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Manual solid fuel boilers

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Versatile cast-iron gasifying boiler Viadrus U22 Economy

Cast-iron gasifying solid fuel boiler with manual fuel loading serving for the ecological combustion of firewood, brown and black coal

Output:

15-21-25-30-34-38-41 kW

Fuel:

Firewood, brown and black coal

Advantages:

. 10 years warranty for the cast-iron heat-exchanger
. efficiency up to 91 %
. meets emission class 5 according to ČSN EN 303-5
. meets the ECODESIGN conditions
. meets demanding conditions of the German emission standard BImSchV Stufe 2 - for fuel wood
. low fuel consumption
. simple manipulation and maintenance
. threaded flanges for simple mounting
. water-tube massive grates
. quick warming of the flue channel
. possibility of operation independent on electric energy (without a forced withdrawal of flue gases and without a circulating pump, excepting systems with a storage tank)
. patented system of the combustion chamber ViaBurn ™

Characteristics

The VIADRUS U22 Economy is a cast-iron gasifying solid fuel boiler with manual fuel loading serving for the ecological combustion of lump wood and coal. The design of the combustion chamber enables fuel combustion by means of natural flue-gases withdrawal without support of a fan, in warm-water systems with natural and forced circulation of heating medium. The Hercules U22 Economy can be beneficially used instead of old solid fuel boilers in old-type "gravitational" heating systems. The boiler reaches emission class 5 according to ČSN EN 303-5 and meets the ECODESIGN conditions.

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