Solid fuel boiler with manual loading STALMARK JUHAS 12 kW

Stalmark JUHAS heating boilers – reliability and efficiency

Stalmark JUHAS boilers are designed for water heating systems in private houses, agricultural facilities, repair workshops, and commercial premises. They provide reliable and stable heat supply, operating on hard coal, lignite, and wood.

Construction and materials

The body and heat exchanger are made from high-quality certified boiler steel P265GH with a thickness of 6 mm, ensuring durability and longevity.

Water-filled grates eliminate the need for replacement, providing stable boiler operation for many years.

The combustion chamber cleaning is simplified by the built-in lever mechanism.

Advantages and efficiency

The boiler's efficiency reaches 80%, ensuring economical fuel consumption.

The vertical heat exchanger contributes to efficient heat distribution.

The spacious loading chamber reduces the frequency of refueling, increasing the autonomous operation time.

The boilers are designed for open heating systems, operating with both natural and forced circulation of the heat carrier.

Main model features

Ability to choose the operating mode: upper and lower combustion.

Water-filled grates ensure reliability and longevity.

Enlarged loading chamber increases operational convenience.

Movable grate facilitates the cleaning of grates.

Four-way horizontal heat exchanger contributes to increased efficiency.

Operates without electricity using natural air draft.

Additional options

Thermo-bimetallic draft regulator – automatically adjusts air supply depending on temperature.

RV12 boost fan:

Provides forced air supply for more efficient combustion.

Allows saving up to 30% of fuel.

ST-28 controller – smoothly maintains the set heat carrier temperature, controls the heating system and hot water supply pumps. The package includes temperature sensors.

Optionally available: room thermostat for convenient temperature control in the room.

Additional technical solutions

The boiler is equipped with a draft damper and secondary air regulator, ensuring stable operation.

The possibility of installing the boiler door on the right or left side simplifies installation.

The technology of horizontal flue passages significantly facilitates cleaning, especially in rooms with low ceilings.

Fuel used: hard coal, nut, wood.

Stalmark JUHAS boilers – a modern, economical, and convenient solution for central heating systems, providing high comfort of use and a long service life.