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We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

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Includes

What Is Included

10.5 KW

Included with purchase

10.5 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

6 KW

Included with purchase

6.0 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

9 KW

Included with purchase

9.0 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

3.5 KW

Included with purchase

3.5 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 133 lb stones (quantity 4 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

Package contents and sold-separately requirements can vary by selection; use the row for the exact configuration chosen above.

Technical Specifications

Technical Specifications

Model & Application

Model & Application
Brand

HUUM

Catalog Product

HUUM CLIFF & CLIFF Mini Electric Sauna Heater | 3.5 to 10.5 kW

Heater Type

Electric sauna heater

Model Number

240 V / 1 phase: CLIFF 11; 6 kW / 240 V / 1 phase: CLIFF 6; 9 kW / 240 V / 1 phase: CLIFF 9; 240 V / 1 phase: CLIFF MINI 4

SKU / Part Number

240 V / 1 phase: H1004032; 6 kW / 240 V / 1 phase: H1004012; 9 kW / 240 V / 1 phase: H1004022; 240 V / 1 phase: H1005012

Sauna Sizing

Sauna Sizing
Maximum Room Volume

240 V / 1 phase: 566 ft³; 6 kW / 240 V / 1 phase: 318 ft³; 9 kW / 240 V / 1 phase: 460 ft³; 240 V / 1 phase: 177 ft³

Minimum Room Volume

240 V / 1 phase: 354 ft³; 6 kW / 240 V / 1 phase: 177 ft³; 9 kW / 240 V / 1 phase: 283 ft³; 240 V / 1 phase: 106 ft³

Electrical

Electrical
Minimum Circuit

240 V / 1 phase, 9 kW / 240 V / 1 phase: 50 A; 6 kW / 240 V / 1 phase: 30 A; 240 V / 1 phase: 20 A

Phase

1 phase

Rated Current

240 V / 1 phase: 43.75 A; 6 kW / 240 V / 1 phase: 25 A; 9 kW / 240 V / 1 phase: 37.5 A; 240 V / 1 phase: 14.58 A

Rated Power

6 kW / 240 V / 1 phase: 6 kW; 9 kW / 240 V / 1 phase: 9 kW

Supply Voltage

240 V

Wire Size

240 V / 1 phase, 9 kW / 240 V / 1 phase: 8 AWG; 6 kW / 240 V / 1 phase: 10 AWG; 240 V / 1 phase: 12 AWG

Dimensions & Weight

Dimensions & Weight
Assembled Dimensions

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 11.25" W (285.8mm) x 11.25" W (285.8mm) x 38.25" H (971.5mm); 240 V / 1 phase: 6.75" W (171.5mm) x 11.5" D (160mm) x 38.5" H (978mm)

Heater Depth

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 10.63 in (270 mm); 240 V / 1 phase: 6.3 in (160 mm)

Heater Height

38.39 in (975 mm)

Heater Weight

17 kg

Heater Width

10.63 in (270 mm)

Minimum Host-Room Height

85.63 in

Product Weight

240 V / 1 phase: 37.5 lbs (17kg); 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 35 lbs (15.87kg); 240 V / 1 phase: 33 lbs (14.96kg)

Installation Clearances

Installation Clearances
Ceiling-Clearance Reference Height Above Finished Floor

38.39 in

Ceiling-Clearance Reference Plane

Top Of Rocks

Left-Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Right-Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Combustible Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Minimum Installation Envelope Width

240 V / 1 phase: 40.55 in (1030 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 15.35 in (390 mm); 9 kW / 240 V / 1 phase: 29.53 in (750 mm)

Top of Rocks Above Finished Floor

38.39 in (975 mm)

Included & Required

Included & Required
Included Components

240 V / 1 phase: 10.5kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 6 kW / 240 V / 1 phase: 6.0kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 9 kW / 240 V / 1 phase: 9.0kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 240 V / 1 phase: 3.5kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements)

Required, Not Included

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: UKU Control, 165 lbs stones (Qty 5 x 33 lbs of 1" - 2" (3-5 cm) stones boxes); 240 V / 1 phase: UKU Control, 133 lbs stones (Qty 4 x 33 lbs of 1" - 2" (3-5 cm) stones boxes)

Certifications

Certifications
Certifications & Listings

CE, IPX4, SGS

Warranty

Warranty
Residential Warranty

3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

Conflict-free exact-model facts verified from the current manual, manufacturer surface, or exact current distributor record; variation-specific values are labeled.

