HUUM HIVE 18 18 kW Electric Sauna Heater, 551 lb Stone Capacity

• 18 kW electric sauna heater
• Floor-standing heater design
• Round, center-placement-friendly form
• Stone-emphasizing heater design
• Compatible with UKU sauna control system
• Control with a mobile app (via compatible control system)
• Designed for larger sauna rooms
• Sauna room size range: 636–989 ft³ (18–28 m³)
• Optimum sauna temperature: 140–176°F (60–80°C)
• Steam level: Extended
• Heating speed (up to 158°F / 70°C): Slow
• Requires 551 lb (250 kg) of sauna stones
• Suitable stone diameter: 2–4 in (5–10 cm)
• Stainless steel construction details
• SGS Listed
• Made in Estonia
• Air tunnel included
• Air tunnel supports heating elements
• Air tunnel promotes efficient air movement in the heater
• Adjustable legs included (x4)
• Power cable inputs located on the bottom cover of the heater
• Can be partially mounted inside the sauna bench or sauna floor
• Embedded installation: at least 13 25/32 in (350 mm) must protrude above bench surface
• Embedding flange accessory used to cover edges of the immersion opening
• Safety railing recommended to help prevent accidental contact
• Minimum safety distance A: 7 2/32 in (180 mm)
• Minimum safety distance B: 36 7/32 in (920 mm)
• Height: 29 17/32 in (750 mm)
• Diameter: 22 1/16 in (560 mm)
• Heater weight: 53 lb (24 kg)
• Electrical option listed: 240 V 2~
• Electrical option listed: 208 V 2~
• 240 V output table amperage: 75 A
• 240 V circuit breaker: 50 + 50 A
• 240 V minimum wire size: 6 + 6 AWG
• Power cable must meet UL 62 requirements (against sunlight, water, and oil) in the US
• Power cable must meet CSA 49 requirements (against sunlight, water, and oil) in Canada
• Recommended to connect the unit to the mains without a GFCI breaker
• Junction box must be waterproof
• Junction box location requirement: up to 19 11/16 in (50 cm) from the floor
• Requires a control panel (not included)
• Requires stones (not included)
• Requires a heat-resistant power cable (not included)
• Warranty period (private use): 3 years (electrical heaters)
• Warranty period (commercial use): 1 year (electrical heaters)
• Warranty exclusion: heating elements of electric heaters
• Warranty exclusion: sauna stones

• Model: HIVE 18
• SKU: H1003032
• Power rating: 18 kW
• Sauna room minimum volume: 636 ft³ (18 m³)
• Sauna room maximum volume: 989 ft³ (28 m³)
• Stone requirement: 551 lb (250 kg)
• Stone size range: 2–4 in (5–10 cm)
• Diameter: 22 1/16 in (560 mm)
• Height: 29 17/32 in (750 mm)
• Heater weight: 53 lb (24 kg)
• Minimum safety distance A: 7 2/32 in (180 mm)
• Minimum safety distance B: 36 7/32 in (920 mm)
• Electrical (listed option): 240 V 2~
• 240 V amperage: 75 A
• 240 V circuit breaker: 50 + 50 A
• 240 V minimum wire size: 6 + 6 AWG
• Warranty (private use): 3 years
• Warranty (commercial use): 1 year

The HIVE 18 is built for sauna rooms where heat stability, comfortable steam, and a centerpiece look all matter. Its stone-emphasizing structure is designed around a large stone requirement, helping deliver a steady steam feel that suits longer sessions and higher-use environments. The round, freestanding format supports flexible layouts—especially center placement—so the heater can become the natural gathering point in larger sauna designs.
From a system standpoint, HIVE 18 is meant to be controlled through a dedicated controller setup, keeping operation modern and adjustable while preserving the traditional ritual of ladling water onto stones. The included air tunnel supports airflow and helps the heater operate as intended when the stone load is installed correctly and maintained over time.
HUUM focuses on nature-inspired sauna design and stone-forward heating aesthetics, pairing modern electrical control compatibility with a sculptural build approach. With SGS Listed status and manufacturing in Estonia, the HIVE line is aimed at builders and buyers who want a distinctive heater presence without sacrificing practical installation structure and long-term serviceability expectations.

Typical delivery time: Most Huum orders arrive within 10 business days. Actual timing can vary by destination, carrier scheduling, and product availability.

Order Processing

• Order Verification: After you place an order, we confirm availability with Huum or an authorized distribution partner in our network.
• Payment Authorization: Once availability is confirmed, your payment method is charged.
• Order Placement: We then place the order with the supplier for fulfillment.
• Order Cutoff Time: Orders placed after 2:00 PM CST may begin processing the next business day.

Shipping Rates and Delivery Timeline

• Free Shipping: Shipping is FREE to the continental U.S. (lower 48 states).
• Handling Time: 1 to 10 business days
• Transit Time: 1 to 14 business days
• Affirm Note: Orders paid through Affirm can delay shipping timelines by 5 to 7 days.

