HUUM
HUUM UKU Extension Box for Heaters 12kW+
Financing options available at checkout
Form, Performance & Construction
The HUUM UKU Extension Box is required when pairing UKU controls with full-range heaters larger than 11kW (such as 12kW, 15kW, and 18kW models). It expands switching capacity and enables robust commercial operation.
Specifications
- Dimensions: 7"W x 7"D x 6"H (178 x 178 x 152 mm)
- Weight: 3.25 lbs
- Electrical: 240V / 2x63A
- Certifications: CE, SGS, IPX4
- Warranty: Limited 3-Year Warranty
Shipping & Delivery
Your heater is packed in high-density protective bracing to ensure sensitive electrical coils, controls, and elements arrive in flawless condition.
Complimentary Ground Shipping on all contiguous US orders $150+. Flat $14.95 for standalone small orders under $150.
When ordered alongside a sauna kit, your heater, stones, and controls are palletized and synchronized to arrive with your sauna delivery.
Manufacturer Warranty & Guarantee
Epic Sauna is an authorized direct retail partner for HUUM. Your purchase includes 100% genuine factory-certified merchandise with complete manufacturer warranty coverage and dedicated parts support.
Provides a 5-year structural warranty on heater body casting and stainless craftsmanship, with 1-year coverage on heating elements.
Returns & Cancellations
Eligible items in brand-new, uninstalled condition with complete original packaging, manuals, and pallet/crate strapping may be returned within 30 days of delivery.
Due to specialized pallet/crate packaging, technical factory inspection, and re-warehousing protocols, discretionary returns are subject to a 15% to 20% manufacturer restocking fee.
Order Cancellations Prior to Dispatch: In-stock heaters and accessories may be cancelled at zero penalty prior to warehouse departure. For made-to-order saunas, cancellations within 48 hours of order placement receive a 100% refund; cancellations requested after timber machining has commenced are subject to a 10% material handling fee if production cannot be paused.
Return Freight & Discretionary Returns: For customer-initiated returns (buyer's remorse, incorrect sizing, or site condition changes), the customer is responsible for actual return freight shipping costs. If requested, our logistics team can coordinate return freight booking under our negotiated corporate volume carrier rates and deduct the cost from your net refund.
Zero-Fee Transit Damage Guarantee: Restocking fees never apply to items damaged during transit or verified manufacturer defects. If damage is noted upon delivery on the carrier's Bill of Lading (BOL), notify support@epicsauna.com with photos within 48 hours and we will dispatch replacement components or assemblies at 100% factory expense.
Non-Returnable Items: Saunas, heaters, or electronic controls that have been assembled, wired, installed, or fired cannot be returned due to safety and electrical certification standards.
Specifications & Downloads
Licensed Electrician Rough-In Specifications available. View breaker sizing, wire gauges, and clearance diagrams:
Electric sauna heaters operate on 240V single-phase power (or 208V commercial 3-phase) on dedicated circuit breakers. Always verify exact breaker amperage, wire gauge, and sensor placement with your licensed electrical contractor prior to rough-in.
Planning Your Electrical & Site Foundation?
High-performance saunas require dedicated 240V circuit sizing, breaker verification, and level base preparation. Our certified specialists review your layout specs, calculate heater cubic footage, and coordinate curbside freight scheduling.
