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360 Defro

Delta

Availability: Discontinued
Boiler type: Hopper-fed boiler.
Available powers: 8, 12, 16, 19, 22, 25, 28, 35, 42, 49 kW
Optional equipment - for an additional fee: Leveling feet, NZ version for closed system, draft regulator, DEFRO OPTI air set.

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

Heat exchanger made from certified, high-quality 6mm steel.

High thermal efficiency reaching 83% thanks to increased heat recovery from exhaust gases.

NZ version designed for closed system installation, reinforced construction, built-in cooling coil.

Mechanical movable grate for ash removal from water grates.

Large combustion chamber.

Secondary air flow regulation.

Mechanical regulation of the combustion process using a knob on the ashpan door.

Factory-ready for the installation of an air set.

Water grate.

Door closing force adjustment.

Designed to work in conjunction with a draft regulator.

Delta boilers are designed for burning both anthracite coal and firewood. The combustion process is mechanically controlled using a knob for the damper in the ashpan door. Additionally, there is an adjustable baffle in the loading door to regulate the secondary air intake. This solution significantly improves the combustion process and exhaust emission parameters. It is also possible to adjust the combustion process using a draft regulator. Furthermore, the boilers are factory-ready for the installation of a fan and electronic controller. The boilers have the advantage of a spacious combustion chamber that ensures extended operation of the device, as well as large loading doors that facilitate fuel loading.

 

3Optional, available at an additional cost, installed upon the customer’s request.
4The grate’s movable foot is not available in the 8 kW model.
5The draft regulator is not included as part of the boiler’s equipment.

Boiler name Delta – Table No. 1 – power range 8 – 22 kW.
Boiler specification/type IU 8 12 16 19 22
Power range kW 2,4

-8

 3,6

– 12

 4,8

-16

 5,7

-19

 6,6

-22
Heating surface m2 1,2 1,4 1,8 2,0 2,2
Area of ​​heated rooms 1 m2 Up to 110 Up to 140 Up to 180 Up to 200 Up to 230
Single fuel load. kg ~13 ~18 ~23 ~23 ~28
Optimum thermal efficiency % 80,7-82 %
Energy efficiency class – D D C C D
Max. permissible pressure

working

 bar Open system 1.5 / Closed system 2.5.
Required exhaust gas draft Pa 18 21 24 26 27
Water temperature.

At supply max.

 °C 65/90
Boiler weight 2. kg 231 258 289 302 325
Boiler water capacity l 49 55 70 74 82
Cross-section of the chimney cmxcm 14×14 14×14 14×14 14×14 15×15
Cross-section of the chimney O mm 160 160 160 160 165
Minimum height.

Chimney

 m 5 5 6 6,5 7
Width mm 646 646 646 646 696
Depth mm 990 1082 1094 1094 1094
Height mm 975 975 1075 1125 1125
Supply diameter.

and return Dn

 mm G1 1”
Flue diameter mm 159 159 159 159 159
Height to the lower.

edge of the flue

 mm 573 573 673 723 723
Hopper chamber dimensions.

as well as the loading opening dimensions.

 width

depth

height

width x height

 258

270

240

258×208

 258

365

240

258×208

 258

404

280

258×238

 258

404

280

258×288

 308

404

280

308×288

1Maximum heated area estimated for individual heat demand of q=95 W/m².
2The weight of the boiler depends on the equipment.
3Optional, available at an additional cost, installed upon the customer’s request.
4The grate’s movable foot is not available in the 8 kW model.
5The draft regulator is not included as part of the boiler’s equipment.

 

 

Boiler name Delta – Table No. 2 – power range 25 – 49 kW.
Boiler specification/type IU 25 28 35 42 49
Power range kW 7,5

-25

 8,4-

28

 10,5

-35

 12,6

-42

 14,7

-49
Heating surface m2 2,4 2,7 3,2 4,2 4,9
Area of ​​heated rooms 1 m2 Up to 250 Up to 280 Up to 350 Up to 440 Up to 500
Single fuel load. kg ~32 ~37 ~51 ~56 ~61
Optimum thermal efficiency % 80,7-82 %
Energy efficiency class – D D D D D
Max. permissible pressure

working

 bar Open system 1.5 / Closed system 2.5.
Required exhaust gas draft Pa 28 29 31 32 34
Water temperature.

At supply max.

 °C 65/90
Boiler weight 2. kg 354 382 429 489 555
Boiler water capacity l 90 98 114 136 158
Cross-section of the chimney cmxcm 16×16 16×16 18×18 20×20 21×21
Cross-section of the chimney O mm 175 185 200 220 235
Minimum height.

Chimney

 m 7 7,5 8 8 8,5
Width mm 746 796 846 846 846
Depth mm 1094 1094 1114 1262 1410
Height mm 1125 1125 1175 1178 1180
Supply diameter.

and return Dn

 mm G1 1”
Flue diameter mm 159 178 178 178 178
Height to the lower.

edge of the flue

 mm 723 714 765 768 768
Hopper chamber dimensions.

as well as the loading opening dimensions.

 width

depth

height

width x height

 358

404

280

358×288

 408

404

280

408×288

 458

424

330

458×288

 458

464

330

458×288

 458

504

330

458×288

1Maximum heated area estimated for individual heat demand of q=95 W/m².
2The weight of the boiler depends on the equipment.
3Optional, available at an additional cost, installed upon the customer’s request.
4The grate’s movable foot is not available in the 8 kW model.
5The draft regulator is not included as part of the boiler’s equipment.

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Export Manager Phone: +48 512 013 834
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Export Manager Phone: +48 669 668 599
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Export Manager Phone: +48 783 783 218
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Export Manager Phone: +48 512 013 834