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A home infrared sauna is part furniture, part electrical project, part small renovation. Most of the surprises people hit, like a circuit that cannot handle the heater or a room that is a few inches too short, are easy to avoid if you plan in the right order. Here is a practical checklist from first idea to first session.
1. Choose the spot
Indoor options include a spare room, basement corner, garage or large bathroom. Outdoors you need a level, drainable base and a unit built for weather. Whatever you pick, check:
- Floor space. A common minimum interior is about 4 × 4 ft for one person and 5 × 5 ft for two.
- Ceiling height. Plan for roughly 7–8 ft of room height. A one-person unit like SaunaCloud's Atlas One example stands 84" (7 ft) tall outside.
- Floor strength. Solid-wood saunas are heavy; the Atlas One example weighs about 725 lbs before anyone sits in it.
- Access. Panels arrive by freight. Measure doors, stairs and turns on the way to the room.
- Ventilation and moisture. Avoid spots that flood or stay damp; water damage is a common warranty exclusion.
2. Sort out electrical early
This is the step that delays most projects. Infrared saunas need a dedicated circuit installed by a licensed electrician:
- Small one-person units may run on a 120V/20A dedicated circuit.
- Larger saunas typically need 240V on a 30A or 50A dedicated circuit, often hardwired rather than plugged in.
Get the exact requirement from the manufacturer's drawing, then ask your electrician whether your panel has capacity. Budget around $200–$800 for the hookup, more if your panel needs upgrading.
3. Pick prefab or custom
| Budget online unit | Prefab cabin | Custom build | |
|---|---|---|---|
| Typical price | ~$1,500 | $2,000–$5,000 | $6,000–$17,000 installed |
| Fit | Fixed sizes | Fixed sizes | Built to your room |
| Setup | DIY | DIY or handyman | Contractor + electrician |
| Timeline | Days | Days to weeks | 8–12 weeks |
Ranges are from SaunaCloud's buying guide, which also estimates a 3–5 year average lifespan for prefab units. Treat that as one maker's view and compare warranties side by side.
4. Decide on the features that matter to you
- Heater type and EMF. If low EMF matters to you, ask for third-party test results of the complete sauna at the seated position, not just a single panel. "Low EMF" is not a regulated term.
- Red light. Some saunas add red (around 660 nm) and near-infrared (around 850 nm) LEDs. Check whether the light system is covered by the warranty; on some builds it is a free extra with no coverage.
- Wood. Look for solid wood rather than veneer or particle board on the inside.
- Glass. On custom builds you may supply the glass door and windows yourself, so budget for them.
5. Build a realistic budget
- Sauna or kit: $1,500–$15,000+ depending on type
- Shipping/freight: can be significant (SaunaCloud charges a flat $999)
- Electrician: $200–$800+
- Contractor assembly (custom): $500–$2,000
- Glass door, flooring, lighting, permits where required
- Running cost: SaunaCloud estimates about $3.60–$7.20 a month for daily 30-minute sessions in a two-person unit
6. Read the warranty and return terms
Before paying a deposit, check: how many years the heaters are covered, what is excluded (wood, lights and labour are common exclusions), and whether you can return or cancel. Custom saunas are usually final sale once ordered.
7. Plan the timeline
- Measure the room and confirm electrical capacity.
- Request designs and quotes (custom builders often reply within a couple of days).
- Book the electrician and contractor while the unit is in production.
- Inspect the delivery carefully and note any damage before signing.
- Assemble, connect, and run the first heat-up exactly as the manual says.
Where to start
Still deciding between a heated cabin and a smaller light-based setup? Our infrared sauna vs red light therapy panel comparison explains the different mechanisms, space needs, running costs, and buying criteria.
If you have a dedicated space and want something built to fit it, request a free design and quote from SaunaCloud (paid link) and compare it with one or two prefab options. For a closer look at what SaunaCloud offers, read our SaunaCloud models, costs and warranty guide.
Not ready for a full sauna? Red light also comes in smaller formats; see our comparison of a red light belt vs an LED face mask.
About this article: BeautyTech Hub earns a commission on purchases made through the SaunaCloud links above. Figures come from SaunaCloud's published buyer guides as of October 2026; local costs vary, so get quotes for your area.
