18.0 kW Heating Capacity: Designed for larger sauna rooms from 636 to 989 cubic feet.

Complete Heater Package: Combines the HIVE 18 heater, UKU control system, UKU Extension Box, and 528 lb of sauna stones.

Residential & Commercial Applications: Manufacturer specifications identify the HIVE 18 as suitable for commercial use in addition to residential installations.

528 lb Stone Capacity: Large cylindrical stone chamber accommodates up to 528 lb of sauna stones.

528 lb of Stones Included: Package includes 528 lb of 2–4 in (5–10 cm) rounded olivine diabase sauna stones.

Floor-Standing Design: Freestanding cylindrical configuration includes adjustable legs for installation and leveling.

Pre-Installed HIVE Air Tunnel: Designed to shorten heat-up time and help increase heating-element longevity.

Direct Stone-to-Element Contact: Open construction positions the sauna stones around the heating elements.

Stainless Steel Construction: Built with stainless steel construction and industrial-quality stainless steel heating elements.

UKU Extension Box Included: Required for this 18.0 kW configuration and included as part of the package.

External UKU Control: Provides digital adjustment of power, operating time, temperature, and delayed start.

104–230°F Control Range: UKU specifications list an adjustable temperature range of 104°F to 230°F.

48-Hour Delayed Start: Allows sauna operation to be scheduled up to 48 hours in advance.

Wi-Fi Optional: Built-in Wi-Fi connectivity for the HUUM mobile app is available as an optional UKU upgrade.

Eight Language Options: Supports English, German, Russian, Italian, Finnish, Estonian, Polish, and French.

Safety Functions: Includes temperature and door sensors, overheat protection, and a child safety lock.

SGS Listed: The supplied specifications identify the HIVE heater as SGS listed.

Made in Estonia: Designed, engineered, and manufactured in Estonia.

Model: HIVE 18STUX PKG

Product Type: Electric Sauna Heater Package

Heater Model: HIVE 18

Installation: Floor-Standing

Application: Residential / Commercial

Heater Output: 18.0 kW

Sauna Room Capacity: 636–989 cu. ft.

Voltage: 240V

Phase: 1-Phase

Amperage: 75A

Wire Size: 6 AWG + 6 AWG

Circuit Breaker: See Installation and Operation Manual

Control System: HUUM UKU

Extension Box: HUUM UKU Extension Box Included

Standard Control Panel: Black

Wi-Fi: Optional, Depending on Selected UKU Configuration

Control Temperature Range: 104–230°F

Delayed Start: Up to 48 Hours

Languages: English, German, Russian, Italian, Finnish, Estonian, Polish, French

Smart Heating: Optional

Stone Capacity: 528 lb

Included Stones: 528 lb

Included Stone Size: 2–4 in (5–10 cm)

Included Stone Type: Rounded Olivine Diabase Sauna Stones

Heater Construction: Stainless Steel

Heating Elements: Industrial-Quality Stainless Steel

Heater Weight: 53.5 lb

Shipping Weight with Sauna Stones: 581.5 lb

Listing: SGS Listed

Country of Manufacture: Estonia

Heater Residential Warranty: Limited 3 Years

Heater Commercial Warranty: Limited 1 Year, Excluding Heating Elements

UKU Residential Warranty: Limited 3 Years

UKU Commercial Warranty: Limited 1 Year

UKU Extension Box Residential Warranty: Limited 3 Years

UKU Extension Box Commercial Warranty: Limited 1 Year

Included

• HUUM HIVE 18 18.0 kW Sauna Heater
• Adjustable Legs
• Pre-Installed HIVE Air Tunnel
• HUUM UKU Black Control Console
• UKU Main Control Module
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable
• Temperature Sensor Cable
• Door Sensor Cable
• HUUM UKU Extension Box
• 528 lb of 2–4 in (5–10 cm) Rounded Sauna Stones
• Installation and Operation Manuals
• Applicable Residential and Commercial Limited Warranties

This package includes the UKU control and UKU Extension Box required for the supplied 18.0 kW configuration. Wi-Fi functionality and alternative UKU control-panel options are available as upgrades at additional cost.

HUUM HIVE 18 Sauna Heater

Diameter: 22 in (560 mm)

Height: 29.5 in (750 mm)

Overall Dimensions: 22 Dia. × 29.5 H in (560 × 750 mm)

Heater Weight: 53.5 lb

HUUM UKU Control Console

Width: 2.2 in (55 mm)

Depth: 0.9 in (22 mm)

Height: 4.1 in (105 mm)

Overall Dimensions: 2.2 W × 0.9 D × 4.1 H in (55 × 22 × 105 mm)

HUUM UKU Main Control Module

Width: 3.5 in (90 mm)

Depth: 2.3 in (58 mm)

Height: 5.6 in (142 mm)

Overall Dimensions: 3.5 W × 2.3 D × 5.6 H in (90 × 58 × 142 mm)

HUUM UKU Extension Box

Width: 7 in (178 mm)

Depth: 4 in (101 mm)

Height: 10 in (254 mm)

Overall Dimensions: 7 W × 4 D × 10 H in (178 × 101 × 254 mm)

Extension Box Weight: 3.25 lb

Control & Sensor Cables

Display Panel Cable: 9.8 ft | 22 AWG

Temperature Sensor Cable: 16.4 ft | 24 AWG

Door Sensor Cable: 16.4 ft | 24 AWG

Shipment: This sauna heater system ships via scheduled freight delivery. The shipment arrives secured on a wooden pallet and protected with three-ply cardboard packaging.

Delivery: A delivery appointment is required. The freight carrier provides delivery service only, with limited assistance available at the delivery location.

Delivery Requirements: Prior to shipment, we may contact you to confirm delivery details and identify any access restrictions or special handling requirements that may affect delivery.

Shipping Rate: Shipping costs are determined based on location.

Accessory Freight: Eligible sauna accessories may be consolidated with the heater shipment to help minimize separate freight charges.

HUUM-HIVE-Sauna-Heater-IOM.pdf