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Description

HUUM CLIFF 11 electric sauna heater brings 11.0 kW of electric heating power to a slim, stainless-steel floor design sized for 354–566 ft³ sauna rooms. Built to showcase a generous stone surface and engineered for mild, long-lasting steam, CLIFF 11 is designed to fit space-conscious layouts while supporting modern sauna control options.

The CLIFF 11 format is all about balancing a compact footprint with the feel of a stone-forward sauna experience. Its vertical shape is paired with small safety distances to help when your heater placement options are limited. Inside, an internal air tunnel is designed to accelerate heating and support heating-element longevity. The heater’s structure is made to hold a large stone mass, helping deliver a soft, steady steam character when water is ladled onto properly stacked stones.

For planning and installation, CLIFF 11 is specified for steam room volumes from 10–16 m³ (354–566 ft³) and an optimum sauna temperature range of 60–90°C (140–194°F). The heater is designed to be operated with a compatible UKU sauna control system (required separately). Control-panel design options are available in multiple styles, letting you match the control interface to the look of your sauna while keeping the heater itself focused on stone exposure and compact placement.

What’s included is kept straightforward: the set includes the electric sauna heater and adjustable legs. To complete the installation and use the heater as intended, you will also need a compatible UKU sauna control system, 75 kg / 165 lb of sauna stones (stone diameter 3–5 cm / 1.2–2 in), and a heat-resistant power cable appropriate for the installation requirements. The heater can also be embedded into a sauna bench as a design option; when embedded, at least 550 mm of the heater should protrude above the bench surface, and an embedding flange accessory is used to cover the cut edges of the opening.

About HUUM: HUUM focuses on sauna heaters that pair a clean, Nordic-inspired design approach with practical engineering choices for everyday sauna use. CLIFF is designed and manufactured in Estonia, with an emphasis on efficient construction and purposeful material use—such as producing the heater body from stainless-steel sheet cutouts to reduce material waste. The result is a product direction aimed at owners who want modern control compatibility, a stone-forward steam feel, and a form factor suited to tighter sauna layouts—without adding complexity to the heater itself.

NOTE: This heater requires a (1) control panel and (2) 10 boxes of sauna stones - sold separately. To choose yours click the 'Bundle & Upgrade' button

Key Features

  • Electric sauna heater
  • Model: CLIFF 11
  • Floor model design
  • Slim, vertical heater shape
  • Designed for sauna room volume: 10–16 m³
  • Designed for sauna room volume: 354–566 ft³
  • Optimum sauna temperature range: 60–90°C
  • Optimum sauna temperature range: 140–194°F
  • Stone holding capacity: 75 kg
  • Stone holding capacity: 165.4 lb
  • Required stone diameter: 3–5 cm
  • Required stone diameter: 1.2–2 in
  • Stainless steel construction
  • Heater body made from stainless-steel sheet cutouts to reduce material waste
  • Internal air tunnel designed to accelerate heating
  • Internal air tunnel designed to extend heating-element life
  • Designed to provide mild and long-lasting steam with a large stone mass
  • Small safety distances to support installation in smaller sauna rooms
  • Safety distance A: 380 mm
  • Safety distance A: 15 in
  • Safety distance B: 1030 mm
  • Safety distance B: 40.5 in
  • Safety distance C: 270 mm
  • Safety distance C: 10.6 in
  • Heater can be embedded into a sauna bench (design option)
  • When embedded, heater must protrude at least 550 mm above bench surface
  • Embedding flange accessory is used to cover cut rims of the bench opening
  • Safety railing is recommended for added safety and comfort
  • Removable ribs designed to support stone stacking access
  • Power cable input located on the bottom cover of the heater
  • CLIFF 11 is attached to the floor using accompanying brackets
  • Compatible UKU sauna control system is required for operation (sold separately)
  • UKU control panel design options include GLASS
  • UKU control panel design options include CLASSIC
  • UKU control panel design options include WOOD
  • Sauna can be controlled by mobile app when using a compatible UKU system that supports app control
  • Included in the set: electric sauna heater
  • Included in the set: adjustable legs
  • Requires a heat-resistant power cable for installation
  • Power cable requirements reference UL 62 (US) and CSA 49 (Canada)
  • A method to disconnect all poles from mains (circuit breaker) must be installed on the power circuit before the sauna controller
  • Installation electrical work is intended to be performed by a licensed electrician
  • Recommended connection without a GFCI breaker
  • Made in Estonia
  • Design award: Red Dot Design Award (winner 2021)
  • Design award: European Product Design Award (winner 2023)
  • Power output at 240 V: 11.0 kW
  • Power output at 208 V: 8.5 kW
  • Supply voltage option: 240 V 2~
  • Supply voltage option: 208 V 2~
  • Current draw at 240 V: 43.75 A
  • Current draw at 208 V: 37.98 A
  • Circuit breaker at 240 V: 50 A
  • Circuit breaker at 208 V: 50 A
  • Minimum wire size at 240 V: 8 AWG
  • Minimum wire size at 208 V: 8 AWG

Dimensions & Specifications

  • Dimensions (W x D x H): 10.6 in x 10.6 in x 38.4 in
  • Dimensions (W x D x H): 270 mm x 270 mm x 975 mm
  • Weight: 37.5 lb
  • Weight: 17 kg
  • Sauna room size: 354–566 ft³
  • Sauna room size: 10–16 m³
  • Stone capacity: 165.4 lb
  • Stone capacity: 75 kg
  • Output (240 V): 11.0 kW
  • Output (208 V): 8.5 kW
  • Supply voltage: 240 V 2~
  • Supply voltage: 208 V 2~
  • Current draw (240 V): 43.75 A
  • Current draw (208 V): 37.98 A
  • Circuit breaker (240 V): 50 A
  • Circuit breaker (208 V): 50 A
  • Minimum wire size (240 V): 8 AWG
  • Minimum wire size (208 V): 8 AWG
  • Warranty: 3 years (private use)
  • Warranty: 1 year (commercial use)
  • Warranty exclusions: heating elements
  • Model: CLIFF 11
  • UPC/GTIN: 4745090271300

Why Choose HUUM?

If you want a sauna heater that prioritizes stone exposure and gentle steam in a space-conscious footprint, CLIFF 11 is built around that goal. The slim vertical body and reduced safety-distance profile support tighter layouts, while the heater’s stone capacity and structure are intended to deliver a mild, long-lasting steam feel when used with correctly sized stones and proper stacking.
At the brand level, HUUM approaches sauna heating with a modern design language and practical construction choices, including stainless steel build and a manufacturing approach that emphasizes efficient material use. CLIFF is made in Estonia and positioned for owners who want a contemporary heater form factor that still focuses on traditional stone-and-steam performance.
For long-term ownership, CLIFF 11 is designed to work with a required UKU control system, letting you choose a control-panel style that fits your sauna design and enabling app-based control when paired with compatible UKU options. That ecosystem approach keeps the heater focused on steam-room performance while allowing your controls to scale to your preferred experience.

Fast & Free Shipping

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.

Warranty Included

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

The InHouse Wellness Difference

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.

THEM
Real Human Support
Friendly experts here for you via phone, chat, text & email
Offshore, slow or no support
Transparent Pricing
No hidden fees - always best price guaranteed
Surprise markups & fake discounts
Priority Shipping Access
Faster fulfillment from top-tier inventory partners
Standard processing delays
Trusted by Industry Pros
Our customers include athletes, therapists & designers
No notable endorsements
Recognized industry member
Proud member of leading wellness trade groups
No verified affiliations

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