1 / 2 UKU Extension Box for Heaters 12kW and over
- Free shippingUS, Canada & Europe
- 14-day returnsRefunds within 30 days
- Pay by invoiceBank transfer, 3 days to pay
- WarrantyCovered by the manufacturer
Estimated delivery . Shipping · Returns · Warranty
Questions? Talk to a sauna specialist: +1 (408) 320-0181About this product
Optimize your high-capacity sauna system with our essential heater extension box, designed for units rated 12kW and above. This durable control accessory ensures safe power distribution and long-term electrical reliability for your professional or home sauna setup.
When installing a high-power sauna system, electrical safety and efficiency are the top priorities. Our sauna heater extension box is a critical component for any sauna setup utilizing heating elements rated at 12kW or greater. Engineered to integrate seamlessly with your control interface, this unit efficiently manages high-amperage loads, ensuring your sauna reaches your desired temperature safely and consistently. Whether you are upgrading your current wellness space or installing a new high-performance system, this extension unit is a mandatory requirement for maintaining the electrical integrity of your heater installation.
Reliable Power Management for High-Capacity Saunas
Designed for durability and technical precision, this control accessory handles the demanding electrical requirements of high-capacity heating elements. By distributing power effectively, the unit prevents system strain and promotes longevity for both your control interface and your heating elements. Its compact, moisture-resistant design allows for a discreet installation, keeping your sauna aesthetic clean while providing the robust electrical support necessary for consistent heat sessions.
Technical Specifications and Features
This extension box is built to rigorous safety standards to provide years of reliable service in your wellness environment. Key features include:
- Required for safe operation of sauna heaters 12kW and higher
- Operating Voltage: 240V
- Circuit Breaker Amperage: 2 x 63
- Compact dimensions: 7" W x 4" D x 10" H
- Lightweight construction at just 3.25 lbs
- Includes a comprehensive installation and operation manual
- Backed by a 5-year limited warranty for complete peace of mind
Ensure your sauna operates at peak performance with the correct electrical infrastructure. A properly managed power supply is essential for the longevity of your sauna investment and the safety of your home. Our team is ready to assist you in getting your high-power sauna system up and running securely. Order your essential extension box today to enjoy the reliable, deep-soothing heat your sauna was designed to provide.
Specifications
| Model | UKU Ext Box |
|---|---|
| Voltage | 240 |
| Circuit Breaker Amperage | 2 x 63 |
| Weight | 3.25 lbs |
| Width | 7" (178mm) |
| Depth | 4" (101mm) |
| Height | 10" (254mm) |
Shipping, payment & returns
- 1Place your orderChoose bank transfer at checkout. Your invoice and bank details appear instantly and are emailed to you.
- 2Pay within 3 daysACH or domestic wire in the US, international wire in USD or another currency. Unpaid orders cancel automatically.
- 3We process and shipProcessing takes 1–5 business days after payment, then delivery takes 7–12 business days. Shipping is free.
Import duties, VAT and customs fees outside the US, where applicable, are the recipient’s responsibility. Return requests within 14 days of delivery; approved refunds within 30 days. Optional shipping protection ($99) is available at checkout. See the shipping and return policies.
