HUUM DROP 9kW Electric Sauna Heater | Complete Package Options

Award-Winning Water-Drop Design

The DROP’s sculptural shape was inspired by a drop of water and earned international design recognition, giving your sauna a more refined architectural focal point.

Powerful 9kW Performance

The DROP 9kW is designed for larger sauna rooms that need more output than smaller wall-mounted heaters can provide.

Generous Stone Capacity

With approximately 122 lbs / 55 kg of sauna stones, the DROP creates steady heat retention and soft, satisfying steam for traditional sauna sessions.

Authentic Löyly

Pour water over the heated stones to create the steam, humidity, and atmosphere that define a traditional Finnish-style sauna experience.

Compact Wall-Mounted Design

The wall-mounted design helps preserve floor space while still providing the heat output and stone mass needed for a larger sauna room.

UKU Control Compatibility

Pair your DROP 9kW with a required HUUM UKU control system for precise temperature management and optional WiFi app control depending on the selected UKU model.

Designed and Crafted in Estonia

HUUM heaters are known for blending Nordic design, stainless steel construction, and traditional sauna principles in a clean, sculptural form.

What Makes HUUM DROP Different?

Design-Forward Heat with More Exposed Stones

The HUUM DROP series is built around the idea that an electric heater can be both functional and beautiful.

Its rounded water-drop shape brings softness to the angular lines of a sauna interior, while the exposed stone design allows more stone surface area to participate in the heat and steam experience. Instead of hiding the stones inside a plain metal box, the DROP makes them part of the sauna’s visual and sensory experience.

For homeowners who care about both design and authentic sauna performance, the DROP 9kW offers a compelling balance: compact wall-mounted installation, generous stone capacity, strong heat output, and a more elevated presence inside the sauna.

HUUM DROP 9kW Sauna Heater

Premium wall-mounted electric sauna heater with stainless steel construction and water-drop-inspired design.

Wall-Mount Bracket

Included wall-mount bracket supports proper heater installation according to HUUM requirements.

Heat Reflector

Included heat reflector supports proper installation and heat management for the DROP 9kW.

Installation & Operation Manual

Manufacturer documentation included for installation, safety clearances, operation, and maintenance.

Required but Sold Separately

• HUUM UKU Control System
  
• HUUM Sauna Stones
  
• Optional HUUM DROP Safety Rail
  
• Optional HUUM DROP Drip Tray
  

The standalone DROP 9kW heater does not include the controller or sauna stones. These items are required for operation and should be selected from the add-ons above when building your heater package.

General

Brand: HUUM

Model: DROP 9

Heater Type: Electric Sauna Heater

Mounting Style: Wall-Mounted

Power Rating: 9kW

Construction: Stainless Steel

Country of Origin: Estonia

Recommended Use: Larger home saunas, outdoor sauna kits, custom sauna rooms, and traditional sauna spaces

Sauna Room Sizing

Recommended Sauna Room Size: Approx. 283–460 adjusted cu. ft.

Metric Range: Approx. 8–15 m³

Maximum Temperature: Up to 230°F


Important Sizing Note: Glass, tile, stone, brick, log walls, and other cold surfaces can increase adjusted room volume. When in doubt, contact NW Immersion before purchase so we can help confirm proper sizing.

Electrical

Supply Voltage: 240V

Phase: Single Phase

Amperage: Approx. 37.5A

Circuit Breaker Amperage: 50A

Recommended Wire Size: 8 AWG

Professional Installation: Required by a licensed electrician

Required Control: HUUM UKU Control System

The HUUM DROP 9kW must be installed by a licensed electrician according to the official HUUM installation manual, local code, and all applicable safety requirements. Always confirm final breaker, wiring, and installation requirements with the official manual and your electrician.

Stone Capacity

Stone Capacity: Approx. 122 lbs / 55 kg

Current Required Stone Package: 4 boxes of HUUM sauna stones

Stone Size: 5–10 cm / approx. 2–4"

Stones Required: Yes

Stones Included with Base Heater: No

Required for Operation: HUUM sauna stones must be added separately

The HUUM DROP 9 requires sauna stones for safe operation, steady heat retention, and authentic löyly.

Dimensions & Weight

Width: 15.4"

Depth: 13.2"

Height: 23.3"

Heater Weight: Approx. 24.9 lbs

Heater Construction: Stainless steel

Always confirm final clearances with the official HUUM installation manual before installation. HUUM strongly recommends including a safety railing in the sauna, either custom-built or using HUUM’s safety rail accessory.

Plan your HUUM DROP installation with helpful manufacturer resources, including heater manuals, UKU control documentation, main module instructions, wiring diagrams, and installation videos.

Before installation, we recommend sharing these resources with your licensed electrician and sauna installer so they can review heater placement, electrical requirements, control setup, stone loading, clearances, and safety guidelines in advance.

Always follow the official HUUM installation manuals, local electrical code, and guidance from your licensed electrician. NW Immersion is also here to help with heater sizing, package selection, and general installation planning before your order ships.

Click Here for the HUUM Drop Installation & Owner's Manual

Click here for Video on Installing the HUUM Drop Heater

Click Here for Video on Installing HUUM Drop Heating Elements

Click Here for the HUUM UKU Control Installation & Owner's Manual

Click Here for Video on Installing the UKU Main Module

Click Here for Video on the UKU Control Installation

Click Here for Video on how to connect the UKU Control to WiFi

Superior Steam & Award-Winning Design

The HUUM Drop sauna heater combines exceptional steam quality with minimal metal use, ensuring heat primarily from the stones and maximizing beneficial negative ions. With a distinct drop-shaped design, the heater earned the Red Dot product design award, adding elegance and functionality to any sauna space. Its ample rock capacity creates a gentle, restorative steam experience.

Flexible Control & Powerful Performance

Available in 4.5kW to 9kW models, the HUUM Drop series supports local and WiFi-enabled controls for flexible usage. Capable of reaching up to 230°F, it delivers faster, efficient heating compared to other models, making it ideal for both home and commercial setups.

• Free Shipping: This order qualifies for free shipping within the contiguous United States.
• Processing Time: In-stock items typically leave the warehouse within 1–3 business days. This is the processing period before transit, not the final delivery time.
• Confirm Availability: Inventory can change quickly. Please call, text, or email NW Immersion before ordering if you need confirmation of current stock or have a specific delivery deadline.
• Multiple Packages: The heater, sauna stones, controls, and accessories may ship in separate boxes or on separate pallets. Packages may arrive on different days.
• Tracking: Tracking information will be emailed for each shipment as soon as it leaves the warehouse.
• Inspect Upon Arrival: Check every package for visible damage before accepting delivery. Photograph any damage and contact NW Immersion promptly so we can assist.

Questions about availability, delivery, heater sizing, controls, or installation requirements? Our U.S.-based sauna specialists are available by phone, text, or email.

Click Here for the HUUM Manufacturer Warranty

HUUM Manufacturer Warranty

Backed by HUUM’s manufacturer warranty when installed and used according to HUUM’s official instructions.

Warranty coverage may vary by component, installation type, use environment, maintenance, chimney connection, and fuel use. Sauna stones, chimney components, and accessories may each carry their own warranty terms.

As an Authorized HUUM Dealer, NW Immersion is here to help with stove sizing, product selection, delivery coordination, troubleshooting, warranty guidance, and long-term support.

Always refer to the official HUUM warranty documentation included with your stove for complete terms and final coverage details.