Huum Uku Controller Extension Power Box On Black Sauna Cladding.
Huum Uku Extension Box, White Wall-Mounted Enclosure For Huum Sauna Heaters Rated 12 Kw And Above, On Thermally Modified Aspen Sauna Cladding
Click to enlarge
Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Specs
Weight3.25 lbs
Dimensions7.0 × 7.0 × 6.0 in
Includes

What Is Included

All configurations

Included with purchase

Extension box installation and operation manual.

Contents vary by configuration. Check the row for the option selected above.

How It Fits

How This Product Fits the System

What it is used for

The external control system for compatible HUUM electric heaters. Select the correct local or Wi-Fi package and add an extension box when the heater load requires one.

What to plan

  • Match heater family, voltage, phase, maximum load, power unit, sensors, and control generation as one system.
  • Confirm whether the selected package includes the display, main module, sensors, cables, and any required extension box.
  • Sensor placement, door interlock, remote-start rules, and cable routing must follow the current control manual.

Designed to work with

Model-specific replacements and compatible system components.

Products that use this item

This item is used by the following products.

Gallery
Huum Uku Controller Extension Power Box On Black Sauna Cladding.
Huum Uku Extension Box, White Wall-Mounted Enclosure For Huum Sauna Heaters Rated 12 Kw And Above, On Thermally Modified Aspen Sauna Cladding
Click to enlarge

    HUUM UKU Extension Box

    Power extension box required for HUUM sauna heaters rated 12 kW and above, used with the UKU control system.

    Build Your Quote:

    $773.00

    Share your selected heater size and add-ons. Prices and availability are confirmed when the link is opened.

    Zero Interest Payments:

    Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

    Pay with HSA/FSA:

    We teamed up with FLEX to make HSA/FSA payments easier than ever.

    HUUM

    The HUUM UKU extension box provides the additional switching capacity a HUUM heater needs once it is rated 12 kW or above. It is installed alongside a HUUM UKU control (Local or Wi-Fi), which remains the user interface for the sauna.

    It is not required below that threshold, the HIVE Mini at 10.6 kW, for example, runs without one.

    Wall-mounted enclosure. Installation by a licensed electrician in accordance with the current HUUM UKU manual and local electrical code.

    Expert help that stays with you

    Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

    Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

    We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

    Sauna and heater customers also receive free shipping on sauna accessories for life.

    Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

    Specs
    Weight3.25 lbs
    Dimensions7.0 × 7.0 × 6.0 in
    Includes

    What Is Included

    All configurations

    Included with purchase

    Extension box installation and operation manual.

    Contents vary by configuration. Check the row for the option selected above.

    How It Fits

    How This Product Fits the System

    What it is used for

    The external control system for compatible HUUM electric heaters. Select the correct local or Wi-Fi package and add an extension box when the heater load requires one.

    What to plan

    • Match heater family, voltage, phase, maximum load, power unit, sensors, and control generation as one system.
    • Confirm whether the selected package includes the display, main module, sensors, cables, and any required extension box.
    • Sensor placement, door interlock, remote-start rules, and cable routing must follow the current control manual.

    Designed to work with

    Model-specific replacements and compatible system components.

    Products that use this item

    This item is used by the following products.

    Gallery
    Huum Uku Controller Extension Power Box On Black Sauna Cladding.
    Huum Uku Extension Box, White Wall-Mounted Enclosure For Huum Sauna Heaters Rated 12 Kw And Above, On Thermally Modified Aspen Sauna Cladding
    Click to enlarge

      PLAN THE WHOLE SAUNA

      The room and heater still have to work as one system.

      Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.

      Compare sauna heaters

      See electric sauna heaters by output, stone mass, control style, and installation type. Size from adjusted room volume, not floor dimensions alone.

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      Explore indoor and outdoor saunas when you are planning beyond one component. Starting with the room makes heater size, controls, and accessories easier to get right.

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