Wood Chip Boiler

Eco-HK
70–120 kW

The sum of top heating technology solutions.
Energy label: A+
Hot anniversary campaign - save now!

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

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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.

40 Years anniversary campaign: Order now and benefit from hot savings!

Benefits:
Eco-HK 70–120 kW

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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.

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Step grate system
Firebed level control
Turbulators with autom. boiler cleaning system (also in 1st pass)
Ash box 60 l; optional: ash suction system for very long maintenance intervals
Automatic ignition with 300 W
Bicameral rotary valve in Z-form (18 cm depth)
Recirculation
Heat exchanger: no thermal safety circuit necessary
Exhaust fan (EC motor) with negative pressure monitoring
Integrated back-end protection, optional
Eco-RA – energy-saving fuel extraction
Ash extraction system for fly and grate ash
Negative pressure monitoring
Fully refractory-lined combustion chamber
Flame concentration jets made of high-quality refractory
Lambda sensor
Flame temperature monitor
Stainless steel stoker auger and pipe

View 3D model View cross section

Schnittbild des Innenlebens der Hackgutheizung Eco-HK 70–120 kW | Hargassner

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

%

°C

mm

kg

l

m²

mm

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 m²

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 m²

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 m²

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 m²

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 m²

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

A small insight