HUUM UKU Extension Box for Heaters 12 kW & Up
HUUM UKU Extension Box for Heaters 12 kW & Up

HUUM UKU Extension Box for Heaters 12 kW & Up

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HUUM UKU Extension Box for Heaters 12 kW & Up

For use with HUUM UKU Controllers, the HUUM Extension Box is required for all HUUM sauna heaters 12kW and larger.

  • Wall mounted
  • Dimensions: 7"W (177.8mm) x 7"D (177.8mm) x 6"H (152.4mm)
  • Volts: 240
  • Amps: 2x63

Package Includes:

  • Extension box
  • Installation and operation manual
  • 5-Year Limited Warranty



The purchaser is obliged to review the user manual of the product and follow the requirements stated therein. The warranty does not extend to failures due to non-compliance with the rules of use provided for in the manual. The warranty is valid, if the product has a technical defect or fault caused by the manufacturer.

  • The warranty covers the replacement of the product or of parts with manufacturing defects.
  • The warranty period is 5 years from the date of purchase.
  • NOTICE: The warranty is based on the presentation of the purchase receipt/invoice. The right to submit a claim is valid on the condition that the product has been used only for the intended purpose and conditions.

Warranty terms:

  • NOTICE: The warranty does not extend to heating elements of the electric heaters, these are considered expendable parts.
  • The warranty does not cover the defects caused by normal wear and tear of the product.
  • The warranty does not apply to heater stones.

Warranty does not cover the defects which are caused by:

  • Transport and other accidental damage to the product;
  • Careless or improper storage and use of the product and overloading;
  • Failure to comply with the instructions for installation and operation of the product and safety requirements.

Warranty does not apply:

  • If the product has been repaired by an unauthorized person, if non-approved parts have been added to the product, or if consumables not accepted by the manufacturer have been used (e.g. heating elements);
  • If the set of product is not complete.