All-purpose boiler

The JOWISZ is a heating unit with upper flue circulation which contributes to high heat transfer. Its modern functionalities increase its thermal output, so that the entire heated area will reach the required temperature. JOWISZ boilers are the most popular option for houses, utility buildings and commercial spaces.

Very large combustion chamber

JOWISZ is designed to burn wooden logs and hard coal. It also accepts wood logs, up to 550 mm in length. You can charge the very large combustion chamber very easily. Its capacity is as much as 99 dm3 in the largest model of the series. Loading is safe and convenient because fuel is stoked from the front and the swinging flap reduces the amount of smoke released during stoking.

Simple and reliable design

The 3-way heat exchanger increases thermal efficiency: the heat transfer is smooth and optimum temperature is maintained. The reinforced insulation mantle prevents the loss of valuable heat. Ecological central heating largely depends on the selection of appropriate combustion parameters which you can adjust manually by using the throttle located on the ash pan door at the bottom or automatically by means of the draught regulator.

Rugged structure

The JOWISZ boiler is made from proven materials. The thick, certified boiler sheet steel used for the water jacket are heat and pressure resistant, ensuring a long service life. Suitable insulation in the form of a mantle made of layers of steel lined with mineral wool permits higher thermal efficiency, lowering heating costs. The rugged design and the use of modern solutions ensure a long service life and fault-free operation.