How It Fits

How This Product Fits the System

What it is used for

An electric sauna heater that heats the sauna room and stone mass for traditional löyly. Choose the output from adjusted room volume, then match the exact voltage, phase, circuit, controls, stones, clearances, and ventilation.

What to plan

  • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
  • Model-specific verified values are organized in the Technical Specifications tab; selection-specific values are labeled there.
  • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
  • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
  • The current exact-model manual controls final installation. Use the product's Manuals & Documents tab and a qualified installer.

Required separately

These items are identified as operational dependencies, not optional add-ons.

Designed to work with

Exact-family replacements and system components are linked here with their specific use.

Optional accessories

These are vendor suggestions. A suggestion is not proof of fit or a requirement.

Sauna packages that name this heater

These package sources explicitly name the heater; verify current selection and installation requirements.

Other heater options

These are comparison alternatives, not drop-in substitutes.

Verified model-specific facts are kept in Technical Specifications, while current manuals and support files are kept in Manuals & Documents. If an exact source does not resolve a value or relationship, this page leaves it open instead of borrowing from a neighboring model.

Attachments
Legacy manuals for older installations

Use these only when the document revision matches the installed product.

Gallery

HUUM CLIFF & CLIFF Mini Electric Sauna Heater | 3.5 to 10.5 kW

HUUM CLIFF brings a tall, open stone surface to rooms where floor area and clearances are tight. Choose wall-mounted CLIFF Mini 3.5 kW or floor-standing CLIFF 6, 9, and 10.5 kW for current U.S. manual room ranges from 106 to 566 cubic feet. UKU control and model-specific 1 to 2-inch stones are required and sold separately.

Build A Quote:

Choose a HUUM UKU controller (required)

A compatible HUUM UKU controller package is required. These seven packages are the exact active identities and MAP prices in the current US IDM. Verify the supplied hardware generation before using generation-specific manuals, sensors, or service parts.

I already own a compatible HUUM UKU controller package UKU Local, Black +$1,062.00 UKU Local, Wood +$1,375.00 UKU Wi-Fi, Black (recommended) +$1,324.00 UKU Wi-Fi, Wood +$1,637.00 UKU Wi-Fi, Glass +$1,724.00 UKU Wi-Fi, Mirror +$1,987.00 UKU Wi-Fi, Gold +$1,987.00 UKU Wi-Fi, Black (recommended)(+$1,324.00)
Add the required stones: CLIFF Mini 3.5 kW

CLIFF Mini 3.5 kW requires 132 lb of approved 1–2 inch stones. This selection supplies 4 exact IDM boxes (132 lb) at $80 per box.

I already have the approved 1–2 inch stones for CLIFF Mini 3.5 kW 4 × 33-lb boxes of HUUM STONES 12 (132 lb supplied) +$320.00 4 × 33-lb boxes of HUUM STONES 12 (132 lb supplied)(+$320.00)
Add the required stones: CLIFF 6/9/10.5 kW

CLIFF 6/9/10.5 kW requires 165 lb of approved 1–2 inch stones. This selection supplies 5 exact IDM boxes (165 lb) at $80 per box.

