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Under bench heating system

Bonatherm

The BONATHERM heater is conveniently hidden under the sauna benches.

Space-saving, childproof and soothing

Also available as SANARIUM with SaunaPUR

Home > Saunas > Bonatherm

Pleasant climate

The KLAFS BONATHERM under bench heating system offers the perfect heat distribution.

Swimming pools
Swimming pools

Child-safe

With the BONATHERM under bench heating system, you eliminate the risk of burns from children's hands. Meanwhile it is still a fully-fledged sauna heater and creates the perfect sauna climate.

Under bench heating system

The BONATHERM heater is conveniently hidden under the sauna benches.

Key Features

BONATHERM sauna heating system for space-saving installation under the benches

VDE-tested

with large-area air outlet, air guide hood and additional air guide plate

Together with the KLAFS sauna control unit 21029, the SaunaPUR® function is possible, while together with the KLAFS sauna control unit 21033, the SANARIUM® function is possible.​​​​​

BONATHERM with 3.3 to 4.5 kW

Connected load 3.3 kW, 230 V for sauna volume 2.0 m³ to 4.5 m³

Connected load 4.5 kW, 230 V/400 V, for sauna volume 4.5 m³ to 7.0 m³

With stone filling of approximately 14 kg original Finnish olivine stones

430 x 720 x 430 mm (H x W x D)

Wall mounting is possible without feet

BONATHERM with 6.0 to 9.0 kW

Connected load 6.0 kW, 230 V/400 V for sauna volume 7.0 m³ to 8.4 m³

Connected load 9.0 kW, 230 V/400 V, for sauna volume 8.5 m³ to 15.0 m³

Large stone basket for a filling quantity of approximately 100 kg original Finnish olivine stones for long heat storage and intensive infusions

780 x 1,200x 570 mm (H x W x D)

Heater weight approximately 150 kg (including olivine sauna stones)

BONATHERM UNDER BENCH HEATING SYSTEM INFUSION FLAP

Swimming pools

COMPACT HEATING SYSTEM FOR SMALL FLOOR PLANS: WALL-MOUNTED BONATHERM

Swimming pools

OUR BONATHERM SYSTEM IS OF COURSE ALSO AVAILABLE AS SANARIUM WITH SAUNAPUR®.

Swimming pools

KLAFS CATALOGUE

… AND THE WORLD CAN WAIT. IMMERSE YOURSELF IN SOME TIME-OUT WITH READING AND RELAXATION. THE KLAFS CATALOGUE HAS 117 PAGES DEDICATED TO THE SAUNA LIFESTYLE. FACTSHEETS ON EVERY SINGLE KLAFS PRODUCT AWAIT YOU BETWEEN INTERESTING STORIES.

Order our catalogue free of charge to your home and start your journey to your own dream sauna with precious time-out from hectic everyday life.

Order catalogue

Order catalogue

Prepare to be enlightened with unforgettable designs

We take inspiration from everywhere, from biomes and botany, crystal and glass, art and crafts, architecture and engineering, markets and bazaars, fabrics and fashion, flora and fauna, mechanisms and machines, food and flavour, colour and spice, dance and theatre, circus and carnival, metals and alchemy, rocks and minerals, shells and coral, space and time, sci-fi and futurology...

Book a design consultancy to see where we can take your ideas and dreams.

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