HUUM UKU Extension Box for Heaters Over 12 kW - Safe, Easy, Durable Power Distribution
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Product Information
The HUUM UKU Extension Box is designed for use with UKU sauna controls, enabling compatibility with sauna heaters over 12kW. It ensures seamless operation of larger heaters, extending the capabilities of the UKU control system.
Ideal for high-capacity saunas, the extension box is essential for heaters exceeding 12kW. Durable and easy to install, it ensures reliable performance. Note: Sauna control sold separately.
Product Features
The HUUM UKU Extension Box is a wall-mounted accessory required for all HUUM heaters over 12kW.
It features a light grey finish, compact dimensions (7” W x 4” D x 10” H), and is SGS listed for quality assurance.
Designed and made in Estonia, it comes with a limited 5-year warranty (excluding elements).
Compatibility
Build Quality
Certification
Easy Installation
HUUM UKU Ext Box UKU Extension Box for Heaters over 12kW
- Design: Wall-mounted design with a sleek light grey finish for seamless integration.
- Durable Construction: Built to withstand the demands of high-capacity sauna heaters.
- Enhanced Compatibility: Extends the capabilities of the UKU control system for large heaters.
- Aesthetic Match: Light grey finish complements the modern design of HUUM sauna controls.
What’s Included?
- Extension box
- Installation and Operation manual
- Limited 5-year warranty (excluding elements)
Additional Features
The HUUM UKU Extension Box ensures reliable operation for heaters over 12kW, with durable construction
and seamless compatibility with UKU controls.
Its compact, wall-mounted design simplifies installation, while SGS certification guarantees safety.
Designed in Estonia, it offers efficient power management and complements modern sauna setups.
Thermal Safety
Designed to handle the increased power demands of heaters over 12kW.
Energy Optimization
Supports efficient and reliable operation of high-powered heaters.
Reliable Performance
Ensures seamless functionality when paired with compatible UKU controls.
Custom Design
Specifically tailored for HUUM heaters, ensuring a perfect fit and optimal performance.
About HUUM
HUUM is an innovative Estonian company creating high-quality sauna heaters that blend exquisite design, smart technology, and traditional craftsmanship.
Founded by Siim Nellis, a third-generation sauna stove producer, HUUM draws on decades of expertise and Nordic sauna traditions.
Their award-winning designs, like the DROP heater, prioritize gentle steam, efficiency, and sustainability. Made in Estonia, HUUM brings the authentic sauna experience to the world.
Why Choose Us?
Choose Peak Primal Wellness for a personalized, community-driven approach to health. We prioritize your well-being with high-quality products, tailored solutions, and 24/7 support.
As a family-owned business, we build lasting relationships, offering authentic, effective solutions to help you achieve your wellness goals.
Join our thriving community and embark on a journey toward optimal health with passionate professionals who genuinely care. At Peak Primal Wellness, you're not just a customer—you're family.
Specifications
| Brand | HUUM |
| SKU | H2003012 |
| Model | UKU Ext Box |
| Voltage | 240 |
| Circuit Breaker Amperage | 2 x 63 |
| Weight | 3.25 lbs |
| Dimensions (W x D x H) | 7" (178mm) x 4" (101mm) x 10" (254mm) |
| Installation Manual | UKU Ext-Box IM |
Warranty & Returns
Return Policy
Bathing Brands accepts returns of new, uninstalled items within 30 days of purchase. Contact us
promptly for a Return Authorization Number. For shipping damage, include photos and note if damage was
recorded upon delivery. Bathing Brands covers return shipping for damages or errors. For
change-of-mind returns, restocking fees are case-by-case, and customers cover shipping both ways. We
recommend insured shipping via the original method (Ground or LTL). Once returned, items are
inspected, and if damaged, you’ll be notified to file a claim with your shipper. Refunds are processed
after inspection. Custom or special-order items are non-returnable.
To request a return or refund, customers can use our contact form, email
(info@peakprimalwellness.com) , or phone
- (877) 689-4898. Once the product is inspected and confirmed to be in brand new condition, we will initiate the
refund, which typically takes 5-7 business days to post back to the original payment method. Refunds
can be applied via the customer’s preferred method, including card or bank transfer. Shipping
instructions and the return address will be provided upon contacting customer service. Please include
photos if the product arrives damaged.
Click here
to view our complete return policy for more details.
Shipping Policy
Customers may contact us by phone or email anytime to inquire about the status of their order. While we may not always have a tracking link available before the order ships, we are happy to check its current status for you. If an item is never received, please contact us immediately. We will promptly file a claim on your behalf and ship a replacement to ensure you receive your product as soon as possible. Click here to view our complete Shipping policy for more details.
Frequently Asked Questions
What is the HUUM UKU Extension Box?
The HUUM UKU Extension Box is a wall-mounted accessory required for all HUUM sauna heaters over 12kW when using UKU controls.
Why do I need the extension box?
The extension box ensures compatibility and proper functionality of UKU controls with sauna heaters exceeding 12kW.
Can I use it with heaters under 12kW?
No, the extension box is specifically designed for heaters over 12kW.
What color is the extension box?
The extension box comes in a sleek light grey finish.
Where should the extension box be installed?
It is wall-mounted and should be installed near the heater, following the manufacturer’s guidelines.
Where is the extension box manufactured?
It is designed, engineered, and manufactured in Estonia.
Does it support smart heating features?
Yes, when paired with UKU controls, it supports all advanced features, including smart heating.