I already have the approved 1–2 inch stones for CLIFF 6/9/10.5 kW 5 × 33-lb boxes of HUUM STONES 12 (165 lb supplied) +$400.00 5 × 33-lb boxes of HUUM STONES 12 (165 lb supplied)(+$400.00)
Add Flange to embed heater in bench or floor
None Embedding Flange for CLIFF/STEEL Series Sauna Heaters +$331.00
Rail C – Safety Rail for CLIFF Series Sauna Heaters
None Safety Rail for CLIFF Series Sauna Heaters +$409.00
Add Reflect C – Allows for heater installation closer to wall
None Reflec C - Allows for heater installation closer to wall +$294.00
Cable Extensions

Add flexibility to your installation with 75′ cables.

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Why buy a HUUM Sauna Heater from Sauna Marketplace?

Current HUUM product guide

Use the current Product Guide and Manuals & Documents sections on this page for verified model selection, sizing, installation, and warranty information.

Best Price and Service Guarantee

Sauna Marketplace offers legendary customer service and support. Odds are you landed here from a referral — because we don’t advertise.

That doesn’t mean you should have to pay more. We always honor the lowest prices allowed by our manufacturers. If you find a lower advertised price from an authorized dealer, send us a screenshot and we’ll match it.

We want you to feel great about your purchase for decades. That’s why we also offer free shipping on sauna accessories for life with the purchase of any sauna or sauna heater on Sauna Marketplace.

Shop Saunas | Shop Sauna Heaters

Includes

What Is Included

10.5 KW

Included with purchase

10.5 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

6 KW

Included with purchase

6.0 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

9 KW

Included with purchase

9.0 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 165 lb stones (quantity 5 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

3.5 KW

Included with purchase

3.5 kW sauna heater 2 prop blocks (for removal of sauna rib slats) installation and operation manual.

Required separately

UKU control, 133 lb stones (quantity 4 × 33 lb of 1" - 2" (3–5 cm) stones boxes).

Package contents and sold-separately requirements can vary by selection; use the row for the exact configuration chosen above.

Technical Specifications

Technical Specifications

Model & Application

Model & Application
Brand

HUUM

Catalog Product

HUUM CLIFF & CLIFF Mini Electric Sauna Heater | 3.5 to 10.5 kW

Heater Type

Electric sauna heater

Model Number

240 V / 1 phase: CLIFF 11; 6 kW / 240 V / 1 phase: CLIFF 6; 9 kW / 240 V / 1 phase: CLIFF 9; 240 V / 1 phase: CLIFF MINI 4

SKU / Part Number

240 V / 1 phase: H1004032; 6 kW / 240 V / 1 phase: H1004012; 9 kW / 240 V / 1 phase: H1004022; 240 V / 1 phase: H1005012

Sauna Sizing

Sauna Sizing
Maximum Room Volume

240 V / 1 phase: 566 ft³; 6 kW / 240 V / 1 phase: 318 ft³; 9 kW / 240 V / 1 phase: 460 ft³; 240 V / 1 phase: 177 ft³

Minimum Room Volume

240 V / 1 phase: 354 ft³; 6 kW / 240 V / 1 phase: 177 ft³; 9 kW / 240 V / 1 phase: 283 ft³; 240 V / 1 phase: 106 ft³

Electrical

Electrical
Minimum Circuit

240 V / 1 phase, 9 kW / 240 V / 1 phase: 50 A; 6 kW / 240 V / 1 phase: 30 A; 240 V / 1 phase: 20 A

Phase

1 phase

Rated Current

240 V / 1 phase: 43.75 A; 6 kW / 240 V / 1 phase: 25 A; 9 kW / 240 V / 1 phase: 37.5 A; 240 V / 1 phase: 14.58 A

Rated Power

6 kW / 240 V / 1 phase: 6 kW; 9 kW / 240 V / 1 phase: 9 kW

Supply Voltage

240 V

Wire Size

240 V / 1 phase, 9 kW / 240 V / 1 phase: 8 AWG; 6 kW / 240 V / 1 phase: 10 AWG; 240 V / 1 phase: 12 AWG

Dimensions & Weight

Dimensions & Weight
Assembled Dimensions

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 11.25" W (285.8mm) x 11.25" W (285.8mm) x 38.25" H (971.5mm); 240 V / 1 phase: 6.75" W (171.5mm) x 11.5" D (160mm) x 38.5" H (978mm)

