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Polski Producent Kotłów Polski producent
D E F R O *
360 Defro

Econo

Availability: Discontinued
Boiler type: Hopper-fed boiler.
Available powers: 8, 12, 18, 25, 30, 35 kW
Controller: None
Optional equipment - for an additional fee: Draft regulator, DEFRO OPTI air set, leveling feet.
Polski Producent Kotłów Produkt polski, wyprodukowany na terenie Unii Europejskiej.

3 years of warranty for the heat exchanger's tightness, 2 years for other components, and the proper operation of the boiler.

Heat exchanger made of certified, high-grade boiler steel.

High thermal efficiency reaching 85% thanks to increased heat recovery from exhaust gases.

Regulation of the combustion process can be done using a draft regulator* or a knob on the ashpan door.

Secondary air intake regulation.

Factory-ready for the installation of a combustion air set.

Water grate.

Door closing force adjustment.

Designed to work in conjunction with a draft regulator. 4

ECONO traditional coal boilers are designed for traditional coal and wood burning using natural chimney draft. They are intended for heating residential and industrial spaces ranging from 30 to 350 square meters and for producing domestic hot water. The boiler’s heat exchanger is made of certified sheet metal with a thickness of 5 mm. The regulation of the amount of air required for an effective combustion process is done using an adjustment screw on the ashpan door. The boiler also has the option to install a draft regulator, allowing for automatic control of air intake.

4 This option is available at an additional cost and is installed upon the customer’s request.
Boiler name Econo
Boiler specification/type IU 8 12 18 25 30 35
Power range kW 2,4-8 3,6-12 5,4-18 7,5-25 9,0-30 10,5-35
Heating surface m2 1,0 1,3 1,8 2,5 3,1 3,4
Area of ​​heated rooms 1 m2 Up to 80 Up to 120 Up to 180 Up to 250 Up to 300 Up to 350
Single fuel load. kg ~11 ~14 ~22 ~46 ~51 ~59
Optimum thermal efficiency % ~83,1-85,4
Energy efficiency class – D D D D D D
Max. permissible pressure

working

 bar 1,5
Required exhaust gas draft Pa 18 22 25 28 30 31
Supply water temperature max. °C 65/90
Boiler weight 2. kg 125 140 190 240 315 340
Boiler water capacity l 34 41 57 77 97 105
Cross-section of the chimney cmxcm 14×14 14×14 14×14 16×16 17×17 18×18
Cross-section of the chimney O mm 160 160 160 180 190 200
Minimum height of the chimney m 5,5 6 7 8 8 8
Width 3. mm 601 601 651 701 701 751
Depth mm 660 710 785 885 1030 1030
Height mm 1024 1034 1134 1234 1234 1234
Supply and return diameter Dn mm G1 1”
Flue diameter mm 127 127 159 159 178 178
Height to the lower edge of the firebox door. mm 766 791 854 950 943 943
Hopper chamber dimensions.

as well as the loading opening dimensions.

 width

depth

height

width x height

 260

240

220

260 x 170

 260

290

220

260 x 190

 310

340

270

310 x 190

 360

440

365

360 x 190

 360

590

305

360 x 240

 410

590

305

410 x 240

 

1 Maximum heated area estimated for individual
heat demand of q=100 W/m².
2 The boiler’s weight depends on the equipment.
3 The boiler width is provided with a draft regulator. The draft regulator is not included as part of the boiler’s equipment.
4 The regulation of the air intake is an optional feature available at an additional cost, installed upon the customer’s request.

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