Viessmann Products
Viessmann literature is available for downloading. Please click on the links below to learn more about the products we offer.

Pyrot - Industry leading rotary combustion wood-fired boiler. Ranges from 512-1843 MBH. For wood fuels with a maximum water content of 35%.







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Service & Maintenance  Warranty










Pyrotec- State of the art underfeed combustion wood-fired boiler. Ranges from 1330 - 4268 MBH. For wood fuels with a maximum water content of 50%.









Download BrochureTechnical DataInstallation & Operation
Service & Maintenance  Warranty











Thermal Storage Tanks - When used in conjunction with the biomass boilers, the thermal storage tank acts as a thermal reservoir and as a hydraulic break, decoupling the boiler and the system circuit from each other.













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Contact us:

NEES
8A Main Street
Dexter, Maine  04930

(207) 924-5772
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This page was last updated: December 28, 2012
Benefits of a Viessmann Boiler at a glance:

  • High efficiency with advanced combustion technology, triple-pass heat exchanger and modulating output control (turndown ration 4:1).
  • Maximum heat transfer with triple-pass heat exchanger.
  • High efficiency and ultra-low emissions with precisely controlled primary and secondary air.
  • Low maintenance with fully-automated de-ashing, optional pneumatic cleaning system and flue gas de-duster.
  • Advanced safety equipment ensures safe and reliable operation.
  • Maximum system performance with heavy-duty construction and all system components from one source.
  • Automatic ignition device limits idling and saves fuel (optional-only for fuels with >35% moisture content).
  • Custom design of your system by our team of experts.


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