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Edward Lowton
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Wood pellet boiler
25 January 2013
The high efficiencies and low particulate emissions claimed by Hoval for its STU biomass boilers are the result of thermally efficient design, advanced controls and high quality wood pellet fuel produced to the EN+ stan

The high efficiencies and low
particulate emissions claimed by
Hoval for its STU biomass boilers are
the result of thermally efficient
design, advanced controls and high
quality wood pellet fuel produced to
the EN+ standard.
Testing of the STU 195 wood pellet boiler by TÜV has confirmed efficiencies to 92% with an average of 3mg/MJ for particulate emissions, achieved through a combination of inverter controlled fuel feed augers and responsive induced air flow, regulated by a robust, strategically located lambda probe. Combustion is optimised by a Flametronix PLC based touchscreen control system.
Testing of the STU 195 wood pellet boiler by TÜV has confirmed efficiencies to 92% with an average of 3mg/MJ for particulate emissions, achieved through a combination of inverter controlled fuel feed augers and responsive induced air flow, regulated by a robust, strategically located lambda probe. Combustion is optimised by a Flametronix PLC based touchscreen control system.
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