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Deliver soothing heat and nature-inspired style to your sauna with the HUUM HIVE 18.0 kW 240V/1PH Electric Sauna Heater. Built for reliable heat stability, this heater holds a massive 551 lb. stone capacity that supports long sessions in saunas ranging from 636 - 989 ft3 (adj.). The open-air cage design encourages water-pouring and gives you total control over the quality of the steam and humidity levels.
An integrated air tunnel works with the heater’s natural airflow to help your sauna reach temperatures up to 230℉ while prolonging the lifespan of the stones. This heater is safe for direct contact with wooden, tile, and stone floors and can support communal sauna sessions in gyms and spas.
The HUUM HIVE 18kW Electric Sauna Heater requires stones, an UKU controller, and an UKU extension box* for operation. Browse the Suitable Accessories tab above to find these items as well as other personalization pieces like safety rails and embedding flanges.
*A HUUM UKU Extension Box is required for HUUM heaters that require 12kW and up.
1x HUUM Hive 18 kW Sauna Heater
1x HUUM Air Tunnel
1x Pack of HUUM Adjustable Legs
1x HUUM Hive Installation and Operation Manual
ATTENTION: The HUUM HIVE Sauna Heater does NOT include a controller, extension box, or stones. These elements are required for operation. Browse HUUM HIVE Stones, HUUM UKU Controller Packages, and the HUUM UKU Extension Box under Suitable Accessories at the top of this page to complete your setup.
| Model | HIVE 18 |
| Heater Type | Electric |
| Sauna Size Range | 636 - 989 ft3 (adj.) |
| Stone Capacity | 551 lbs |
| Maximum Temperature | 230℉ |
| Kilowatt Rating | 18 kW |
| Heater Weight | 48.5 lbs |
| Shipping Weight w/ Stones | 600 lbs |
| 240V, 1 Ph Amperage | 75 Amps |
| Circuit Breaker Amperage | 50 + 50 Amps |
| Wire Size | 6 + 6 AWG |
| Heater Dimensions | 29.6”H x 22”D |
| Safety Distances* | Installation & Operation Manual |
*Reference Installation & Operation Manual for full specs/wiring diagrams/safety distances
The HUUM Hive 18.0 kW 240V Electric Sauna Heater is recommended for saunas ranging from 636 - 989 ft3 (adj.).
Need assistance? Click the green chat button in the bottom right corner of your screen or call one of our Sauna Experts for help sizing your heater.
ATTENTION: Shipping and delivery times may increase based on seasons and holidays.
We will issue a 100% refund on orders canceled within 4 business days. If an order is canceled after this 4-day grace period ends, there will be a 3% cancellation fee. Please reach out to our support team if you need to cancel your order after it has shipped.
Our heaters include a 30-day return policy.
You can return this product if:
If these requirements are met, your return will be accepted. However, you will be responsible for the return shipping cost and a 20% restocking fee. After we receive the return and it has been inspected at our warehouse, we will refund the card you used for your purchase in accordance with the policy listed above.
The HUUM Hive brings exceptional heat and steam to create the optimal environment for rest and relaxation in your sauna. The minimalist design empowers the stones with top-tier airflow, bringing gentler steam for a pleasant sauna experience.
The massive stone amount of HUUM Hive requires it to be shipped on a wooden pallet. You will receive a tracking number as soon as your order has been shipped out. All our shipments are fully insured. HUUM products are shipped from Chicago. The pallet will be delivered to your curbside. Carrier will call you to set up the delivery of the pallet before delivery. Shipping is free. For white glow delivery or express shipping options, contact us.
The HUUM Hive 18 requires a HUUM UKU Extension Box for operation.
For more electrical and technical requirements, read through the HUUM Hive Installation & Operation Manual.
HUUM Hive 18kW sauna heater is suitable for home saunas up to 989 adjusted cubic feet. Use our calculator or contact if you want to verify the size of your sauna.
We'll check your order details to ensure everything's in place for your heater setup.
You'll receive an email with an estimated lead time and any manuals you'll need.
Our support team is available for any technical questions or guidance post-delivery.
We visited the HUUM factory and made some helpful content for you. Watch our unboxing video and learn more about the electric Hive sauna heaters.
How It Works
Need a bit more help?
Read our Quote Form Tutorial or click the chat icon in the bottom right corner for live assistance.
Thank you. We have received your quote request and will contact you shortly.
Our sauna experts are here to help.
If you have any questions about HUUM, call our toll-free number (725) 777-5484 or talk us on the chat found on the bottom right corner.
Not sure about the sizing of the heater? Use our sauna heater calculator to find out.
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