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Haven & Plunge

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Sauna Heater Controls: Dial, Digital, or Wi-Fi?

Illustrative photo of an outdoor sauna, not the exact Redwood Outdoors model

Illustrative photo of this product type, not the exact Redwood Outdoors model. Photo: Unsplash.

Redwood Outdoors

Barrel Outdoor Sauna (6-Person)

A 4-6 person heat-treated Hemlock barrel sauna that ships with a 6kW Harvia heater, rocks, and backrest included.

Capacity
4-6 people
Installation
outdoor
Dimensions
Exterior: 71"L x 72¾"W x 76½"H
Power
120V for lighting; 240V for the included heater, professional installation required

We may earn a commission if you purchase through this link, at no extra cost to you. Price and availability are set by Redwood Outdoors and subject to change.Information last checked September 12, 2026.

Barrel Outdoor Sauna (6-Person)

$6,299

Check Current Price

Who it may suit

  • Buyers who want the heater and accessories bundled rather than sourced separately
  • Groups wanting genuine 6-person barrel capacity

Key Specifications

Capacity
4-6 people (arrangement dependent)
Exterior Dimensions
71"L x 72¾"W x 76½"H
Weight
900 lbs
Wood
Heat-treated Hemlock, responsibly sourced from Canadian forests
Heater
6kW Harvia KIP included (8kW/9kW/Wi-Fi upgrades available)
Warranty
1-year on structure; Harvia heater 1-year element, 5-year other parts

Key Features

  • 6kW Harvia heater, backrest, sauna rocks, tempered glass door, light fixture, and shingles all included
  • Heat-treated Hemlock construction from responsibly managed forests
  • Upgrade path to 8kW, 9kW, or Wi-Fi-controlled heater options

Installation

Outdoor installation; professional electrician required for the 240V heater circuit

Warranty

Warranty terms: check manufacturer.

What the listing said when we checked it on Sep 12, 2026: 1-year limited warranty on the sauna structure; Harvia heater warranty separately covers 1 year on elements, 5 years on other components

Pros

  • + Heater and all core accessories included in the base price, unlike most barrel saunas that sell these separately
  • + Genuine 4-6 person capacity from a single barrel design
  • + Clear, itemized warranty split between structure and heater components

Cons

  • − 1-year structural warranty is shorter than several competitors' multi-year terms
  • − Was showing out of stock at time of research — check current availability
  • − Still requires professional electrician installation for the 240V heater circuit

Our Take on the Barrel Outdoor Sauna (6-Person)

By

Short answer: this Redwood Outdoors barrel seats 4-6 and ships with a 6kW Harvia heater, rocks, backrest, light, and shingles for $6,299. It is the most complete package among our barrels. The weak points are a 1-year structural warranty and stock, since it was sold out when we researched it.

Is 6kW enough for 4-6 people?

The listing offers upgrades to 8kW or 9kW, which tells you 6kW is the entry option. Our data has only exterior dimensions (71” long, 72¾” wide, 76½” tall), so I can’t give you the room volume. If you live in a cold climate or plan to use it in winter, ask the dealer whether they recommend the 8kW upgrade and what it costs.

A 6kW heater draws 25A at 240V. An 8kW heater draws about 33.3A and needs a 40A circuit. Decide on the heater before the electrician sizes the cable, because upgrading later means rewiring.

Where does it go?

The footprint is about 36 sq ft and the weight is 900 lbs. That is lighter than the other barrels whose weight we have, which makes moving the crates easier. The lighting runs on 120V and the heater on 240V, and the listing requires professional installation for the heater circuit.

Run the numbers on the warranty

The structure is covered for 1 year. The Harvia heater has 1 year on the elements and 5 years on other parts. An outdoor wood structure shows its problems over several seasons, and 1 year covers only the first. Inspect it closely on delivery and again before the year ends.

You get, you give up

You get heat-treated Hemlock and every core accessory in the box. You give up warranty length against Almost Heaven’s limited lifetime terms.

How it compares

The Almost Heaven Grandview costs $59 more, includes a heater, and carries a limited lifetime warranty. That is the closer call. The price here comes from Redwood Outdoors, and our button goes to Redwood Outdoors’ product page.

Bottom line: a complete kit with a short warranty. See the Traditional Sauna Buying Guide.

Not medical advice.This page is general product information. Heat and cold exposure aren't safe for everyone. Talk to a physician before starting a sauna or cold plunge routine, particularly if you are pregnant or have a heart, blood pressure, or circulation condition. See our Editorial Policy.

Alternatives to Consider

Price buttons are affiliate links. We may earn a commission at no extra cost to you.Affiliate disclosure

Almost Heaven

Bridgeport 6-Person Indoor Sauna

A 6-person indoor cabin with a Harvia 8.0kW heater included, a choice of white fir or rustic cedar, and a limited lifetime warranty.

Capacity
6 people
Placement
Indoor

May suit: Larger households wanting genuine 6-person indoor capacity with the heater included

$5,337Was $8,561

Checked Oct 1, 2026

Reference price: Select Saunas compare-at price on its product listing, checked Oct 1, 2026

Almost Heaven

Grandview 4-6 Person Canopy Barrel Sauna

A wide-body 4-6 person canopy barrel sauna that ships with a heater included — electric or wood-burning — and a limited lifetime warranty.

Capacity
4-6 people (holds up to 8)
Placement
Outdoor

May suit: Larger groups or families wanting genuine 6-8 person barrel capacity

$6,358Was $10,688

Checked Oct 1, 2026

Reference price: Select Saunas compare-at price on its product listing, checked Oct 1, 2026

Frequently Asked Questions

How hot does a traditional sauna get?

Traditional saunas typically run hotter than infrared cabins, often exceeding what most infrared units reach, since they heat the surrounding air directly.

What's löyly?

Löyly is the burst of steam created when water is ladled onto the hot rocks of a traditional sauna heater.