Redwood Outdoors
Classic Barrel Sauna – 6 Person
The heater in this kit
| Heater included | Yes |
|---|---|
| Model named by manufacturer | Harvia KIP 6kW |
| Brand stated | Harvia |
| Output stated | 6kW Harvia KIP; 240V, 30A |
| Heater bought separately | Not stated by manufacturer |
Full specifications for the named heater
Because this manufacturer names the exact model, its complete electrical and sizing data is known:
- Harvia KIP60B (KIP-60-B1) · 6 kW
Dimensions & capacity
| Type | barrel |
|---|---|
| Exterior dimensions | 71″ L × 72 ¾″ W × 76 ½″ H |
| Interior dimensions | Not stated by manufacturer |
| Interior volume | Not stated by manufacturerNot published. We do not compute a volume from the exterior dimensions — the two are not interchangeable once wall thickness, benches, and the heater envelope are accounted for. |
| Stated occupancy | 4 - 6 people depending on the seating arrangementThe manufacturer’s own figure, which is usually generous. |
| Indoor / outdoor rating | Not stated by manufacturer |
Construction
| Wood species | Heat-treated Hemlock |
|---|---|
| Construction | Not stated by manufacturer |
| Insulation | Not stated by manufacturer |
| Assembly requirements | "Easy Assembly Design for on-site assembly with manuals and videos"; all electrical heater wiring must be performed by a qualified licensed electrician; use copper wire with 90C insulation, not aluminum. |
Electrical, as published for the kit
| Kit circuit specification | 30AThis is the kit manufacturer’s figure for the assembly. It is a different quantity from the heater’s own current draw — do not treat one as correcting the other. |
|---|---|
| Kit voltage | 240V |
What this manufacturer does not publish
Each of these is a question worth asking before you order.
- interiorDimensions
- interiorVolumeFt3
- interiorVolumeStated
- construction
- insulation
- heaterRequiredSeparate
- indoorOutdoorRating
One documented source conflict
The manufacturer’s own sources disagree on the following. We show both values rather than choosing one — check the model’s current manual before you rely on either.
amperage
Source ARedwood: Harvia KIP 6kW → "Amps: 30A"; FAQ "Two-pole 30A breaker, 10/2 wire (use 8/2 if distance >90 ft)"View sourceElectrical-safety flag. These are different quantities (branch-circuit rating vs heater load) and must never be shown as competing "amp" values for the same model.
Transcription notes
Brand-level circuit table: https://www.redwoodoutdoors.com/pages/faqs-sauna-heater-electrical; kit contents/light FAQ: https://www.redwoodoutdoors.com/pages/faqs-sauna-design-dimensions. Upgrades: 8kW KIP, 8kW KIP Wi-Fi, 6/8kW Spirit Wi-Fi, 9kW Homecraft H-Series ±Wi-Fi. Redwood 30A circuit vs Harvia KIP60B 25.0 A load are different quantities, not competing values. Kit circuit figures are circuit requirements; they are not the heater load current.
Where to buy
Sold direct, not through affiliate retailers. We have not found a retailer for this model that runs an affiliate program, so this listing earns us nothing. It is here because the specifications are worth having.
Coverage here is not conditional on payment.
Sources for this page
Transcribed and checked . Manufacturers revise specifications without notice; the document above is authoritative, not this page.