Heater Depth

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 10.63 in (270 mm); 240 V / 1 phase: 6.3 in (160 mm)

Heater Height

38.39 in (975 mm)

Heater Weight

17 kg

Heater Width

10.63 in (270 mm)

Minimum Host-Room Height

85.63 in

Product Weight

240 V / 1 phase: 37.5 lbs (17kg); 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: 35 lbs (15.87kg); 240 V / 1 phase: 33 lbs (14.96kg)

Installation Clearances

Installation Clearances
Ceiling-Clearance Reference Height Above Finished Floor

38.39 in

Ceiling-Clearance Reference Plane

Top Of Rocks

Left-Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Right-Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Combustible Side Clearance

240 V / 1 phase: 14.96 in (380 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 2.36 in (60 mm); 9 kW / 240 V / 1 phase: 9.45 in (240 mm)

Minimum Installation Envelope Width

240 V / 1 phase: 40.55 in (1030 mm); 6 kW / 240 V / 1 phase, 240 V / 1 phase: 15.35 in (390 mm); 9 kW / 240 V / 1 phase: 29.53 in (750 mm)

Top of Rocks Above Finished Floor

38.39 in (975 mm)

Included & Required

Included & Required
Included Components

240 V / 1 phase: 10.5kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 6 kW / 240 V / 1 phase: 6.0kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 9 kW / 240 V / 1 phase: 9.0kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements); 240 V / 1 phase: 3.5kW sauna heater 2 prop blocks (for removal of sauna rib slats) Installation and operation manual 5-Year limited warranty (excluding elements)

Required, Not Included

240 V / 1 phase, 6 kW / 240 V / 1 phase, 9 kW / 240 V / 1 phase: UKU Control, 165 lbs stones (Qty 5 x 33 lbs of 1" - 2" (3-5 cm) stones boxes); 240 V / 1 phase: UKU Control, 133 lbs stones (Qty 4 x 33 lbs of 1" - 2" (3-5 cm) stones boxes)

Certifications

Certifications
Certifications & Listings

CE, IPX4, SGS

Warranty

Warranty
Residential Warranty

3-Year Limited Residential Warranty and 1-Year Limited Commercial Warranty (Excluding Elements)

Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

Conflict-free exact-model facts verified from the current manual, manufacturer surface, or exact current distributor record; variation-specific values are labeled.

How It Fits

How This Product Fits the System

What it is used for

An electric sauna heater that heats the sauna room and stone mass for traditional löyly. Choose the output from adjusted room volume, then match the exact voltage, phase, circuit, controls, stones, clearances, and ventilation.

What to plan

  • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
  • Model-specific verified values are organized in the Technical Specifications tab; selection-specific values are labeled there.
  • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
  • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
  • The current exact-model manual controls final installation. Use the product's Manuals & Documents tab and a qualified installer.

Required separately

These items are identified as operational dependencies, not optional add-ons.

Designed to work with

Exact-family replacements and system components are linked here with their specific use.

Optional accessories

These are vendor suggestions. A suggestion is not proof of fit or a requirement.

Sauna packages that name this heater

These package sources explicitly name the heater; verify current selection and installation requirements.

Other heater options

These are comparison alternatives, not drop-in substitutes.

Verified model-specific facts are kept in Technical Specifications, while current manuals and support files are kept in Manuals & Documents. If an exact source does not resolve a value or relationship, this page leaves it open instead of borrowing from a neighboring model.

Attachments
Legacy manuals for older installations

Use these only when the document revision matches the installed product.

Gallery

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PLAN THE WHOLE SAUNA

The room and heater still have to work as one system.

Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.