Wood Chip Boiler

Eco-HK
70–120 kW

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

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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

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 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.

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 up to 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

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Technical
details

Eco-HK 70

70

73,2

21

-

95,6*

95,2

87,5

87,1

83** / 83**

69 – 90 (opt. 95 °C)

875 x 1610 x 1560

1100

-

1,15

180

60

180

6/4

A++

Eco-HK 90

90

94,4

27

-

95,3*

95,6

87,3

87,5

84** / 83**

69 – 90 (opt. 95 °C)

875 x 1610 x 1560

1100

-

1,15

180

60

180

6/4

-

Eco-HK 100

99

105,5

29,7

-

95,2*

95,8

87,2

87,7

84** / 83**

69 – 90 (opt. 95 °C)

875 x 1610 x 1560

1150

-

1,15

180

60

180

6/4

-

Eco-HK 110

108

115,4

32,4

-

95*

96

87,1

87,9

84** / 83**

69 – 90 (opt. 95 °C)

875 x 1610 x 1560

1150

-

1,15

180

60

180

6/4

-

Eco-HK 120

120

126,6

36

-

94,8*

96,2

87

88,1

84** / 84**

69 – 90 (opt. 95 °C)

875 x 1610 x 1560

1150

-

1,15

180

60

180

6/4

-

NCV = Net Calorific Value | GCV = Gross Calorific Value
max. operation temperature 90°C (opt. 95 °C), max. operating pressure 4 bar, boiler temperature range 69 – 90 (opt. 95 °C), 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