Harvia PRO Series 20 SL 24.1kW Sauna Stove Package vs Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit

The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package costs $4,649 and the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit costs $4,670. This comparison covers the full spec sheets of both, the deciding difference between them, and which buyer each one fits.

Prices verified August 2026

How we vet

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Our verdict

The choice between the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package ($4,649) and the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit ($4,670) comes down to model. The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package offers model of Pro 20 SL, while the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit offers M3. The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package saves you $21; pay the difference for the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit only if that gap buys a spec you will use.

Prices verified August 2026.

How we vet

Which one is right for you?

It depends on your situation.

Choose the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package if

Harvia PRO Series 20 SL 24.1kW Sauna Stove Package: You want model of Pro 20 SL. The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package also costs $21 less than the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit.

Choose the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit if

Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit: You want model of M3.

Full specs comparison

Harvia PRO Series 20 SL 24.1kW Sauna Stove Package vs Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit full spec comparison
SpecHarvia PRO Series 20 SL 24.1kW Sauna Stove PackageHarvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit
Price$4,649$4,670
Type··
Heat Type··
Temp Range··
Heat-Up Time··
Capacity··
Dimensions·4"D x 24"W x 51"L
Weight154 lbs97 lbs
EMF Level··
Power24.1 KW16.5 kW
Warranty··

Pros and cons

Harvia PRO Series 20 SL 24.1kW Sauna Stove Package

Pros

    Cons

      Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit

      Pros

        Cons

          Harvia PRO Series 20 SL 24.1kW Sauna Stove Package vs Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit: common questions

          How much more does the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit cost than the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package?

          The Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit costs $4,670, which is $21 more than the $4,649 Harvia PRO Series 20 SL 24.1kW Sauna Stove Package. Beyond price, the main spec difference is model: the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit offers model of M3, the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package offers model of Pro 20 SL.

          Is the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package worth it over the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit?

          It depends on the spec you need, and we do not name one of these two better than the other. The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package offers model of Pro 20 SL, while the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit offers M3. The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package costs $4,649 and the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit costs $4,670, a difference of $21.

          What is the main difference between the Harvia PRO Series 20 SL 24.1kW Sauna Stove Package and the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit?

          The Harvia PRO Series 20 SL 24.1kW Sauna Stove Package offers model of Pro 20 SL; the Harvia M3 Wood-Burning Stove Stainless Steel Package with Small Floor Kit offers model of M3. That is the deciding spec difference between the two.

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