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Regular price $2,730.00
Regular price Sale price $2,730.00
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The design of the HUUM DROP 4.5 sauna heater is inspired by the purest element in nature – a drop of water. Its rounded design softens and compliments the angular interior of a classic sauna, giving it a touch of elegance. But DROP isn’t only about the looks. This 4.5kW compact wall-mounted electric sauna heater is engineered for sauna rooms up to 247 cubic feet (CF).

This compact wall-mounted heater has a large 122-pound rock capacity, more than most wood-burning stoves for a more intense steam sauna.

Winner of the prestigious Red Dot Award in Europe for design, the HUUM DROP combines sculptural beauty with engineering excellence. It's exceptionally large rock capacity allows the sauna bather to ladle more water onto the stones for a more intense bathing experience while creating a more consistent, soft high heat. 

The available Wi-Fi control lets you preheat your sauna from anywhere. For bathers who want the absolute best sauna heater.


  • Unique water drop design
  • 240V/1PH operation
  • For sauna rooms from 106 to 247 cu. ft.
  • Works with UKU controls (sold separately)
  • 122 pound stone capacity (required 4 boxes sold separately)
  • 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​
  • Wall-mounted design
  • Designed, engineered, and made in Estonia
  • Dimensions: 15.4"W (390mm) x 13.2"D (335mm) x 23.3"H (590mm)
  • SGS Listed
  • Limited 5-year warranty (excluding elements)
  • 4.5kW sauna heater
  • Wall-mount bracket
STONES: 4 Boxes of Small (5-10 cm) Sauna Heater Stones (enough to fill the capacity)
  • Model Stones 24
  • Each set is 33 lbs of 2" - 4" (5-10 cm) rounded olivine sauna stones. 

The stylish UKU Local sauna controller makes sauna bathing convenient and easy. Connect it to your lighting, ventilation, and sauna heater to regulate everything through a single control unit. To ensure a safe sauna experience, UKU includes a door sensor, overheating protection, and child safety lock.
  • Sleek control display panel
  • For heaters up to 18kW (over 9kW requires extension box)
  • Settable on/off, time, temperature, and delay
  • Settable temperature range of 122-230F
  • Delayed start up to 48hrs in advance
  • Built-in Wi-Fi interface for HUUM mobile app
  • 6 Language options: English, German, Russian, Italian, Finnish, and Estonian
  • Unlimited number of users
  • Notification when set temperature is reached
  • Inside/outside sauna room installation
  • Optional smart heating setting
  • Available decorative control display panels
  • Displays set temperature and room temperature
  • Temperature sensor
  • Door sensor to keep the heat inside the room
  • Remotely located main control module
  • Connects to lights and ventilation
  • Overheat protection
  • Child safety lock
    • Main control module, 5.59" x 3.54" x 2.28"
    • Temperature sensor
    • Door sensor
    • Control display panel cable, 9.84', 22AWG
    • Temperature sensor cable, 16.4', 24AWG
    • Door sensor cable, 16.4', 24AWG
    • Installation and operation manual
    • 5-Year limited warranty

    Model DROP 4.5
    Kilowatt Rating 4.5 KW
    Minimum Cubic Feet 106 CF
    Maximum Cubic Feet 247 CF
    Heater Weight 24 lbs
    Shipping Weight with Sauna Stones 146 lbs
    240V, Single Phase Amperage 18.8 Amps
    Circuit Breaker Amperage 30 Amps
    Wire Size 10 AWG
    Width 15.4"W (390mm)
    Depth 13.2"D (335mm)
    Height 23.3"H (590mm)

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