Wood Chip Boiler

Eco-HK
250–330 kW

A powerfull class of its own

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Modern combustion technology
Unique step grate system
Automatic fuel quality detection
Energy-efficient eco mode
In Cascade up to 4 MW

Benefits Details Technical details Supplies Target group References Your proposal Dealer information News

State-of-the-art wood chip heating technology

Heating boiler for the large power range

The Eco-HK 250–330 kW wood chip boiler is designed for large output applications. The boiler is ideally suited for use in commercial/industrial operations, apartment buildings, public buildings, industrial and local heating networks and many other areas.
Its sophisticated and proven heating technology enables efficient fuel utilisation and fully automatic operation.

Benefits:
Eco-HK 250–330 kW

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Unique step grate system 3 revolving grates and 1 fixed grate
Boiler efficiency (NCV) up to 94.1 %
Firebed monitoring with contactless sensors
Lambda sensor with fuel quality detection
Heat exchanger cleaning system (in 1st + 2nd pass)
Automatic ignition: 2 x 300 W
Burn-back protection through a Z-shaped dual-chamber rotary valve
Induced draught (EC motor) with vacuum monitoring
Recirculation integrated as standard
Combustion chamber sensor & tertiary air actuator - combustion optimisation
Ash discharge for fly ash & grate ash
No thermal safety circuit necessary
Left & right boiler version (return lift always on the insertion side)
Modern touch display control TouchPro
Mobile control - smart home app
5 year warranty acc. warranty card
No loss of performance during ash removal
Integrated return temperature control (optional)
Fully automatic ash extraction system (optional)
Cascade controller up to 12 boilers - 4 MW

Our boilers in detail

Specifics
of Eco-HK 250–330 kW

LARGE-SCALE PERFORMANCE IN 3D!

Here you can discover powerful performance for trade and industry. Simply rotate, tilt or zoom the Eco-HK 250–330 kW boiler in all directions as desired.

For professional decisions, use the 3D visualisation to discover modern wood chip technology right now and in your boiler room. Use augmented reality to visualise the future heating system by placing, rotating or scaling the boiler on your mobile phone or tablet using the AR button. You will receive a scale-correct representation of how the Eco-HK 250–330 kW integrates into your project planning.

All technical details and important components are included in the following sectional view.

Open 3D model in a new window

“Step grate” system
a) De-ashing grate
b) Breaker grate
c) Stoker grate
d) Fixed grate
Firebed level control
Turbulators with autom. boiler cleaning system (also in 1st flue)
Ash box 75 l
Automatic ignition with 300 W x2
Bicameral Z-shaped rotary valve (22 cm depth)
Recirculation integrated as standard
Ash extraction system for fly and grate ash
Fully refractory-lined combustion chamber
Flame shaping nozzle made of fireclay
Grate temperature monitoring
Stainless steel stoker auger and pipe
Multicyclone with optional eCleaner

View 3D model View cross section

Cross-section of the Eco-HK 230-330 kW wood chip heating system | Hargassner

Technical
details

Eco-HK 250

249

264,6

74,7

-

94,1*

96,8

83,3

86

82** / 82**

69 – 95

1155 x 2015 x 2285

2500

-

2,62

250

75

570

2,5

-

Eco-HK 300

299

318,8

89,7

-

93,8*

96,5

83,3

86,4

83** / 83**

69 – 95

1155 x 2015 x 2285

2500

-

2,62

250

75

570

2,5

-

Eco-HK 330

330

352,6

99

-

93,6*

96,4

83,4

86,7

83** / 83**

69 – 95

1155 x 2015 x 2285

2500

-

2,62

250

75

570

2,5

-

NCV = Net Calorific Value | GCV = Gross Calorific Value
max. operation temperature 95°C, max. operating pressure 4 bar, boiler temperature range 69 – 95, obligatory back-end protection with mixing valve, electrical supply 400V AC, 50 Hz, 13 A

The nominal output of these boilers is achieved with the fuel according to standard EN ISO 17225-4, class A1-B1 (P16 S-P31 S, M20) for wood chips and according to standard EN ISO 17225-2 class A1 for pellets. If these fuel specifications or the stated water content levels are not complied with, the respective nominal heat outputs may not be reached. Providing the above fuel-quality requirements are adhered to, the 24 hr constant heat output is approx. 92% of the nominal heat output (e.g. NO of 220 kW x 92% x 24 hrs = 4752 kWh).

*according to type test with test fuel
**without eCleaner / with eCleaner

A small insight