Skip to content
Back to wood chip boilers
hackgut icon

Wood Chip Boiler

Wood Chip
Cascades

up to 2 MW

Up to 6,800,000 BTU/h
High reliability
Optimum performance

Cascade control for multiple ­systems

Targeted operation with up to 6 boilers

Hargassner’s Eco-HK and Eco-PK series allow for a flexible and efficient heating setup. By switching between 2 to 6 heaters in a cascade, highest reliability and efficiency are ensured. The smart control system balances identical running times, extending the lifespan and operational stability of each boiler. Efficient, effective, cost-saving heating works like this today!

  • Highest operational safety
  • Optimum low load coverage
  • Sophisticated control system tailored to your needs
  • Cost-reducing and efficient operation
  • Large discharge volume
  • Mature technology
  • Optimum price-performance ratio

Technical
details

    Eco-HK 70
    Nominal capacity (NC) 70 kW
    Fuel heat output 73 kW
    Minimum capacity 21 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95,6* %
    NCV efficiency at 30 % nominal output (np) 95,3 %
    Fuel efficiency in NC 87,5 %
    Fuel efficiency in 30% NC 87,1 %
    Seasonal energy effiency ETAs 83** / 83** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1811 x 1560 (34 x 71 x 61 in) mm
    Weight 1100 (2425 lb) 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 "
    Energy label A++
    Eco-HK 90
    Nominal capacity (NC) 90 kW
    Fuel heat output 94 kW
    Minimum capacity 27 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95,2* %
    NCV efficiency at 30 % nominal output (np) 96 %
    Fuel efficiency in NC 87,3 %
    Fuel efficiency in 30% NC 87,5 %
    Seasonal energy effiency ETAs 84** / 83** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1811 x 1560 (34 x 71 x 61 in) mm
    Weight 1100 (2425 lb) 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 "
    Energy label -
    Eco-HK 100
    Nominal capacity (NC) 99 kW
    Fuel heat output 105,5 kW
    Minimum capacity 30 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 95* %
    NCV efficiency at 30 % nominal output (np) 96,3 %
    Fuel efficiency in NC 87,2 %
    Fuel efficiency in 30% NC 87,7 %
    Seasonal energy effiency ETAs 84** / 83** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1811 x 1560 (34 x 71 x 61 in) mm
    Weight 1150 (2535 lb) 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 "
    Energy label -
    Eco-HK 110
    Nominal capacity (NC) 108 kW
    Fuel heat output 115,4 kW
    Minimum capacity 32,4 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 94,7* %
    NCV efficiency at 30 % nominal output (np) 96,7 %
    Fuel efficiency in NC 87,1 %
    Fuel efficiency in 30% NC 87,9 %
    Seasonal energy effiency ETAs 84** / 83** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1811 x 1560 (34 x 71 x 61 in) mm
    Weight 1150 (2535 lb) 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 "
    Energy label -
    Eco-HK 120
    Nominal capacity (NC) 120 kW
    Fuel heat output 127 kW
    Minimum capacity 36 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 94,5* %
    NCV efficiency at 30 % nominal output (np) 97 %
    Fuel efficiency in NC 87 %
    Fuel efficiency in 30% NC 88,1 %
    Seasonal energy effiency ETAs 84** / 84** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1811 x 1560 (34 x 71 x 61 in) mm
    Weight 1150 (2535 lb) 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 "
    Energy label -
    Eco-HK 150
    Nominal capacity (NC) 149 kW
    Fuel heat output 159,5 kW
    Minimum capacity 44 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 93,4* %
    NCV efficiency at 30 % nominal output (np) 93,1 %
    Fuel efficiency in NC 85,6 %
    Fuel efficiency in 30% NC 87,2 %
    Seasonal energy effiency ETAs 84** / 84** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 875 x 1966 x 1790 (34 x 77 x 70 in) mm
