Sauna Buying & Installation Guides
Download the building guide, size your heater, compare materials, and find answers to common sauna questions.
Three Simple Steps
Find the Right Sauna Heater
Enter the finished interior dimensions of the hot room. We account for exposed glass, tile, brick, concrete, or stone, then show heater packages whose published room-size range fits the adjusted volume.
1
Measure the finished sauna interior
Measure wall to wall inside the sauna. Do not include a changing room or exterior framing.
2
Add cold surfaces and wall construction
Multiply the width by height of each exposed surface, then add them together. Each square foot adds 2 cubic feet.
3
Your heater recommendation
Room Volume0cubic ft
Cold Surface Adder0cubic ft
Adjusted Volume0cubic ft
Recommended Output0kW
Recommendations use adjusted room volume. Always confirm the room-size range and installation manual for the exact heater you select.
Available From Our Store
Heater packages for your sauna
Your room falls outside the published range of our current online packages. Contact us and we’ll help size the right heater.
Traditional Sauna vs. Infrared Sauna vs. Red Light Therapy
Not sure which type of heat is right for you? Compare traditional (wood or electric) saunas, infrared saunas, and red light therapy side-by-side on health benefits, session length, and cost.
See the full comparison to find the best fit for your goals and space.
Compare Sauna & Red Light Therapy TypesWhich Wood Is Right for You?
Cedar, hemlock, aspen, and other sauna woods each perform differently on heat retention, aroma, durability, and price.
See a full side-by-side wood comparison to pick the right one for your build.
Compare Sauna WoodsInstallation Basics
Most electric heaters require a dedicated 240V circuit sized to the unit's amperage; check the spec table on each product page and confirm requirements with a licensed electrician before installation.
Need Help Building or Assembling Your Sauna?
If you're in Texas or a surrounding state and want a professional to build or assemble your sauna on-site, TexZen Builds can help.
Get in touch for on-site build and assembly service.
Visit TexZenBuilds.comHave a question we haven't answered here? Reach out and we'll help you get it right.
Looking for a product you can't find on our site? Request a product and we'll see if we can source it for you.
Frequently Asked Questions
How do I build a Sauna?
View and download the Traditional Stone Sauna Building Guide above
- Plan the sauna before buying materials
- Select and size the electric heater
- Confirm permits, codes, and responsibilities
- Gather materials and tools
- Build the foundation and floor
- Frame the walls and ceiling
- Complete electrical, lighting, and control rough-in
- Plan ventilation
- Install insulation and sauna foil
- Add furring strips and the interior air space
- Install ceiling and wall paneling
- Build and install benches
- Install the door, glass, trim, and accessories
- Install the heater, controls, sensors, and stones
- Test the sauna and complete the first heat cycle
- Follow care and maintenance practices
- Avoid common building mistakes
- Complete the final project checklist
What comes with a sauna heater package?
Every heater package we sell includes the heater, the required controls, and sauna stones -- never sold heater-only. The exact components for each model are listed in the Includes accordion on that product’s page.
Is shipping free on sauna heater packages?
Most heater packages ship free. Some items ship via freight instead, which is called out directly on the product page and in the cart -- check the shipping note on each product before ordering.
What size heater do I need for my sauna?
Heater output is matched to your room’s volume in cubic feet, not square footage. Use the Sauna Sizing Calculator above to get a recommended kW size based on your room dimensions and any cold surface materials.
What electrical requirements do sauna heaters have?
Most electric heaters require a dedicated 240V circuit sized to the unit’s amperage. Check the Electrical Requirements accordion on each product page for the specific breaker, fuse, and wire size, and confirm requirements with a licensed electrician before installation.
Do you sell outdoor and indoor saunas, or just heaters?
We carry complete outdoor sauna kits and indoor infrared saunas in addition to heater packages. Browse Outdoor Saunas and Indoor Saunas from the Shop page.
What brands do you carry?
We currently carry Harvia heater packages, HUUM heater packages, SaunaLife outdoor sauna kits, and Finnmark indoor infrared saunas.
Where can I find manuals and documentation for a specific heater?
Each heater package’s product page has Manuals, Shipping, and Electrical Requirements accordions with the specific documents and requirements for that model.
What if I can’t find the product I’m looking for?
Use the Request a Product form on our Contact page. Send us the product details (and a quote or invoice if you have one) and we’ll see if we can source it for you.