HUUM STEEL 9.0 STU Sauna Heater Package

Product Description

HUUM STEEL 9.0 STU Sauna Heater Package offers a comprehensive heater solution designed for home and light commercial saunas. Its compact wall-mounted form factor suits spaces requiring efficient heat distribution without compromising room footprint.

The package centers on the 9 kW electric heater featuring an open stone structure and internal air ducts that speed up heating and ensure balanced steam circulation. Paired with the intuitive UKU control system, it provides adjustable temperature settings, delayed start, and smart heating options for personalized sauna experiences.

Constructed from stainless steel, HUUM combines industrial-quality heating elements with a refined Scandinavian design aesthetic. This model’s durable materials and streamlined appearance make it a strong choice for anyone seeking a reliable, modern sauna heater setup.

Features

STEEL 9.0kW Sauna Heater

• Sleek design
• Suitable for use in saunas with limited space
• Small safety distances
• Heats up to 25% faster due to internal air duct
• Works with UKU controls (sold separately)
• 331-pound stone capacity (required 10 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
• Floor model
• Designed, engineered, and made in Estonia
• Dimensions: 12.6" W (320mm) x 12.6" W (320mm) x 38.4" H (975mm)
• 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 12

• Olivine diabase sauna stones
• Rounded shape to complement heater design
• Durable with high-heat capacity
• Stones range from 1" to 2" (3-5 cm)

Includes

STEEL 9.0kW Sauna Heater

• 9.0kW Sauna Heater
• 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 12

• 330 lbs of 1" to 2" (3-5 cm) Round Sauna Stones

Specifications

Installation & Manuals

We aim to make your installation as easy and seamless as possible. Please find the supporting manuals below to guide you through the setup and operation process.

• STEEL Installation and Operation Manual

• STEEL Elements Required

• UKU Installation and Operation Manual

• UKU Installation Diagram

• UKU Installation Diagram

• UKU Installation Video

• Extension Installation Manual

• Stone Requirements

Shipping

At My Energy Flow, we’re committed to delivering your order with the same care and precision that goes into every product we offer. Our shipping process is designed to be seamless, reliable, and worry-free — giving you full confidence from dispatch to delivery.

📦 Shipping Policy

• Processing Time: Orders are processed within 1–3 business days.
• Shipping Method & Delivery Times: Your product will be delivered curbside within 5–7 business days.
• Freight Delivery: For larger items, our carrier partners will reach out directly to schedule your delivery at a convenient time. We recommend confirming promptly to ensure a smooth experience and avoid any unnecessary storage fees.
• Tracking Details: You’ll receive an order acknowledgment by email once your order is placed, followed by shipping updates and delivery details from our team or supplier.
• Upon Delivery: We kindly ask that you inspect all items carefully. In the event you discover any damages notify us at support@myenergyflow.com immediately so we can assist promptly.

Returns & Warranty

Your peace of mind is as important as your wellness journey. That’s why every product is supported by a carefully defined return and warranty policy — giving you confidence and clarity with every purchase.

🔄 Refund & Return Policy

• Return Window: You may request a return within 30 days of delivery, provided the item is unused, in original packaging, and in re-sellable condition.
• Return Requirements: To help us maintain the highest level of service, all approved returns are subject to a 20% restocking fee. Return shipping costs are the responsibility of the customer, and original or expedited shipping charges are non-refundable.
• How to Start a Return: Email support@myenergyflow.com with your order number, reason for return, and any relevant photos. Once approved, returns must be shipped back within 7 days of authorization.

🛡️ Warranty

• Manufacturer's Warranty: Your purchase is backed by the manufacturer’s warranty, including 1 year against defects in materials and workmanship under normal/residential use.
• Exclusions: Warranty does not cover damage resulting from misuse, improper installation, accidents, unauthorized modifications, or use beyond recommended specifications.
• Support & Claims: To initiate a warranty claim, please email support@myenergyflow.com with your order number, a description of the issue, and relevant photos or videos.

Thank you for choosing My Energy Flow. Your confidence, comfort, and wellness are at the heart of everything we do — and we’re here to support you at every step of your journey. More than a purchase, your order is the beginning of a trusted relationship, and our team is always ready to provide clarity, care, and guidance whenever you need it.