going in.
Delivery and assembly
An indoor traditional sauna arrives as freight, flat-packed across roughly six to nine boxes depending on the model, and you assemble it where it will stand. Plan the route from the curb to the room — stairs, doorways and turns — and read our freight delivery guide so you know how to inspect the shipment before you sign. The electrician's work comes after assembly, so line up both.
Before you order — the short list
- Get an electrician's opinion on a dedicated 240V circuit (30A or 40A) plus a 120V supply at the exact spot.
- Measure width, depth and ceiling height, and the delivery route to the room.
- Confirm the floor is level and can take several hundred pounds.
- If it is not fully indoors, confirm a structure with a waterproof roof, and plan for a cover.
- Read the warranty tab on the model you choose, including what it says about the stove.
A traditional sauna is a wonderful thing to have at home, and a demanding one to install. If you describe your space and your panel to us, we will tell you honestly which model fits — or whether an infrared cabin makes more sense.
The Iridescent Home Team
We are an authorized dealer for Golden Designs, Dynamic and Maxxus saunas, and we publish the manufacturer's own specifications on every product page. Deciding between two models? Call (307) 201-4597, 9am–5pm MT.
Traditional saunas, fully specified
Dimensions, stove size, circuit requirements and the full warranty text are published on every model — so you can check the electrical before anything goes in a cart.
Questions? (307) 201-4597 · 9am–5pm MT
Indoor traditional sauna FAQ
Does an indoor traditional sauna need 240V?
How hot does it get compared to infrared?
Can it go in a garage or outside?
What warranty comes with it?
What size do I need?
This article is general information, not medical advice. High-heat bathing is not suitable for everyone — talk to your doctor before using a sauna if you are pregnant, have a heart condition or low blood pressure, or take medication that affects heat tolerance. Specifications, temperatures, electrical requirements and warranty terms above are the manufacturer's published figures for the models we sell and vary by model; the product page is authoritative. All electrical work must be carried out by a licensed electrician to local code. Call (307) 201-4597 with any question before you order.