Thursday, September 21, 2023

Viessmann Pyrotec Biomass Boiler

Viessmann Pyrotec Biomass Boiler

This is your not-so-average, state-of-the-art biomass wood boiler. The Pyrotec water boiler combines creativity with modern technology to give you a commercial boiler that outputs 85% efficiency.

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Like the Pyrot, the Pyrotec combines innovation and efficiency to give you one of the best sources of heat using wood.  The Pyrotec biomass boiler uses a burner trough with an attached external grate and a moving annealing grate to achieve the best combustion results. A feed auger moves the wood fuel into the burner trough where the fuel is pre-dried and gasified under precisely controlled air. On the external and moving annealing grate, the fuel completely gasifies. Precisely controlled secondary air is injected to fully combust the gas and thermal energy is released into the boiler’s triple-pass heat exchanger.



  • Advanced combustion technology
  • Triple-pass heat exchanger
  • Modulating output control
  • Compressed firebricks with high alumina content
  • Cast-crome steel to handle hight tempratures
  • Fully automatic deashing
  • Automatic ignition
  • Heavy duty constructions and components


  • Pneumatic cleaning system
  • Flue gas deduster
  • 30 or 60 psig


Click here for Single Line PEX Pipe

Click here for Dual Line PEX Pipe




Model Size MBH/kW
KPT-390 94" H x 129" L x 49" W 1330/390
KPT-530 100" H x 150" L x 50" W 1809/530
KPT-720 112" H x 153" L x 55" W 2457/720
KPT-950 120" H x 150" L x 64" W 3242/950
KPT-1250 130" H x 170" L x 64" W 4268/1250

Installation & Operation Support

Obadiah's is a Montana based company, in the Rocky Mountains near Glacier National Park, we understand cold, we depend on our product and our knowledge is backed by 50+ years of experience. We provide technical support and knowledge to assist your builder or contractor with understanding and installing your new unit and we deliver international directly to your house.

Just call 1-800-968-8604 Mon-Fri. 9-5 Mountain Standard Time.





Viessmann Pyrotec Biomass Boiler

Viessmann Pyrotec Biomass Boiler

Viessmann Pyrotec Biomass Boiler

Viessmann Pyrotec Biomass Boiler

Viessmann Pyrotec Biomass Boiler

Please call or email for a price quote and specify the model you are interested in and your zip code.  One of our sales associates will be glad to answer your inquiry.

Heat Area (sq.ft.)
Fireplace Specific Options





Cooktop Material

Water Heating Options

Flue Orientation


Venting (Gas Stoves)


Viewing Area

Interior Style