Helo

Helo Hanko STJ Electric Sauna Heater

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€562,95

Colour: Chrome

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Description

The Hanko STJ is a compact wall-mounted electric sauna heater, designed and handcrafted at Helo’s factory in the port town of Hanko on Finland’s southern coast. Despite its small footprint it holds a remarkable 32 kg of stones, which gives its steam an unusually soft, gentle character for a heater of this size. It is available in 6 kW and 8 kW outputs for sauna rooms of 5–12 m³, each suitable for single-phase or three-phase connection, and the STJ model carries an integrated thermostat with upper limit reset and a 3 + 9 hour timer. Choose between black and chrome finishes; sauna stones are sold separately.

Features

Compact footprint: A small wall-mounted body suits tight sauna layouts and keeps the floor clear.
Large stone capacity: Holds a remarkable 32 kg of stones for a notably soft, gentle steam.
Integrated controls: Thermostat with upper limit reset and a 3 + 9 hour timer are built in.
Flexible power supply: The 6 kW and 8 kW outputs connect to single-phase or three-phase supplies.
Two finishes: Available in black or chrome to suit the sauna interior.
Finnish craftsmanship: Handcrafted from high-quality materials at Helo’s Hanko factory.
Light to install: The heater body weighs from 7.2 kg and mounts straight to the sauna wall.

Technical Specification

All models
Dimensions (H × W × D)	575 × 365 × 250 mm
Stone capacity	32 kg
Minimum sauna room height	1,900 mm
Controls	Integrated thermostat with upper limit reset; 3 + 9 hour timer
Installation	Wall-mounted
Finishes	Black or chrome
Clearance to the ceiling	1,300 mm
Hanko 60 STJ (6 kW)
Recommended sauna room volume	5–9 m³
Weight without stones	7.2 kg
Clearance to the side walls	70 mm
Clearance to the front	100 mm
Clearance to the back wall	85 mm
Cable and fuses, 400–415 V 3N~	5 × 1.5 mm²; 3 × 10 A
Cable and fuses, 230 V 3~	4 × 2.5 mm²; 3 × 16 A
Cable and fuse, 230–240 V 1N~	3 × 10 mm²; 1 × 35 A
Hanko 80 STJ (8 kW)
Recommended sauna room volume	8–12 m³
Weight without stones	7.7 kg
Clearance to the side walls	100 mm
Clearance to the front	150 mm
Clearance to the back wall	115 mm
Cable and fuses, 400–415 V 3N~	5 × 2.5 mm²; 3 × 16 A
Cable and fuses, 230 V 3~	4 × 6 mm²; 3 × 25 A
Cable and fuse, 230–240 V 1N~	3 × 10 mm²; 1 × 35 A

Installation

Installation and maintenance must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Under IEC 60364-7-703 and BS 7671:2018 an electric sauna heater does not have to be connected through an RCD, and for reliable operation Helo recommends that the heater supply is not run through one; other electrical devices in the sauna room should be RCD protected. A local point of isolation covering all live conductors is recommended. The connection cable is heat-resistant H07RN-F (60245 IEC 66), and the installation manual in the Downloads tab and local wiring regulations must be followed. The heater hangs on a wall bracket fixed with 6 × 40 mm mounting screws; thin panelling must be reinforced behind the fixing points, and the safety clearances apply even where walls are non-combustible.

Sauna stones

Sauna stones are purchased separately; this heater takes 32 kg. Fill the stone space as directed in the installation manual.

Brand

Helo was founded in 1919 and was the first manufacturer of electric sauna heaters. Its heaters are still handcrafted in Hanko, Finland, and the company is part of the Sauna360 group.

Warranty

The warranty card is available in the Downloads tab.

Downloads

Hanko STJ Sauna Heater by Helo - Installation Manual & User Guide Hanko STJ Sauna Heater by Helo - Declaration of Conformity Hanko STJ Sauna Heater by Helo - Warranty Card

Delivery & Returns

Delivery

We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.

Returns

We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.

Warranty & Quality Promise

We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.

Description

Technical Specification

Downloads

Delivery & Returns

Description

The Hanko STJ is a compact wall-mounted electric sauna heater, designed and handcrafted at Helo’s factory in the port town of Hanko on Finland’s southern coast. Despite its small footprint it holds a remarkable 32 kg of stones, which gives its steam an unusually soft, gentle character for a heater of this size. It is available in 6 kW and 8 kW outputs for sauna rooms of 5–12 m³, each suitable for single-phase or three-phase connection, and the STJ model carries an integrated thermostat with upper limit reset and a 3 + 9 hour timer. Choose between black and chrome finishes; sauna stones are sold separately.

Features

Compact footprint: A small wall-mounted body suits tight sauna layouts and keeps the floor clear.
Large stone capacity: Holds a remarkable 32 kg of stones for a notably soft, gentle steam.
Integrated controls: Thermostat with upper limit reset and a 3 + 9 hour timer are built in.
Flexible power supply: The 6 kW and 8 kW outputs connect to single-phase or three-phase supplies.
Two finishes: Available in black or chrome to suit the sauna interior.
Finnish craftsmanship: Handcrafted from high-quality materials at Helo’s Hanko factory.
Light to install: The heater body weighs from 7.2 kg and mounts straight to the sauna wall.

All models
Dimensions (H × W × D)	575 × 365 × 250 mm
Stone capacity	32 kg
Minimum sauna room height	1,900 mm
Controls	Integrated thermostat with upper limit reset; 3 + 9 hour timer
Installation	Wall-mounted
Finishes	Black or chrome
Clearance to the ceiling	1,300 mm
Hanko 60 STJ (6 kW)
Recommended sauna room volume	5–9 m³
Weight without stones	7.2 kg
Clearance to the side walls	70 mm
Clearance to the front	100 mm
Clearance to the back wall	85 mm
Cable and fuses, 400–415 V 3N~	5 × 1.5 mm²; 3 × 10 A
Cable and fuses, 230 V 3~	4 × 2.5 mm²; 3 × 16 A
Cable and fuse, 230–240 V 1N~	3 × 10 mm²; 1 × 35 A
Hanko 80 STJ (8 kW)
Recommended sauna room volume	8–12 m³
Weight without stones	7.7 kg
Clearance to the side walls	100 mm
Clearance to the front	150 mm
Clearance to the back wall	115 mm
Cable and fuses, 400–415 V 3N~	5 × 2.5 mm²; 3 × 16 A
Cable and fuses, 230 V 3~	4 × 6 mm²; 3 × 25 A
Cable and fuse, 230–240 V 1N~	3 × 10 mm²; 1 × 35 A

Installation

Installation and maintenance must be carried out by a certified electrician, with the electricity supply isolated at the fuse panel before any work begins. Under IEC 60364-7-703 and BS 7671:2018 an electric sauna heater does not have to be connected through an RCD, and for reliable operation Helo recommends that the heater supply is not run through one; other electrical devices in the sauna room should be RCD protected. A local point of isolation covering all live conductors is recommended. The connection cable is heat-resistant H07RN-F (60245 IEC 66), and the installation manual in the Downloads tab and local wiring regulations must be followed. The heater hangs on a wall bracket fixed with 6 × 40 mm mounting screws; thin panelling must be reinforced behind the fixing points, and the safety clearances apply even where walls are non-combustible.

Sauna stones

Sauna stones are purchased separately; this heater takes 32 kg. Fill the stone space as directed in the installation manual.

Brand

Helo was founded in 1919 and was the first manufacturer of electric sauna heaters. Its heaters are still handcrafted in Hanko, Finland, and the company is part of the Sauna360 group.