Shipment Confirmation and Tracking

• You will receive a shipment confirmation email once your order ships with tracking details.
• Tracking may take up to 24 hours to populate after the label is created.
• The freight carrier may vary based on cost and service quality.
• Most freight carriers attempt to contact you 1 to 2 days before delivery to schedule a drop-off time, but this is not guaranteed.

Delivery Options

Standard Delivery

• Curbside delivery only. You are responsible for bringing the shipment inside.

Optional Upgrades

• White Glove Service: Inside delivery to a room of your choice. Does not include unpacking, assembly, or installation. Adds 2 to 5 business days for scheduling and coordination.
• Premium Installation Service: Inside delivery plus assembly and installation. May include electrical work depending on the product and site conditions. The base fee at checkout covers delivery and initial setup costs. Additional labor may be billed separately. Adds 2 to 5 business days for scheduling and coordination.

Pre Order and Special Order Items

• If an item is pre order or out of stock, we will email or call to confirm you are comfortable with extended shipping times before your payment is processed.
• Estimated timelines are estimates and may change due to production, freight, or carrier factors.
• Outside the lower 48 states: We can often arrange shipping, but it is not part of our standard offering. Contact us for a custom quote.

InHouse Wellness extends the HUUM manufacturer warranty to the original purchaser. Warranty coverage, terms, and remedies are set by HUUM. Any warranty claims should be communicated directly to HUUM.

Warranty Periods (from date of purchase)

Private / residential use

• Electric sauna heaters: 3 years
• Wood-burning heaters: 3 years
• Control units/controllers: 3 years
• Spare parts: 1 year

Commercial use

• Electric sauna heaters: 1 year
• Wood-burning heaters: 1 year
• Control units/controllers: 1 year
• Spare parts: 1 year

Commercial use definition: Includes business use, private use for commercial purposes, or private use exceeding 1,500 hours within a 12-month period.

What HUUM Covers

HUUM’s limited warranty covers defects in materials and workmanship under normal use during the applicable warranty period.

Requirements for Warranty Coverage (Key Points)

• Inspect promptly upon receipt and report any shipping/delivery damage within 7 days (or the authorized dealer’s shorter timeframe, if applicable).
• Products must be installed, connected, operated, and maintained according to HUUM manuals and all applicable local/national building, electrical, and fire-safety codes.
• Electrical products must be installed/connected by a licensed electrician, and proof may be required.
• The installed set must be complete as defined in HUUM documentation.
• The purchase price must be fully paid by the end-user.

How to File a Warranty Claim

• Notify HUUM without delay and no later than 30 days from discovering the defect or damage.
• If a visible defect/damage is discovered after delivery, submit the claim (with photos) before installation.
• Be prepared to provide:
• Product name/model and serial/batch/product number (when available)
• Description of the issue and photos (if possible)
• Description of the environment and conditions where the product was used
• Proof of purchase (invoice/receipt)
• Claims must be submitted within the warranty period.

What’s Not Covered (Common Exclusions)

The limited warranty does not cover defects/damage not caused by HUUM, including:

• Heating elements of electric heaters
• HUUM accessories
• Wood-burning stove door glass and ash grate
• Sauna stones (all heaters)
• Sensors for controllers
• Normal wear and cosmetic defects
• Damage from insufficient ventilation, constant humidity, corrosion/sooting/discoloration, or unsuitable storage/installation location
• Transportation/storage damage (including incorrect storage conditions)
• Failure to follow installation, use, or maintenance instructions
• Incorrectly sized/unsuitable product selection for the application
• Accidents, power surges, extreme weather, fires, earthquakes, or other “acts of God”
• Unauthorized repairs/modifications, non-original parts, or incompatible products
• Regular maintenance, cleaning, and periodic check-ups

When you’re investing in premium wellness equipment, you want more than just a good deal—you want the right partner. Here’s why our customers trust us over anyone else:

• Guaranteed Best Pricing – We work directly with manufacturers, so you never overpay. If you find a lower price, we don’t just match it—we beat it.
• Unbeatable Shipping Times – Even if others claim faster delivery, we win. Your order ships either from our Austin, TX warehouse or straight from the manufacturer—fast, reliable, and trackable.
• White Glove Delivery & Installation – We offer professional delivery, assembly, and installation so your new equipment is set up perfectly from day one.
• U.S.-Based, Real Support – Our team is right here in the USA, ready to help by phone, text, or email—before, during, and long after your purchase.
• Since 2011 – Over a decade of helping health and wellness consumers connect with top brands and the perfect products for their needs.
• Factory Warranties Included – Full manufacturer coverage on every product, plus our help if you ever need to file a claim.
• Exclusive Video & eBook Guides – From maintenance tips to usage tutorials, we give you the knowledge to get the most from your investment.

Bottom line: We don’t just sell equipment—we deliver the fastest shipping, the most reliable support, and the kind of buying experience you’ll tell your friends about.