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HUUM HIVE 15 kW Electric Sauna Heater

$3,088 $5,692Price range: $3,088 through $5,692

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Over 11 kW — a UKU Extension Box is required. Because this heater runs above 11 kW, any UKU control also needs a HUUM UKU Extension Box ($773, sold separately) — a small wall-mounted contactor that safely switches the heater’s higher load. Choose your control below, then add the Extension Box — or source it on your side. Without it, a UKU control won’t run this heater.

SKU: N/A Category: Brand: Product ID: 42133

Description

The HUUM HIVE 15 kW is a powerful, efficient, and commercial-grade electric sauna heater engineered for large home saunas and professional wellness facilities across the United States. Built in Estonia from high-quality stainless steel, this heater delivers exceptional performance and maintains a stable, comfortable sauna climate with smooth, consistent steam.

With its generous stone capacity and high-output heating elements, the HIVE 15 kW heats the room quickly and evenly. When water is poured over the hot stones, the heater produces rich, soft steam—ideal for traditional Finnish sauna sessions as well as humid, high-steam environments. Its clean, modern cylindrical design makes it an eye-catching centerpiece in any contemporary sauna.

For buyers in the U.S. looking to purchase a premium electric sauna heater, the HIVE 15 kW offers a combination of durability, Scandinavian craftsmanship, and long-term reliability. The included air tunnel improves airflow and boosts heating efficiency, while compatibility with HUUM Wi-Fi and GSM smart controllers allows for convenient remote operation from your phone.

The HUUM HIVE 15 kW heater comes with rounded diabase stones — a volcanic-origin mineral known for its fine-grained structure and excellent heat retention. Thanks to their natural density and thermal properties, these stones heat up quickly and release warmth slowly and evenly over time. Their rounded shape allows for tight, compact placement inside the heater, ensuring maximum surface contact and efficient heat transfer. This results in smooth, abundant steam and a stable sauna climate throughout each session.

Perfect for upscale home spas, wellness centers, gyms, boutique hotels, and commercial sauna installations, the HUUM HIVE 15 kW delivers professional performance, elegant design, and an elevated sauna experience.


Complete your heater — choose your control

HUUM electric heaters ship without a control unit or stones. This heater is over 11 kW, so a UKU control also needs a UKU Extension Box (see above). Pick a control from the dropdown above, or shop it on its own page:

Sauna stones (16 boxes, 2–4 in) can be added below, or sourced elsewhere.

Features

  • Elegant design
  • Suitable for commercial use
  • 240V/1PH operation
  • Works with UKU controls — selectable below
  • Works with UKU extension box (sold separately)
  • Large 528 pound stone capacity — 16 boxes required, available below
  • Direct contact between stones and heating elements
  • More exposed stones create a longer and milder heat
  • Stainless steel construction
  • Stainless steel, industrial-quality heating elements​
  • Floor model with adjustable legs
  • Air tunnel shortens heat-up time and increases life of heating elements
  • SGS listed
  • Designed, engineered, and made in Estonia
  • Dimensions: 22"Diameter (560mm) x 29.5"H (750mm)
  • Limited 3-year residential warranty and limited 1-year commercial warranty (excluding elements)

Includes

  • 15.0kW Sauna Heater
  • Adjustable Legs
  • Pre-Installed HIVE Air Tunnel
  • Installation and Operation Manual
  • 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

Specifications

Model HIVE 15
Kilowatt Rating 15.0kW
Minimum Cubic Feet 530
Maximum Cubic Feet 813
Heater Weight 51.3 lbs
Shipping Weight with Sauna Stones 579.3 lbs
240V, Single-Phase Amperage 62.5
Circuit Breaker See Installation and Operation Manual
Wire Size AWG 6 + 6
Diameter 22" (560mm)
Height 29.5" (750mm)

Shipping

This sauna heater ships by freight on a wooden pallet, protected in three-ply cardboard, with a scheduled delivery appointment. The carrier handles delivery only and provides limited assistance at the site. Before shipping, we may contact you to confirm the shipment details and discuss any circumstances that could affect delivery.

Sauna accessories can ship together with your heater to save on shipping — consider adding stones, a control, or care products to your order.

For a freight quote or delivery questions, email [email protected] with the heater model number and your full shipping address.

Technical

Product manuals and reference documents (PDF):

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