Boilers in closed system
DS boilers use bottom combustion technique, which belong to the most effective and ecological types of fuel combustion in boilers with manual charging. Layer of heat is maintained at the constant level and therefore fuel is combusted in effective and energy efficient way. Moreover, bottom combustion distinguished with lower pollutants emission, better afterburning of fuel, lower temperature of flue gas leaving the boiler and significantly higher efficiency exceeding 86%. Operation process does not require use of electric energy - boilers are operating using natural draught and temperature is mechanically controlled using knob on lifting flap in ash-pan doors or using draught regulator. Moreover, boiler is equipped with a possibility to adjust stream of secondary air. Boilers are equipped with installed cooling coil pipe allowing assembly in the closed system.
|3 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 mm thickness|
|high thermal efficiency reaching 87% thanks to increased heat recovery from flue gases|
|boiler in this standard is adapted for installation in closed system|
|adjustment of secondary air inflow|
|combustion process adjustment using draught regulator or knob in ash-pan doors|
|Large combustion chamber|
|ceramic catalyst stabilising combustion process|
|Specification / boiler type||Unit
|Area of heated rooms*
|Single fuel charging||kg
|Optimum thermal efficiency||%
|Max. permissible work pressure||bar
|Required flue gas draught||Pa
|Max. water supply temperature||°C
|Boiler weight ******
|Boiler water tank capacity||l
|Chimney section||Ø mm
|Minimum chimney height||m
|Diameter of supply and return Dn
|Height to bottom edge of flue||mm
|Dimensions of combustion chamber and fuel charging hole
|Chips size||width x height
* Maximum area of heated rooms estimated for unit heat demand q=100 W/m2.
** Fuel tank capacity for charging density 0.8 kg/dm3
**** Height of boiler can be additionally adjusted by means of provided levelling legs. Legs regulation varies from 38 to 50 mm.
****** Boiler weight depends on the equipment.
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