Boilers in closed system
HG boiler used two-stage combustion process - gasification of fuel and subsequent pyrolysis that is combustion of formed gases. Wood fuel is used as a primary fuel. Boiler heat exchanger is made of high quality attested boiler plate with 6-8 mm thickness, in form of two chambers located above each other - connecting function of combustion chamber and ash-pan. Grate is located between the chamber allowing ideal gasification of wood and easy removal of ash. Wood gasification process allows using energy accumulated in fuel and meet the rigorous emission parameters. Combustion process is adjusted using innovative controller with touch display. HG boiler is equipped with exhaust fan that protects it against backflow of smoke to the boiler room. Boiler can be assembled in the closed system.
Reinforced version NZ with installed cooling coil pipe and compete protective fixtures allowing installation in closed system. NZ version requires extra payment, according to the Boilers Equipment Price List.
|5 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler.|
|heat exchanger made of certified boiler steel /grade P265GH/ of 6-8 mm thickness from steel mills of Arcelor Mittal Poland S.A. division and U.S. Steel Kosice s.r.o.|
|modern HG PID controller with touch display and servicing 3 pumps, mixing valve and exhaust valve|
|high thermal efficiency reaching 91% thanks to increased heat recovery from flue gases|
|adapted for installation in closed system|
|Large combustion chamber|
two-stage combustion process - fuel gasification and pyrolysis
installed exhaust fan protects the user against backflow of smoke to the boiler room.
|ceramic catalyst stabilising combustion process|
(*) - extra payable equipment, installed on Customer’s request
|Specification / boiler type||Unit||25||40|
|Area of heated
|m2||to 250||to 400|
|Single fuel charging||dm3||~92,6||~175,3|
|Optimum thermal efficiency||%||~ 90%|
|Max. permissible operation
|bar||2,0 (2,5 CLOSED SYSTEM)
|Required flue gas draught||Pa||20
|Max. water supply temperature||°C||65/85|
|Boiler weight **
|Boiler water tank capacity||l||172||252|
|Chimney section||Ø mm||170||210|
|Minimum height of
|Diameter of supply
and return Dn
|mm||G1 ½”||G1 ½”|
|Dimensions of charging chamber
and fuel charging hole
|width x height||330x284||430x284|
* Maximum area of heated rooms estimated for unit heat demand q=100 W/m2.
** Boiler weight depends on the equipment.
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