Buying Guides
Best Indoor Sauna Kits (2025)
Updated January 2025 · 9 min read
Indoor saunas split into two very different categories: plug-in infrared units that go anywhere, and traditional steam saunas that need dedicated space and electrical work. Knowing which one you actually want before you buy saves a lot of frustration.
Advertiser Disclosure
Infrared vs Traditional: Pick First
Infrared saunas run cooler (120-140°F), plug into any outlet, and are ready in 15 minutes. Traditional saunas run hotter (160-195°F), need 240V electrical, and let you add steam with water on the rocks. They're genuinely different experiences. Decide which you want before comparing models.
Top Picks
Sun Home Equinox 2-Person Full-Spectrum Infrared
Plug-in or hardwired · Premium build
For buyers who want a finished, premium indoor infrared cabin rather than a budget plug-in or a traditional cedar kit, the Equinox is the strongest pick. Full-spectrum infrared (near, mid, far), integrated chromotherapy, and Sun Home's wellness-focused fit and finish. It runs at infrared temperatures (around 140 °F), so sessions are longer and more sustainable than a 180 °F traditional sauna, but if you want rocks and löyly, you want a traditional kit instead.
BSP use at checkout 
Sun Home Eclipse 2-Person Red Light Infrared
Combines full-spectrum infrared with integrated red light therapy panels
The Eclipse is the right call if you specifically want a sauna that pairs infrared heat with integrated red light panels in a single cabin rather than buying them separately. Premium build, full-spectrum infrared, and red-light wavelengths typically used for skin and recovery routines. As with any wellness product, we don't make medical claims here, do your own research and talk to your doctor about what red light therapy can and cannot do.
BSP use at checkout Dynamic Saunas Barcelona 1-2 Person
Plug-in 120V · Canadian Hemlock
The most reviewed plug-in infrared sauna in this price range. Six low-EMF carbon heating panels, Bluetooth audio, chromotherapy lighting, and a Canadian hemlock interior. Heats to 140°F in about 15 minutes. Fits in most spare bedrooms, basements, or large closets. Assembles in about an hour with basic tools, no electrician needed.
Pros
- Standard 120V outlet
- No installation costs
- Ready in 15 minutes
- Moves if you relocate
Cons
- Max 140°F (not traditional temps)
- No steam option
- Snug for two people
Almost Heaven 6-Person Indoor Kit
Requires 240V · Canadian Red Cedar
Almost Heaven's indoor kits are pre-cut cedar panels that assemble into a freestanding sauna room you can place in a basement or large room. The 6-person is the most popular size for home use, giving you real space to lie down, stretch out, or use with a couple of guests. Pair it with a Harvia KIP heater for a complete traditional setup.
Pros
- Full traditional experience
- Add steam with water on rocks
- Real cedar smell and feel
- Proven brand, good support
Cons
- Needs 240V dedicated circuit
- Heater sold separately
- Full day assembly
SereneLife Portable Sauna Tent
Plug-in 120V · Steam-Based
A full-body sauna tent you sit inside with your head out. Not infrared, it uses steam from a small generator. The head-out design is more comfortable for people who find enclosed saunas claustrophobic, and the price makes it an easy first step before committing to a permanent unit. Most reviewed portable sauna in the category.
Pros
- Under $150
- Head stays out
- Setup in minutes
- Stores in a bag
Cons
- Steam not infrared
- Flimsy long-term
- Limited to one person
What to Know Before You Buy
Space requirements
A 1-2 person infrared unit needs roughly 4x4 feet of floor space plus a few inches of clearance on all sides. A 4-person traditional kit needs about 5x6 feet minimum. Measure your space before buying, including ceiling height (most kits need 7 feet minimum).
Electrical requirements
Infrared saunas in the 1-2 person range run on standard 120V, 15-20A circuits. Most homes have these available in any room. Traditional heater saunas need a dedicated 240V circuit, similar to an electric dryer or range. Budget $200-500 for an electrician to run one if you don't already have it.
Ventilation
Plug-in infrared saunas don't require dedicated ventilation. Traditional indoor saunas need a fresh air intake (low, near or behind the heater) and an exhaust vent (low on the opposite wall). Without proper ventilation, moisture builds up and damages the wood and surrounding space over time.
FAQ
What is the best indoor sauna kit?
Dynamic Saunas Barcelona for plug-in infrared convenience. Almost Heaven 6-person indoor kit for a full traditional build. Both are well-reviewed with strong warranty support.
How much does an indoor sauna kit cost?
Plug-in infrared: $800 to $1,500. Traditional pre-cut kits: $2,000 to $5,000 before the heater. Full installed build: $4,000 to $10,000 depending on size and finish.
Do indoor saunas need special electrical?
Infrared plug-in models run on standard 120V. Traditional heaters need a dedicated 240V circuit and an electrician if you don't have one available.