Cedarbrook Sauna Kit
Cedarbrook 4x6 Modular Indoor Sauna Kit, 3-Person
Cedarbrook's 4x6 kit arrives as 4-inch-thick pre-built panels of clear western red cedar with a 6 kW Finlandia FLB-60 heater. Cedarbrook says it reaches 170–195°F (77–91°C) in about 25 minutes on a 240V, 30-amp circuit.
- Western Red Cedar
- Electric
- 240V Hardwired
Where it’s made
According to the maker:
- Built in Woodinville, Washington
- Materials Clear western red cedar throughout, frame included; the maker names no source region
- Imported parts Finlandia FLB-60 heater, built by Harvia in Finland
$9,340USD
from $3,113 a seat
Right at the median for indoor saunas.
We may earn a commission when you buy through this link, and you pay the same price. Price as recorded in our catalog on Oct 10, 2026.
Good to know: Cedarbrook takes a 50% deposit and ships the kit by freight on a pallet, with wall panels up to 150 pounds each.
- seats
- 3
- heater
- 6kW
- top heat, 91°C
- 195°F
- hardwired circuit
- 240V
- per seat
- $3,113
Before you order
This page gathers what Cedarbrook publishes about the 4x6 kit, checked Oct 10, 2026, and adds up what it costs to install.
Who should buy the 4x6 kit?
The 4x6 kit suits someone who wants a solid cedar room indoors without framing one. Cedarbrook builds the 4-inch panels in Woodinville, Washington, with cedar framing, R-11 insulation and cedar siding outside, and the 6 kW Finlandia FLB-60 comes in the price. Cedarbrook says it reaches 170–195°F (77–91°C) in about 25 minutes.
Almost Heaven's Auburn costs about half as much for a similar footprint. Finlandia's FPC56 costs less too if you'll frame the walls yourself.
What does it take to install?
The room is 4 by 6 feet inside and 6 feet 4 inches tall by default, on a footprint of 4 feet 8 inches by 6 feet 8 inches. The heater needs a 240V, 30-amp breaker on 10-gauge wire. Panels weigh up to 150 pounds each, and Cedarbrook installs only within about 100 miles of Woodinville.
What does the 4x6 kit cost all in?
| Cost | Amount | Where the figure comes from |
|---|---|---|
| List price | $9,340 | The regular price at Cedarbrook, recorded Oct 10, 2026. |
| 240V, 30-amp circuit | Electrician's quote | 10-gauge wire |
| Freight | Quoted | On a pallet by LTL freight |
| Taller ceiling or heater upgrade | Extra | Stainless, TopClass or Harvia Cilindro heaters are options |
Cedarbrook takes a 50% deposit with the order and the balance before it ships.
This guide draws on Cedarbrook's 4x6 indoor kit page, read Oct 10, 2026.
By the numbers
Price in context
Where it sits among the 7 indoor saunas we list
At $9,340, the Cedarbrook 4x6 Modular Indoor Sauna Kit, 3-Person starts right at the median for indoor saunas. The cheapest is the Almost Heaven Auburn 2-3 Person Indoor Sauna at $4,577, and the dearest the Sun Home Nova 6-Person Indoor Traditional Sauna at $16,399.
What it costs to run
Electricity for a 6 kW heater
- Per session
- 31¢
- Per month
- $6.77
- Per year
- $81
Sessions of 30 minutes at 17.3¢ a kWh in USD, with the heater cycling as it holds temperature. 17.3¢ is the EIA's 2025 US residential average. Work it out for your own numbers.
How hot it gets
A traditional room heats the air itself
40°C122°F
50°C140°F
60°C158°F
70°C176°F
80°C194°F
90°C212°F
100°C230°F
110°C
The Cedarbrook 4x6 Modular Indoor Sauna Kit, 3-Person is a traditional sauna. Its heater warms the air to about 176–212°F (80–100°C), and sessions run 15 to 20 minutes. The listing puts its top at 195°F (91°C). An infrared cabin runs at 113–140°F.
What to know before you buy
Western red cedar, electric, 240V hardwired. These decide whether it suits your space and your electrical panel.
- Western Red CedarWestern Red Cedar is the high-end sauna wood, and it resists rot and insects naturally. It's aromatic and conducts heat poorly, so benches stay cool enough to sit on at 194°F (90°C).
- ElectricAn electric heater holds a steady temperature on its thermostat and needs no chimney. Many models add app or timer control.
- 240V HardwiredA hardwired model needs a dedicated 240V circuit installed by an electrician. Build roughly $600–$2,500 into your total budget for it.
Specifications
From Cedarbrook’s own listing, checked when the page was written.
| Brand | Cedarbrook |
|---|---|
| Model | Cedarbrook 4x6 Modular Indoor Sauna Kit, 3-Person |
| Type | Sauna Kit |
| Seats | 3 |
| Heater | 6 kW |
| Top temperature | 195°F (91°C) |
| Heat | Electric |
| Power | 240V Hardwired |
| Wood | Western Red Cedar |
| Materials and power | Western red cedar, electric, 240V hardwired |
| Where it's built | Built in Woodinville, Washington |
| List price | $9,340 USD |
| Price per seat | from $3,113 |
| Where to buy | Cedarbrook |
| Price recorded | Oct 10, 2026 |
How it compares
We'd weigh the 4x6 kit against these 3 models from our catalog.
- Almost Heaven Auburn 2-3 Person Indoor Sauna
$4,577
Almost Heaven's Auburn is a cedar room for two or three at about half the price
- Finlandia FPC56 5' x 6' Precut Sauna Package, 3-Person
$6,468
Finlandia's FPC56 lines a room you frame yourself
- Finnleo NorthStar 4' x 6' 2-3 Person Indoor Sauna
$9,499
Finnleo's NorthStar is a spruce room sold and set up by dealers
| Product | |  |  |  |
|---|---|---|---|---|
| Price | $9,340 | $4,577 | $6,468 | $9,499 |
| Seats | 3 | 3 | 3 | 3 |
| Heater | 6 kW | 6 kW | 6 kW | 4.5 kW |
| Heat | Electric | Electric | Electric | Electric |
| Power | 240V Hardwired | 240V Hardwired | 240V Hardwired | 240V Hardwired |
| Material | Western Red Cedar | Cedar | Western Red Cedar | Spruce |
| Links | Buy | See it | See it | See it |
Cedarbrook Sauna Kit
Buy the Cedarbrook 4x6 Modular Indoor Sauna Kit, 3-Person
$9,340
Buy at CedarbrookWe may earn a commission when you buy through this link, and you pay the same price.
