Skip to content

Thermory 4 Person Square Sauna No 43 DIY Kit with Terrace

Sale price $8,008.00

Shipping calculated at checkout

Wood Finish & Configuration
Heater Bundle
Add-ons

Shop with confidence

  • Fast shipping
  • Easy exchanges
  • Trusted reviews
  • Eco materials
  • Price guarantee
  • Ach Direct Debit
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Financing

Finance Your Next Sauna with Bread Pay®

We have teamed up with Bread Pay® to offer easy financing - without a catch. There are no origination fees or prepayment penalties. Provide some basic information and get a real time decision to split your purchase into 12, 24, or 36 monthly payments* or even break up your purchase between a credit card and financing. Apply for Bread Pay® financing online today!

Financing Chart

*Minimum purchase of $50.00 is required. Availability of terms may vary based on purchase price, product, and state of residence. Down payment may be required. Subject to approval of credit application. Rates range from 0% to 34.99% APR, resulting in, for example 24 monthly payments of $51.87 at 21.99% APR, per $1,000.00 borrowed. APRs will vary depending on credit qualifications, loan amount, and term. Bread Pay® loans are made by Comenity Capital Bank, a Bread Financial® company.

HSA / FSA Funds

 

HSA/FSA Funds

Exciting news - we’ve partnered with TrueMed to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA) at Nordica This means you can buy our products with pre-tax dollars, resulting in net savings of 30-40%. 

TrueMed is on a mission to make healthy options more affordable. You can learn more about them here.

Since saunas, ice bath tubs, and other wellness products are now considered to be very beneficial tools for one's mental and physical health, FSA and HSA cards are now being accepted as health and medical expenses. 

HSAs and FSAs were created for you to spend tax-advantaged dollars on products and services that can treat or prevent medical conditions and TrueMed is making it easy to do just that.

 

The 4 Person Square Sauna No 43 DIY Kit with Terrace is a 3–4 person square sauna DIY kit built from thermally-modified Northern European Spruce — chemical-free, kiln-stable, and engineered to outlast cedar in any climate. Pre-cut and pre-milled with no on-site cutting required, you'll install it in about a day with no specialty tools.

Configure your build below: pick a structural Configuration (Sauna Solo or with add-on kits), choose your heater package (Harvia or Homecraft, or bring your own), and add lighting or accessory packages.

Key Features

Capacity 3–4 Person
Configuration Terrace · Solid Back
Benches Lower: 6.5 ft × 1.61 ft · Upper: 2.9 ft × 1.61 ft
Door 6'2" tempered-glass entry door
Wood Thermally Modified Northern European Spruce (chemical-free heat & steam treatment)
Installation DIY-friendly · pre-cut and pre-milled · no on-site cutting · ~1 day install

Dimensions

Outside 6.90 ft L × 6.90 ft W × 7.28 ft H
Inside 191 cu ft
Interior Volume 191 cu ft

Choose Your Heater

Pick from authorized Harvia (Finland) or Homecraft (USA) heater packages. All Homecraft packages include the Outdoor Wifi Touchpad and stones. Harvia packages with Fenix Control add a separate Wi-Fi-enabled touch panel.

8 kW Harvia KIP B

8 kW Harvia KIP B

Mechanical dial control · Stainless steel cabinet
240V 1-Phase · Made in Finland

8 kW Harvia KIP W + Stones

8 kW Harvia KIP W + Stones

Xenio Smart Wi-Fi touch panel · Stainless steel
240V or 208V · Made in Finland

8 kW Harvia Spirit + Stones

8 kW Harvia Spirit + Stones

Premium wall-mount · Xenio + Fenix Wi-Fi control
Stones + Fenix touchscreen included · Made in Finland

6 kW Homecraft Revive Slim

6 kW Homecraft Revive Slim

Slim-profile electric · Outdoor Wi-Fi touchpad included
Back baffle · Stones included · 240V · Made in USA

Juniper Half Wall Panel Kit

Thermory Juniper Half Wall Panel Kit installed in a barrel sauna

Add a contrasting feature wall in genuine Finnish juniper — a dense, aromatic hardwood that resists moisture and releases a subtle scent in the heat. The half-wall panel adds visual depth at the seating area while keeping the upper sauna open and bright. A signature Nordic accent.

Add-on Modifiers

Stack any add-on with your chosen Configuration and Heater bundle — picked separately so you only pay for what you want.

  • Under-Bench Lighting (+$689) — Warm LED strip lighting concealed beneath the lower bench. Sauna-rated, low-voltage, with dimmer.
  • Bucket, Ladle & Thermometer Package (+$298) — Finnish hardwood bucket with PVC liner, matching ladle, and a sauna-rated thermometer/hygrometer combo. Ready to use on day one.

Why Thermory

Thermory is the only thermally-modified barrel sauna manufacturer in North America. We heat and steam our Nordic spruce to chemically alter the wood at the cellular level — releasing sugars that attract rot, stabilizing the cell walls against moisture, and locking in dimensional stability that cedar can't match. Result: a sauna that doesn't shrink or warp through changing seasons and outperforms competitors on durability, rot-resistance, and clean aesthetic. No chemicals. No sealers required. Just wood, perfected.

What's Included

  • Pre-cut and pre-milled body staves and wall panels
  • Sauna cradles & metal banding
  • Interior bench framework, backrest staves, duckboard flooring
  • Tempered-glass front door
  • All fasteners, adhesive roof tape, and hardware
  • Heat shield, cable raceway
  • Rain jacket and exterior trim package
  • Step-by-step installation guide

Heater not included — select your Harvia heater bundle in the Configuration dropdown above.

FINANCING AVAILABLE

Clear, transparent terms. Fair rates. No prepayment penalties.

Get Your Rate

PAY OVER TIME

We provide easy and affordable financing through our partner Bread® so you can pay for your purchase over time.

Affordable Monthly Plans

Affordable Monthly Plans

Buy now and pay for your purchase over time at competitive rates.

No prepayment penalties

No prepayment penalties

Pay for your purchase with monthly payments and prepay at any time without penalty.

Easy Application

Easy Application

Get a decision in seconds with no obligation to buy. Checking your rate won't affect your credit score. Your data is safe and encrypted.

It’s Easy

Step 1

Add to Cart

Connector 1
Step 2

Checkout with Bread®

Connector 2
Step 3

Receive Your Sauna

Connector 3
Step 4

Pay Over Time