Biowat biomass boilers

Kociol na biomase Biowat s-6 otwarty

BIOWAT biomass batch boilers without storage tanks, are designed to heat houses up to 320m2.

Capacity of the fuel chamber is wisely chosen. Even in bad conditions (such as -20 °C and wind) there is no need to refuel the boiler at night.

Unlike EKOPAL straw boilers, BIOWAT biomass boilers burn the fuel slowly. Burning speed is regulated manually by manipulating the throttle of primary air.

BIOWAT biomass boilers operate in natural draught without any blowers. Primary air is used to burn fuel partially in the bottom combustion chamber (so-called gasification). The chamber is fully covered in chamot. From this chamber gases flow through the machine named by us “carburetor” up to top ceramic afterburning chamber. In the carburetor gas is mixing with warmed up secondary air. From the afterburning chamber gases flow to box changer chamber. Temperature of afterburns is regulated by repealing “smoking” flap. Smoking flap should be opened widely during the boiler starts or in emergency situation if the water temperature rises above 95 °C.

BIOWAT biomass boilers are installed directly to existing heating system, instead or in-line to coal supplied boiler. Installation must be open type.

We produce following types of BIOWAT biomass boilers:

  • U series – universal wood and/or straw boilers fitting for one typical bale of straw size (40x40x80). It could work by gravity, without pump. Standard fuel is wood. U-300 boiler let you burn one meter long wood. U-360 boiler let you burn “paperwood” – 1,2m long.
  • S series – main fuel is straw but it is possible to burn wood. It is bigger and heavier than U series boilers. One-time load of 4 bales of straw lasts for heating home with 200-230m2 area in hard conditions, without the need of refueling at night.

BIOWAT biomass boilers are loaded with fuel 2-3 times per day. To heat house with the area of 250m2 using our boiler straw supply from 4,5-5 ha field is needed.

The type of straw and wood is indifferent. You can also use sawdust mixed with wooden chips or stacked on straw. After warming up the boiler you can burn even big wood parts. Differently than in EKOPAL biomass boilers, fuel could be loaded during the work.