HUUM DROP 9.0KW Pkg w/ Wifi Control and Stones

Where sculptural design meets powerful, immersive sauna performance.

The HUUM DROP 9STU Sauna Heater Package brings award-winning European design and advanced heating technology together in one complete solution. Featuring the compact yet powerful DROP 9kW electric heater, UKU digital control (WiFi optional), and premium sauna stones, this all-inclusive package is designed for sauna rooms between 283–460 cubic feet, delivering everything needed to elevate your sauna into a refined wellness retreat.

At the core of this package is the acclaimed HUUM DROP 9kW heater, a wall-mounted unit inspired by the purest element in nature—a drop of water. Its rounded, sculptural silhouette softens the sharp lines of traditional sauna interiors, adding a distinctive architectural focal point while maintaining a compact footprint.

Beyond its striking design, the DROP is engineered for performance. With an impressive stone capacity of up to 122 lbs, it surpasses many traditional wood-burning stoves, producing longer-lasting, softer steam and a more consistent, enveloping heat. The generous rock volume allows bathers to ladle more water over the stones, intensifying steam while maintaining balanced, comfortable temperatures.

Control your sauna experience with the sleek UKU Local digital control, or upgrade to the UKU WiFi control for ultimate convenience. The WiFi option allows you to preheat your sauna remotely from your smartphone—so your ideal temperature is ready the moment you step inside.

Recipient of the prestigious Red Dot Award for Design, the HUUM DROP seamlessly blends minimalist beauty with engineering precision—making it the ideal choice for those who want both aesthetic excellence and superior sauna performance.

For bathers who expect nothing less than the best, the HUUM DROP 9STU delivers an elevated sauna experience with uncompromising style and power.

Drop 9.0kW Sauna Heater

• Unique water drop design
• 240V/1PH operation
• 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 3-year residential warranty and limited 1-year commercial warranty (excluding elements)

UKU 

• Sleek Black control display panel
• Multiple Color Options available (additional charges apply)
• Settable on/off, time, temperature, and delay
• Settable temperature range of 104-230F
• Delayed start up to 48hrs in advance
• Optional Built-in Wi-Fi interface for HUUM mobile app (additional charges apply)
• 8 Language options: English, German, Russian, Italian, Finnish, Estonian, Polish and French
• 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
• Control Console Dimensions: 2.2"W (55mm) x 0.9"D (22mm) x 4.1"H (105mm)
• Main Control Module Dimensions: 3.5"W (90mm) x 2.3"D (58mm) x 5.6"H (142mm)
• Limited 3-year residential warranty and limited 1-year commercial warranty

Stones 24

• Olivine diabase sauna stones
• Rounded shape to complement heater design
• Durable with high-heat capacity
• Stones range from 2" to 4" (5-10 cm)

Drop 9.0kW Sauna Heater

• 9kW Sauna Heater
• Wall-Mount Bracket
• Installation and Operation Manual
• 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

UKU

• Black Control Console
• Main Control Module
• Temperature Sensor
• Door Sensor
• Control Display Panel Cable
• Temperature Sensor Cable
• Door Sensor Cable
• Installation and Operation Manual
• 3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty

Stones 24

• 132 lbs of 2" - 4" (5-10 cm) Round Sauna Stones

Heater

• Package Model: DROP 9STU

• Heater Model: DROP 9.0

• Kilowatt Rating: 9.0 kW

• Recommended Room Size: 283–460 cubic feet

• Heater Weight: 24 lbs

• Shipping Weight (with Stones): 146 lbs

• Electrical Requirements: 240V, Single Phase

• Amperage: 37.5 Amps

• Recommended Wire Size: 8 AWG

• Circuit Breaker: Refer to Installation & Operation Manual

Dimensions:

• Width: 15.4" (390 mm)

• Depth: 13.2" (335 mm)

• Height: 23.3" (590 mm)

UKU Control System

• Minimum Temperature Setting: 104°F

• Maximum Temperature Setting: 230°F

• Shipping Weight: 20 lbs

Console Dimensions

• Width: 2.2" (55 mm)

• Depth: 0.9" (22 mm)

• Height: 4.1" (105 mm)

Main Module Dimensions

• Width: 3.5" (90 mm)

• Depth: 2.3" (58 mm)

• Height: 5.6" (142 mm)

Cables

• Display Panel Cable:

  • Length: 9.8 ft

  • Wire Gauge: 22 AWG

• Temperature Sensor Cable:

  • Length: 16.4 ft

  • Wire Gauge: 24 AWG

• Door Sensor Cable:

  • Length: 16.4 ft

  • Wire Gauge: 24 AWG

HUUM is an award-winning Estonian sauna heater manufacturer known for blending timeless Nordic craftsmanship with modern engineering. Founded in the heart of Estonia—where sauna culture runs deep—HUUM has earned global recognition for its minimalist design, energy-efficient performance, and commitment to elevating the authentic sauna experience.

Each HUUM heater is thoughtfully crafted using high-quality stainless steel and built to deliver exceptionally soft, long-lasting steam. Their signature sculptural designs, such as the Red Dot Award–winning DROP heater, showcase a unique balance of form and function—offering both striking aesthetics and superior thermal performance.

Dedicated to innovation, HUUM also leads the industry in smart sauna technology. Their UKU Wi-Fi–enabled controls allow users to preheat and manage their sauna from anywhere, bringing modern convenience to a centuries-old tradition.

With a focus on sustainability, durability, and user-centered design, HUUM continues to set the standard for premium electric sauna heaters worldwide. Their products reflect a true passion for sauna culture—crafted to enhance your wellness routine with beauty, simplicity, and unparalleled heat quality.

Installation & Operation Manual

Warranty

Stone Placement Video

Stone Requirements

Elements Required

Certificate of Compliance

Size Your Sauna