Harvia M3 Wood Burning Sauna Heater for Small Saunas

First and foremost, Therasauna is made in the USA. To our knowledge, there are only 3 manufacturers in the USA. We are 1 of them. Most of our competitors offer cookie cutter units made overseas and simply add their logo to the product. We are based HERE in the USA. Sales, service and customer support. All here.

MandeSpa, made in Europe with the finest wood. We import them and have them readily available HERE in the USA. They ship from our warehouse in Wisconsin. Sales, service and customer support. All here. Ask our competitors where their saunas are made.

Our saunas are Premium Brand saunas with patented technology, registered here in the USA. We are not the least expensive choice but worth the price.

These saunas are of lesser quality. Often made with woods that have harmful terpenes that can cause respiratory and skin complications. We sell premium brand name saunas that are crafted individually. These are not "cookie cutter" units produced in mass overseas.

Using a sauna regularly offers many proven infrared sauna benefits including detoxification, improved blood circulation, muscle recovery, stress relief, skin rejuvenation, and better sleep. Traditional steam saunas may also help with respiratory health and relaxation. Please note that sauna use may not be recommended for people with certain medical conditions (such as heart issues, high blood pressure, or pregnancy). Always check with your healthcare provider before starting a sauna routine.

Most smaller saunas use a standard household outlet, but larger saunas may require a dedicated 20-amp or 240V circuit. Installation is simple thanks to pre-assembled panels and easy instructions. While many customers complete installation themselves, we recommend a licensed electrician for electrical connections to ensure safe sauna setup.

PLEASE NOTE THAT YOUR UNIT MUST BE ETL CERTIFIED TO BE SOLD IN THE USA. MANY OF OUR COMPETITORS DO NOT MEET THIS STANDARD. PLEASE CHECK BEFORE MAKING THE PURCHASE!

TheraSauna orders typically ship within 1 business week, and transit time varies by location. Mande Sap orders typically ship within 1 business week. Once your sauna arrives, most models can be assembled in 1–2 hours by two people. Larger outdoor saunas may take slightly longer. We’ll send you regular shipping updates so you know exactly when to expect your sauna curbside delivery. WE STRONGLY SUGGEST ASKING ABOUT AVAILABILITY BEFORE PURCHASE.

Yes, we offer flexible sauna financing options at checkout. Choose from monthly installment plans from Shop Pay, including 0% APR promotions on approved credit. This makes it easy to enjoy the benefits of a sauna at home without paying all at once.

Home sauna maintenance is simple:

• Wipe down benches and walls with a gentle, non-toxic cleaner.
  
• Use towels to keep wood surfaces clean and dry.
  
• Inspect heating elements periodically for dust.
  
• Replace light bulbs or minor components as needed.
  

With proper care, your sauna will remain in excellent condition for many years.

Yes! Our sauna support team is here to help with installation questions, troubleshooting, and ordering replacement parts. We also offer step-by-step guides and video tutorials for setup and maintenance. You can reach us via phone, email, or chat anytime.

Many wellness experts recommend using a sauna 4–7 times per week, though some people enjoy it daily. Typical infrared sauna sessions last 20–40 minutes depending on comfort level and heat intensity. Always stay hydrated, start with shorter sessions if you’re new, and exit if you feel lightheaded. This routine ensures maximum sauna health benefits while keeping you safe.

The main difference is how heat is produced and absorbed:

• Infrared saunas use infrared light to directly heat your body, which allows for lower air temperatures (110–150°F) and deep tissue penetration. Many people find them more comfortable and easier to tolerate.
  
• Traditional steam saunas heat the air to higher temperatures (160–200°F), creating a more intense environment that some prefer for relaxation and sweating.
  

Both types provide excellent wellness benefits, and your choice depends on comfort, health goals, and personal preference.