Boilers with feeder biomass
Sigma Uni is an automatic boiler that is very convenient in use, is equipped with trough burner and is intended for combustion of eco pea coal. The highest quality of materials used for manufacturing of the burner ensure its long-term operation, while suitable design of the heat exchanger ensures optimum fuel combustion conditions, high efficiency and low pollutant emissions. Intuitive and user-friendly controller with colour touch display, with adjustable angle of inclination allows simple programming of the equipment and is responsible for control of system’s operation.
Boiler meets the power-emission requirements of class 5 of the PN EN 303-5:2012.
|5 acc. to the standard 303-5:2012|
|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 mm thickness from steel mills of Arcelor Mittal Poland S.A.|
|controller K1V2 with colour touch panel servicing 4 pumps /central heating, hot utility water, circulation, floor pump/. Servicing of mixing valve. Possibility to control using GSM or INTERNET*****; adjustable angle of position of control panel|
|high thermal efficiency reaching 89% thanks to increased heat recovery from flue gases|
|boiler adapted for installation in closed system*|
|fuel self-ignition system*|
|furnace chamber with highly effective trough burner|
|automatic water extinguishing system with thermostatic valve|
|ceramic catalyst stabilising combustion process|
|Specification / boiler type||Unit||16||20||24||36
|Optimum thermal efficiency||%||~88,8-88,9
|Area of heated
|Capacity of fuel container**||kg||~165||~165||~165||~191
|Max. permissible operation
|Required flue gas draught||Pa
|Water supply temperature
|Boiler weight ****
|Boiler water tank capacity||l||97||100||114||160||196
|Chimney section||cm x cm||14x14||14x14||15x15||17x17
|Chimney section||Ø mm||160||160||178||195
|Minimum chimney height||m||6||7||7,5||9
|Maximum power consumption||W||873/123||873/123||873/123||890/140||890/140|
|Diameter of supply and return Dn||mm
|Height to bottom edge
|Dimensions of substitute combustion
chamber and charging hole
*Maximum area of heated rooms estimated for unit heat demand q=80 W/m2.
****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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