Saunas · Explainer
Nobody publishes a breaker size for a custom infrared sauna, because there is not one. What the circuit actually depends on, who pays for it, and why it has to be settled before you approve a design rather than after.
Recovery Select Editorial3 min read
Search for the electrical requirements of a home infrared sauna and you get confident numbers. A 20-amp circuit. A 30. A dedicated 240-volt line.
Then you open the manufacturer’s own documentation and find no number at all.
The manufacturers are right and the articles are wrong. A boxed cabin with one fixed size can publish one figure. A sauna built to your room cannot, because the load follows decisions nobody has made yet — how much heater area the design carries, how the controls are set up, what else is on the circuit.
SaunaCloud says it outright on its product pages: project-specified, no universal breaker size.
That has three consequences, and they cost people money.
What surprises buyers isn’t the size of the circuit. It’s finding out that nobody in the transaction is going to install it.
The scope is usually written down. SaunaCloud’s is explicit: the shipment is cedar components, heaters, power and control hardware, Wi-Fi control, sauna hardware and documentation. Then, in their words, “a local installer or contractor assembles the sauna, and a licensed electrician completes the electrical connection.”
Design, fabrication and testing are theirs. Assembly and connection are yours, through trades you hire.
That’s normal for the category. But the number you’re comparing against other saunas is not the number you’ll spend. The real figure is the cabin, plus an installer, plus an electrician, plus whatever the electrician finds when they open your panel.
Here’s the sequencing trap.
Lead times for made-to-order saunas start at final design approval. SaunaCloud quotes 6–10 weeks for the Atlas and 7–11 for the Sierra, both counted from approval — not from order. The design phase sits in front of that clock.
So if you scope the electrics after approving the design, you’ve already started a build against a spec your electrician hasn’t seen.
Then they tell you the panel has no spare capacity, or the run is longer than anyone assumed, or the location needs a sub-panel. By that point your options are down to paying whatever it costs.
The cheap version of this project has the electrician in the conversation while the drawing can still change. Moving a sauna two feet on a drawing is free. Moving it after the panels are cut is not.
Not a product page. A load figure from the project documentation for your build: connected load in watts or amps, the voltage, and whether a dedicated circuit is required.
Everything after that is their job — conductor sizing, breaker selection, protection, permits, inspection.
Your job is making sure they’re working from the manufacturer’s document for your unit, not a number someone found online for a different sauna. Wrong in the safe direction wastes money. Wrong the other way is a fire risk. That’s why this is a licensed trade.
Ask the manufacturer: what is the connected load for the configuration we’re discussing, does it need a dedicated circuit, and when do I get that in writing?
Ask the electrician, before the design closes: does the panel have capacity, how far is the run and what does that cost, does this need a sub-panel, what do permitting and inspection add here?
Ask yourself: if the electrical quote comes back at twice what I assumed, does this still make sense? Better to know while the design is still a drawing.
This isn’t electrical advice, and nothing here replaces a licensed electrician looking at your panel and your run.
The point is narrower. No honest source will give you a breaker size for a custom sauna, because the number doesn’t exist until your build is specified — and the person who finds that out late is the one who pays for it.
Published September 20, 2026. We update guidance when products change, are discontinued, or when our view changes — and we say what changed.
Filed underinfrared, installation, electrical
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