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Electric Sauna Heaters  ▸  HUUM  ▸  Steel Series  ▸  HUUM Steel Mini 4 Sauna Heater

HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)
HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)
HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)
HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)
HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)

HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)

for saunas with 106 - 177 ft³ adj. volume (most 2-3 person saunas) verify your sauna

Power
Options
Power OptionsHUUM Steel Power Options

The HUUM Steel has several different power options. The heater you're currently viewing has 3.5 kW (kilowatts) of power and is rated for use in saunas with an "adjusted volume" of 106 - 177 ft³ (which includes most saunas for 2-3 people). If your sauna's adjusted volume doesn't fall within this range, please select the power option in this toolbar that meets your needs.

Not sure what your sauna's adjusted volume is?

Use this 20-second CALCULATOR to find out.
3.5 kW
106 - 177 ft³
3.5 kW (106 - 177 ft³)
6.0 kW
177 - 318 ft³
6.0 kW (177 - 318 ft³)
9.0 kW
283 - 460 ft³
9.0 kW (283 - 460 ft³)
10.5 kW
354 - 566 ft³
10.5 kW (354 - 566 ft³)
HUUM Steel Power Options

The HUUM Steel has several different power options. The heater you're currently viewing has 3.5 kW (kilowatts) of power and is rated for use in saunas with an "adjusted volume" of 106 - 177 ft³ (which includes most saunas for 2-3 people). If your sauna's adjusted volume doesn't fall within this range, please select the power option in this toolbar that meets your needs.

Not sure what your sauna's adjusted volume is?

Use this 20-second CALCULATOR to find out.
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$1,971
$1,971 - $5,180
$1,971
$1,576
$1,576 - $4,143
$1,576

Possible Coupon(s):  Reveal

Customization Options:

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    Free shipping

    Low price
    Expert

    2-day processing

    Free consultation

    A+ HUUM dealer

    About the HUUM Steel Mini 4 Sauna Heater

    Electric Heater

    Electric Heater

    plugs into a 240-Volt electrical outlet (see all 240V heaters)

    From HUUM's

    From HUUM's

    STEEL series of tall/skinny heaters (see other HUUM designs)

    3.5kW Power

    3.5kW Power

    for saunas with 106-177 ft³ adjusted volumeFor Saunas With an Adjusted  Volume of 106-177 Cubic Feet (ft³)

    "Adjusted volume" is the interior volume of a sauna (i.e. Width  x  Depth  x  Height) plus an adjustment to account for "cold surfaces" in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more if your sauna has lots of cold surfaces (i.e. multiple large windows).

    This heater is rated for use in saunas with an adjusted volume of 106 - 177 ft³, which includes most 2-3 person saunas (based on average  sauna sizes, layouts & interior cold surfaces). Your sauna may differ. We strongly recommend taking 20 seconds to verify your sauna's adjusted volume to ensure that this 3.5 kW heater has sufficient power to heat your sauna.

    If your sauna's adjusted volume is more or less than this heater's 106-177 ft³ range, click here to see other kW powers available for this same heater.

    Standing Wall Mount

    Standing Wall Mount

    heaters sits on the floor but is up against the wall (see other standing wall-mount heaters)

    Required to Run

    Required to Run

    heater requires a UKU control unit and 132 lbs. of sauna stones to operate

    Electric Heater

    Electric Heater

    plugs into a 240-Volt electrical outlet (see all 240V heaters)

    From HUUM's

    From HUUM's

    STEEL series of tall/skinny heaters (see other HUUM designs)

    3.5kW Power

    3.5kW Power

    for saunas with 106-177 ft³ adjusted volumeFor Saunas With an Adjusted  Volume of 106-177 Cubic Feet (ft³)

    "Adjusted volume" is the interior volume of a sauna (i.e. Width  x  Depth  x  Height) plus an adjustment to account for "cold surfaces" in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more if your sauna has lots of cold surfaces (i.e. multiple large windows).

    This heater is rated for use in saunas with an adjusted volume of 106 - 177 ft³, which includes most 2-3 person saunas (based on average  sauna sizes, layouts & interior cold surfaces). Your sauna may differ. We strongly recommend taking 20 seconds to verify your sauna's adjusted volume to ensure that this 3.5 kW heater has sufficient power to heat your sauna.

    If your sauna's adjusted volume is more or less than this heater's 106-177 ft³ range, click here to see other kW powers available for this same heater.

    Standing Wall Mount

    Standing Wall Mount

    heaters sits on the floor but is up against the wall (see other standing wall-mount heaters)

    Required to Run

    Required to Run

    heater requires a UKU control unit and 132 lbs. of sauna stones to operate

    The HUUM Steel Mini 4:

    Soft & Even Heat

    enjoy consistent, satisfying warmth (instead of spikes & fades)

    132-Pound Stone Capacity

    with maximum surface area exposure to create stone-rich heat

    Several Control Options

    choose either a local (touch) control unit or a WiFi-enabled control unit (several color options)

    Heats Up to 230° F

    more than capable of delivering all the heat you want

    Made in Estonia

    with only the highest quality stainless steel & other materials

    3-Year Warranty

    when used in a private home sauna (see details)

    Soft & Even Heat

    enjoy consistent, satisfying warmth (instead of spikes & fades)

    132-Pound Stone Capacity

    with maximum surface area exposure to create stone-rich heat

    Several Control Options

    choose either a local (touch) control unit or a WiFi-enabled control unit (several color options)

    Heats Up to 230° F

    more than capable of delivering all the heat you want

    Made in Estonia

    with only the highest quality stainless steel & other materials

    3-Year Warranty

    when used in a private home sauna (see details)

    Additional Information

    HUUM Steel Mini 3.5kW 240V/1PH Electric Sauna Heater

    The HUUM Steel is a classy and powerful pick for a modern home sauna. With its large stone capacity for its size, you will achieve a nice even steam that heats the whole cabin. The design is inspired by the strength and simplicity of steel with a modern touch. Even with its strong steel shell, you can see the round stones that lie within.

