Harvia The Wall Series 6kW Electric Sauna Heater vs HUUM Steel Mini 3.5 kW Electric Sauna Heater

The Harvia The Wall Series 6kW Electric Sauna Heater costs $1,548 and the HUUM Steel Mini 3.5 kW Electric Sauna Heater costs $1,576. 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

Affiliate disclosure

Our verdict

The choice between the Harvia The Wall Series 6kW Electric Sauna Heater ($1,548) and the HUUM Steel Mini 3.5 kW Electric Sauna Heater ($1,576) comes down to model. The Harvia The Wall Series 6kW Electric Sauna Heater offers model of The Wall SWS60/SW60, while the HUUM Steel Mini 3.5 kW Electric Sauna Heater offers STEEL Mini 3.5. The Harvia The Wall Series 6kW Electric Sauna Heater saves you $28; pay the difference for the HUUM Steel Mini 3.5 kW Electric Sauna Heater 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 The Wall Series 6kW Electric Sauna Heater if

Harvia The Wall Series 6kW Electric Sauna Heater: You want model of The Wall SWS60/SW60. The Harvia The Wall Series 6kW Electric Sauna Heater also costs $28 less than the HUUM Steel Mini 3.5 kW Electric Sauna Heater.

Choose the HUUM Steel Mini 3.5 kW Electric Sauna Heater if

HUUM Steel Mini 3.5 kW Electric Sauna Heater: You want model of STEEL Mini 3.5.

Full specs comparison

Harvia The Wall Series 6kW Electric Sauna Heater vs HUUM Steel Mini 3.5 kW Electric Sauna Heater full spec comparison
SpecHarvia The Wall Series 6kW Electric Sauna HeaterHUUM Steel Mini 3.5 kW Electric Sauna Heater
Price$1,548$1,576
Type··
Heat Type··
Temp Range··
Heat-Up Time··
Capacity··
Dimensions··
Weight31.5 lbs32 lbs
EMF Level··
Power6.0 KW3.5 KW
Warranty··

Pros and cons

Harvia The Wall Series 6kW Electric Sauna Heater

Pros

    Cons

      HUUM Steel Mini 3.5 kW Electric Sauna Heater

      Pros

        Cons

          Harvia The Wall Series 6kW Electric Sauna Heater vs HUUM Steel Mini 3.5 kW Electric Sauna Heater: common questions

          How much more does the HUUM Steel Mini 3.5 kW Electric Sauna Heater cost than the Harvia The Wall Series 6kW Electric Sauna Heater?

          The HUUM Steel Mini 3.5 kW Electric Sauna Heater costs $1,576, which is $28 more than the $1,548 Harvia The Wall Series 6kW Electric Sauna Heater. Beyond price, the main spec difference is model: the HUUM Steel Mini 3.5 kW Electric Sauna Heater offers model of STEEL Mini 3.5, the Harvia The Wall Series 6kW Electric Sauna Heater offers model of The Wall SWS60/SW60.

          Is the Harvia The Wall Series 6kW Electric Sauna Heater worth it over the HUUM Steel Mini 3.5 kW Electric Sauna Heater?

          It depends on the spec you need, and we do not name one of these two better than the other. The Harvia The Wall Series 6kW Electric Sauna Heater offers model of The Wall SWS60/SW60, while the HUUM Steel Mini 3.5 kW Electric Sauna Heater offers STEEL Mini 3.5. The Harvia The Wall Series 6kW Electric Sauna Heater costs $1,548 and the HUUM Steel Mini 3.5 kW Electric Sauna Heater costs $1,576, a difference of $28.

          What is the main difference between the Harvia The Wall Series 6kW Electric Sauna Heater and the HUUM Steel Mini 3.5 kW Electric Sauna Heater?

          The Harvia The Wall Series 6kW Electric Sauna Heater offers model of The Wall SWS60/SW60; the HUUM Steel Mini 3.5 kW Electric Sauna Heater offers model of STEEL Mini 3.5. That is the deciding spec difference between the two.

          Neither of these quite right?

          Take our 60-second quiz and we will match you with the best option for your budget, space, and goals.