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Wood Chip Boiler

Eco-HK
70–120 kW

The sum of top heating technology solutions.
Energy label: A+

  • Newest combustion technology
  • Unique step grate system
  • Automatic fuel quality detection
  • Cost-reducing with eco mode
  • Rotary valve in Z-Form

State-of-the-art wood chip heating technology

Heating boiler for the medium and large output range

The heating system for the medium and larger output range from Hargassner is particularly suitable for use by farmers, in apartment buildings, public buildings, hotels and catering industry.

  • Unique step grate system
  • Highest efficiency
  • Firebed monitoring with contactless sensors
  • Lambda sensor with fuel quality detection
  • Heat exchanger cleaning system (in 1st + 2nd pass)
  • Energy-saving ignition: 300 W
  • Z-form double rotary valve - 100% burn-back safety
  • Induced draught (EC motor) with vacuum monitoring
  • 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
  • Mobile control - smart home app
  • 5 year warranty acc. warranty card
  • Energy efficiency class A+
  • Integrated return lift (optional)
  • Fully automatic ash extraction system (optional)

Our boilers in detail

Specifics
of Eco-HK 70–120 kW

TOP SOLUTION IN REALITY AND IN 3D!

Discover state-of-the-art heating technology with the Eco-HK 70–120 kW wood chip boiler, which you can rotate, tilt or zoom in any direction.

This cost-cutting heating system can also be discovered in 3D, right now and in your boiler room; with the help of augmented reality, you can look into the future of your wood chip heating system. Simply click on the AR button and use your fingers to position, rotate and scale this top boiler on your mobile phone or tablet. You will already have an idea of how the Eco-HK 70–120 kW will look in your room.

You can get all the technical details and important components of this woodchip heating system in the sectional image below.

Open 3D model in a new window
  1. Step grate system
  2. Firebed level control
  3. Turbulators with autom. boiler cleaning system (also in 1st pass)
  4. Ash box 60 l; optional: ash suction system for very long maintenance intervals
  5. Automatic ignition with 300 W
  6. Bicameral rotary valve in Z-form (18 cm depth)
  7. Recirculation
  8. Heat exchanger: no thermal safety circuit necessary
  9. Exhaust fan (EC motor) with negative pressure monitoring
  10. Integrated back-end protection, optional
  11. Eco-RA – energy-saving fuel extraction
  12. Ash extraction system for fly and grate ash
  13. Negative pressure monitoring
  14. Fully refractory-lined combustion chamber
  15. Flame concentration jets made of high-quality refractory
  16. Lambda sensor
  17. Flame temperature monitor
  18. Stainless steel stoker auger and pipe
View 3D model View cross section

Technical
details

Nominal capacity (NC)
Fuel heat output
Minimum capacity
Electric capacity
NCV efficiency at nominal output
NCV efficiency at 30 % nominal output
GCV efficiency at nominal output
GCV at 30 % nominal output
Seasonal energy efficiency ETAs
Boiler temperature range
Measures (w x h x d)
Weight
Filling volume
Space requirement
Flue pipe diameter
Ash box volume
Water content
Flow/Return
Energy label
Unit
kW
kW
kW
kW
%
%
%
%
%
°C
mm
kg
l
mm
l
l
"
    Eco-HK 70
    Nominal capacity (NC) 70 kW
    Fuel heat output 73,2 kW
    Minimum capacity 21 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95,6* %
    NCV efficiency at 30 % nominal output (np) 95,2 %
    GCV efficiency at nominal output 87,5 %
    GCV efficiency at 30 % nominal output 87,1 %
    Seasonal energy efficiency ETAs 83** / 83** %
    Boiler temperature range 69 - 78 °C
    Measures (w x h x d) 745 x 1610 x 1560 mm
    Weight 1100 kg
    Filling volume - l
    Space requirement 1,15
    Flue pipe diameter 180 mm
    Ash box volume 60 l
    Water content 180 l
    Flow/Return 6/4 "
    Boiler label A+
    Eco-HK 90
    Nominal capacity (NC) 90 kW
    Fuel heat output 94,4 kW
    Minimum capacity 27 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95,3* %
    NCV efficiency at 30 % nominal output (np) 95,6 %
    GCV efficiency at nominal output 87,3 %
    GCV efficiency at 30 % nominal output 87,5 %
    Seasonal energy efficiency ETAs 84** / 83** %
    Boiler temperature range 69 - 78 °C
    Measures (w x h x d) 745 x 1610 x 1560 mm
    Weight 1100 kg
    Filling volume - l
    Space requirement 1,15
    Flue pipe diameter 180 mm
    Ash box volume 60 l
    Water content 180 l
    Flow/Return 6/4 "
    Boiler label -
    Eco-HK 100
    Nominal capacity (NC) 99 kW
    Fuel heat output 104 kW
    Minimum capacity 29,7 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95,2* %
    NCV efficiency at 30 % nominal output (np) 95,8 %
    GCV efficiency at nominal output 87,2 %
    GCV efficiency at 30 % nominal output 87,7 %
    Seasonal energy efficiency ETAs 84** / 83** %
    Boiler temperature range 69 - 78 °C
    Measures (w x h x d) 745 x 1610 x 1560 mm
    Weight 1150 kg
    Filling volume - l
    Space requirement 1,15
    Flue pipe diameter 180 mm
    Ash box volume 60 l
    Water content 180 l
    Flow/Return 6/4 "
    Boiler label -
    Eco-HK 110
    Nominal capacity (NC) 110 kW
    Fuel heat output 115,8 kW
    Minimum capacity 33 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95* %
    NCV efficiency at 30 % nominal output (np) 96 %
    GCV efficiency at nominal output 87,1 %
    GCV efficiency at 30 % nominal output 87,9 %
    Seasonal energy efficiency ETAs 84** / 83** %
    Boiler temperature range 69 - 78 °C
    Measures (w x h x d) 745 x 1610 x 1560 mm
    Weight 1150 kg
    Filling volume - l
    Space requirement 1,15
    Flue pipe diameter 180 mm
    Ash box volume 60 l
    Water content 180 l
    Flow/Return 6/4 "
    Boiler label -
    Eco-HK 120
    Nominal capacity (NC) 120 kW
    Fuel heat output 126,6 kW
    Minimum capacity 36 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 94,8* %
    NCV efficiency at 30 % nominal output (np) 96,2 %
    GCV efficiency at nominal output 87 %
    GCV efficiency at 30 % nominal output 88,1 %
    Seasonal energy efficiency ETAs 84** / 84** %
    Boiler temperature range 69 - 78 °C
    Measures (w x h x d) 745 x 1610 x 1560 mm
    Weight 1150 kg
    Filling volume - l
    Space requirement 1,15
    Flue pipe diameter 180 mm
    Ash box volume 60 l
    Water content 180 l
    Flow/Return 6/4 "
    Boiler label -

    NCV = Net Calorific Value | GCV = Gross Calorific Value
    max. operation temperature 95 °C | max. operating pressure 3 bar | required back-end protection 58 °C | electrical supply 400 V AC, 50 Hz, 13 A fuse protection
    *according to type test with test fuel
    **without eCleaner / with eCleaner