Charging Boilers

Optima Komfort

OPTIMA KOMFORT boilers are equipped with horizontal-skew flue gas channels and are adapted for upper combustion of solid fuels. 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 controllers /additional equipment/. Boilers are factory adapted for installation of fan and electronic controller what significantly increases comfort. Large furnace chamber and arrangement of cleaning holes are only some of solutions ensuring high comfort.

 4 lata gwarancji na szczelność wymiennika ciepła, 2 lata na pozostałe elementy i sprawne działanie kotła
4 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler
 wymiennik ciepła wykonany z atestowanej stali kotłowej /gat. P265GH/ o grubości 6mm heat exchanger made of certified boiler steel /grade P265GH/ of 6 mm thickness
wysoka sprawność cieplna sięgająca 85% dzięki zwiększonemu odzyskowi ciepła ze spalin high thermal efficiency reaching 85% thanks to increase heat recovery from flue gases
 fabrycznie przystosowany do montażu zestawu nadmuchowego factory adapted for installation of blowing set
duża komora paleniskowa large furnace chamber
mechaniczny ruszt ruchomy do odpopielania rusztowin wodnych /nie dotyczy typu 10 i 13kW mechanical movable grate for removal of ash from water grates;
regulacja procesu spalania przy pomocy miarkownika ciągu* lub pokrętła w drzwiach popielnikowych combustion process adjustment using draught regulator* or knob in ash-pan doors
powietrze-wtorne.png adjustment of secondary air inflow;

(*) - extra payable equipment, installed on Customer’s request

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

Specification / boiler type Unit 8 10 12 15 20 25 30 35
Power range kW 2,4-8 3,0-10 3,6-12 4,5-15 6,0-20 7,5-25 9,0-30 10,5-35
Heating area m2 1,2 1,5
1,6
2,0
2,6
2,9
3,6 3,9
Area of heated
rooms*
m2 to 110
to 140 to 150 to 200 to 260 to 290 to 350 to 390
Single fuel charging  kg ~18  ~21  ~21  ~30  ~41 ~51  ~66  ~74
Optimum thermal efficiency  %  ~85,0-85,8       
Max. permissible operation
pressure
 bar 1,5
Required flue gas draught  Pa 18
20
 22  23 26
28
30
31
Max. water supply temperature  °C 65/90
Boiler weight **
 kg 194 242 250 284 312 347 403 467
Boiler water tank capacity  l 36 50 53 60 72 82 87 111
Chimney section  cmxcm 14x14  14x14  14x14  14x14 14x14 16x16 17x17  18x18
Chimney section  Ø mm 160 160 160 160 160 180 190 200
Minimum height of
chimney
 m 5,5
5,5 6 6 7 7 8 8
Width  mm 550  550 550
600
600
650
750
750
Depth  mm 890 1045 1045 1045
1115 1145 1145 1215
Height  mm  1407  1530  1530  1570  1620  1625  1655  1640
Diameter of supply
and return Dn
 mm G1½
Flue size  mm  127  178  178 178 178  178 178 178
Height to bottom
edge of flue
 mm  1080  1165  1165  1210  1260  1265 1265  1275
Dimensions of charging chamber
and fuel charging hole
width  258 258 258  308 308  358  458  458
  depth  253  368  368 368 438  468  468  537
  height  250  264  264 315 354 354 354 354
Chips size width x height  258 x 188  258 x 188  258 x 188  308 x 238  308 x 238  358 x 238 358 x 238 358 x 238

 

* Maximum area of heated rooms estimated for unit heat demand q=80 W/m2.

* Boiler weight depends on the equipment.

DEFRO company reserves the right to introduce without any notice changes in technical parameters, equipment and specification of offered products. Information included on this page are not assurance within the meaning of art. 4 par 3 and 4 of the Act of 27 July 2002 on special conditions of consumer sales and change of Civil Code (hereinafter “Act”) and are not description of the product within the meaning of art. 4 par. 2 of the Act. This page is not an offer within the meaning of the art. 66 of the Civil Code.

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