    1. HUUM Steel sauna heater

    2. Installation and operations manual

    3. Wall fastening bracket
    • In order to operate your sauna heater, you will need to purchase HUUM Steel stones and HUUM UKU Control package separately. You can easily add these in by pressing + above add to cart button on this page.
    ModelSTEEL Mini 3.5
    Kilowatt Rating3.5 KW
    Minimum Cubic Feet106 CF
    Maximum Cubic Feet177 CF
    Heater Weight32 lbs
    Shipping Weight with Sauna Stones165 lbs
    240V, Single Phase Amperage14.58
    Width12.6" W (320mm)
    Depth6" D (150mm)
    Height38.4" H (975mm)

    Shipping

    the size of HUUM Steel requires it to be shipped on a wooden pallet. You will receive a tracking number as soon as your order has been shipped out. All our shipments are fully insured. HUUM products are shipped from Chicago. The pallet will be delivered to your curbside. Carrier will call you to set up the delivery of the pallet before delivery. Shipping is free. For white glow delivery or express shipping options, contact us.

    Returns

    Cancellations

    You can cancel your order, before the product has shipped, free of charge. We will initiate a 100% refund on orders canceled before shipping.

    Returns

    The HUUM products have a 30 day return policy. Meaning that you can return the product as long as you let us know that you want to initiate a return during the 30 day period starting from the date the product is delivered to you.

    You can return this HUUM product if it is unused. Meaning you have not tried to install the product, nor used it in any way. If you have received your product with free shipping, you’re responsible for the return shipping cost. You will also have to pay a restocking fee of 35% from the final purchase price of the item you return. In case you return your product, once we have inspected it at the warehouse, and verified it’s unused, we will refund the card you used to purchase the HUUM according to this policy.

    Owner's Manual - view / download

    Heater Diagram - view / download

    HUUM Warranty - view / download

    Stone Requirements - view / download

    Heating Elements Info - view / download

    SGS Certificate of Compliance - view / download

    HUUM Steel Mini 4 Electric Sauna Heater (3.5kW - 240V)

    Like this heater but need more (or less) kW power?

    You have options! This table lists all of the heaters in the HUUM Steel series and tells you the kW power and sauna size (adjusted volume) for each model. Please note that while the Steel Mini 4 is a "standing wall mount" heater (meaning it sits on the floor but is right up against the wall), the Steel 6, Steel 9 and Steel 11 are all free-standing heaters.

    Model        Model
    Power        Power
    Adj. VolumeAdjusted Sauna Volume

    This column shows the adjusted sauna volume range for which each sauna heater is rated.

    "Adjusted sauna volume" is the volume (i.e. Width  x  Depth  x  Height) of the interior of the sauna PLUS an adjustment for cold surfaces in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more (for example, if your sauna has multiple large windows).

    Want to verify your sauna's adjusted volume?  Use this 20-second CALCULATOR to make sure the heater you buy has the correct power (measured in kilowatts, or kW).     Adj. Vol.Adjusted Sauna Volume

    This column shows the adjusted sauna volume range for which each sauna heater is rated.

    "Adjusted sauna volume" is the volume (i.e. Width  x  Depth  x  Height) of the interior of the sauna PLUS an adjustment for cold surfaces in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more (for example, if your sauna has multiple large windows).

    Want to verify your sauna's adjusted volume?  Use this 20-second CALCULATOR to make sure the heater you buy has the correct power (measured in kilowatts, or kW).
    Sauna SizeMaximum Sauna Size

    This column provides a quick-reference estimate of the maximum sauna capacity (i.e. 3-person sauna, 4-person sauna, etc.) for which each sauna heater is rated.

    Again, this is only an estimate based on average sauna sizes, layouts & interior cold surfaces. Your sauna may differ. We strongly recommend taking 20 seconds to verify your sauna's adjusted volume (which is much more precise) to make sure the heater you buy has enough power (measured in kilowatts, or kW).     Sauna Size
    Price Price
    Steel Mini 4 3.5 kW 106 - 177 ft³ 2-3 people $1,576   THIS HEATER this heater
    Steel 6 6.0 kW 177 - 318 ft³ 3-4 people $2,033 View Product → view
    Steel 9 9.0 kW 283 - 460 ft³ 5-6 people $2,224 View Product → view
    Steel 11 10.5 kW 354 - 566 ft³ 6-7 people $2,391 View Product → view

    Not sure how much kW power you need for your sauna?

    Just click this button & we'll tell you →   Calculate kW Needed

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