    Weight 1450 (3197 lb) kg
    Filling volume - l
    Space requirement 1,37 m²
    Flue pipe diameter 200 (8 in) mm
    Ash box volume 75 l
    Water content 253 l
    Flow/Return 2" / 2" "
    Energy label -
    Eco-HK 200
    Nominal capacity (NC) 199 kW
    Fuel heat output 213,7 kW
    Minimum capacity 59 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 94,4* %
    NCV efficiency at 30 % nominal output (np) 97,4 %
    Fuel efficiency in NC 83,2 %
    Fuel efficiency in 30% NC 85,5 %
    Seasonal energy effiency ETAs 82** / 85** %
    Boiler temperature range 185°F / 85 °C °C
    Measures (w x h x d) 945 x 2116 x 1905 (37 x 83 x 75 in) mm
    Weight 1600 (3527 lb) kg
    Filling volume - l
    Space requirement 1,80 m²
    Flue pipe diameter 250 (10 in) mm
    Ash box volume 75 l
    Water content 360 l
    Flow/Return 2,5" / 2,5" "
    Energy label -
    Eco-HK 250
    Nominal capacity (NC) 250 kW
    Fuel heat output 267 kW
    Minimum capacity 75 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 93,3* %
    NCV efficiency at 30 % nominal output (np) 94,7 %
    Fuel efficiency in NC 83,3 %
    Fuel efficiency in 30% NC 86 %
    Seasonal energy effiency ETAs 82** / 82** %
    Boiler temperature range 203 °F / 95°C °C
    Measures (w x h x d) 1155 x 2216 x 2285 (45 x 87 x 90 in) mm
    Weight 2500 (5512 lb) kg
    Filling volume - l
    Space requirement 2,62 m²
    Flue pipe diameter 250 (10 in) mm
    Ash box volume 75 l
    Water content 570 l
    Flow/Return 2,5 "
    Energy label -
    Eco-HK 300
    Nominal capacity (NC) 300 kW
    Fuel heat output 320 kW
    Minimum capacity 90 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 93,5* %
    NCV efficiency at 30 % nominal output (np) 95,8 %
    Fuel efficiency in NC 83,3 %
    Fuel efficiency in 30% NC 86,4 %
    Seasonal energy effiency ETAs 83** / 83** %
    Boiler temperature range 203 °F / 95°C °C
    Measures (w x h x d) 1155 x 2216 x 2285 (45 x 87 x 90 in) mm
    Weight 2500 (5512 lb) kg
    Filling volume - l
    Space requirement 2,62 m²
    Flue pipe diameter 250 (10 in) mm
    Ash box volume 75 l
    Water content 570 l
    Flow/Return 2,5 "
    Energy label -
    Eco-HK 330
    Nominal capacity (NC) 330 kW
    Fuel heat output 352 kW
    Minimum capacity 99 kW
    Electric capacity - kW
    NCV efficiency at nominal output (nn) in % 93,6* %
    NCV efficiency at 30 % nominal output (np) 96,4 %
    Fuel efficiency in NC 83,4 %
    Fuel efficiency in 30% NC 86,7 %
    Seasonal energy effiency ETAs 83** / 83** %
    Boiler temperature range 203 °F / 95°C °C
    Measures (w x h x d) 1155 x 2216 x 2285 (45 x 87 x 90 in) mm
    Weight 2500 (5512 lb) kg
    Filling volume - l
    Space requirement 2,62 m²
    Flue pipe diameter 250 (10 in) mm
    Ash box volume 75 l
    Water content 570 l
    Flow/Return 2,5 "
    Energy label -

    NCV = Net Calorific Value | GCV = Gross Calorific Value
    per cascade boiler:
    max. operation temperature 95 °C | max. operating pressure 3 bar | electrical supply 400 V AC, 50 Hz, 13 A fuse protection

    Get your new heating system
    in just a few steps

    More about Hargassner
    The right boiler for every power requirement.

    01

    Contact us

    Get more information
    and schedule an appointment.

    02

    Request

    Our team looks forward to
    hearing from you and providing
    you with professional advice.

    03

    Appoint­ment

    We will inform you in detail
    about our heating solutions and the
    corresponding heating supplies
    for your biomass heating system.

    04

    Customized offer

    We create an energy- and
    cost-efficient offer that
    is tailored to your needs.

    Hargassner North America

    Your
    contact partner

    Find your local heating expert