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Polski Producent KotłówPolish manufacturer
D E F R O *
360 Defro

Optima HG

5th grade: 19, 25, 32 kW
Energy efficiency class: A+
Fuel: firewood - humidity ≤ 20%
Optional equipment - for an additional fee: OPTIMA HG controller, leveling feet, mechanical exchanger cleaning system, boiler maintenance tools
Polish product, manufactured within the European Union. Polish product, manufactured within the European Union.

3-year warranty for the tightness of the heat exchanger, 2 years for other components and efficient operation of the boiler.

Heat exchanger made of certified high-quality boiler steel;

High thermal efficiency above 92% thanks to increased heat recovery from exhaust gases;

OPTIMA HG controller with support for a buffer, 3 pumps, a mixing valve and an exhaust fan;

The boiler is designed for installation in a closed system;

Two-stage combustion technique - fuel gasification and pyrolysis

Ceramic catalysts stabilizing the combustion process;

Exhaust fan eliminating the problem of chimney draft and stabilizing the operation of the boiler;

Mechanical heat exchanger cleaning system;

The HG boiler uses a two-stage combustion technique – gasification of the fuel and subsequent pyrolysis, i.e. combustion of the resulting gases. The basic fuel is firewood. The boiler exchanger is made of high-quality, certified boiler sheet metal with a thickness of 6-8 mm in the form of two chambers placed above each other – the upper one, which serves as a fuel tank, and the lower one – combining the functions of the combustion chamber and ash pan. There is a grate between the chambers, which allows for perfect gasification of wood and easy removal of ash. The wood gasification process allows full use of the energy stored in the fuel and meets restrictive emission parameters. The combustion process is regulated by an innovative controller with a touch display. The HG boiler has a built-in exhaust fan that prevents smoke from returning to the boiler room. The boiler can be installed in a closed system.

 

 

Boiler specification/type
 J.m. 19 25 32
Fuel

hardwood log – birch Ø12 cm

 hardwood log – birch Ø12 cm hardwood log – birch Ø12 cm 
Min. safe capacity of the accumulation tank
 l 700 1200 1400 
Heating surface
 m2 1,6 2,0 2,4 
Area of ​​heated rooms
 m2 do 150 do
190		 do 250 
One-time fuel filling
 kg ~14 ~24 ~27 
Thermal efficiency for nominal power
 % 92,3 92,2 92,4 
Energy efficiency class
 A+ A+ A+ 
Max. permissible working pressure
 bar 3 3 3 
Required exhaust gas draft


















Pa
17
17
18






Supply water temperature min/max.


°C
70/90
70/90
70/90






Boiler weight


kg
~430
~510
~540






Boiler water capacity


l
95
110
120






Diameter of the supply/return connection


cal
1 ½ ’’
1 ½ ’’
1 ½ ’’






Flue diameter


mm
130
130
130






Power supply


V/N/Hz/A
230/1/50/3,15
230/1/50/3,15
230/1/50/3,15






Maximum power consumption


W
35
35
35






Dimensions of the filling hole


mm
380×400
380×400
380×450






Height


mm
1460
1460
1560






Width


mm
620
620
620






Depth


mm
995
1155
1155








1 The maximum area of ​​heated rooms was estimated for the specific heat demand q = 70 W/m2. 2Fuel tank capacity for bulk density of eco-pea coal of 0.8 kg/dm3.


3 The weight of the boiler depends on its additional equipment.


The height of the boiler can be additionally adjusted using the included feet.


The feet have an adjustment range from 38 to 50 mm.


ATTENTION! When ordering the KOMFORT EKO LUX boiler, please specify which side the tank should be on (left or right).



			

															

				


OPTIMA HG




FUNCTIONS PERFORMED BY THE CONTROLLER


    

  • exhaust fan control
    • 

  • mixing valve actuator control
    • 

  • buffer pump control
    • 

  • DHW pump control
    • 

  • additional pump control
    • 

  • possibility of connecting a room regulator with RS or traditional communication
    • 

  • possibility of connecting the ST-65 GSM module
    • 

  • possibility of connecting the ST-505 ETHERNET module
    • 

  • possibility of controlling two valves using additional modules
    • 


			

						

				

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