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Product overview
The Comfort series is state-of-the-art and most advanced biomass fuel combustion
units from VENMA. These burners feature a fly and bottom ash removal system.
Firing-up, combustion, quenching and cleaning is contained to the burner and
processed automatically for operation without any need for manual interaction. The burner
is fired up by supplying a pre-charge of fuel and ignition by an integrated igniter which heats
the pre-charged fuel to its ignition point. The combustion and quenching processes are
managed by an electronic control unit (ref. the control unit user manual). The burner is
cleaned of solid combustion residues by an ash rake. The burner is cleaned periodically
which helps with secondary combustion to use 100% of the charged fuel and improve the
costs of heating and reduce its environmental footprint. Cleaning of the burner also helps
extend the service life of the combustion chamber.
The burners are compatible with central heating boilers fired with solid fuels and
certain gas or fuel-oil boilers which feature a combustion chamber and an ash trap.
The VENMA burner is a very green heating solution which can be fuelled with
renewable materials, including pellets, fruit stones or oats.
The burner is managed by the included control unit which provides stepless
adjustment of the fuel and air mixing ratio to control the heat output to the heat demand.
The control unit can support up to 4 circulation pumps and 3 mixing valves. The control unit
also supports up to 6 temperature sensors (to accept outputs from a space heating cycle
temperature sensor, a DHW temperature sensor, a valve operation sensor, a return
temperature sensor, and thermal buffer sensors). The control unit features multiple
convenience and management features, including a PID flue gas sensor, a room temperature
controller, or an oxygen sensor to make operation of the burner easy and with much
comfort.
The burner features multiple fire protection features which, in the event of a failure
or overheating, isolate the fuel supply to prevent propagation of flames and a fire outside of
the combustion chamber. No electrical power blackout can harm the burner, since the fuel
charge present at any time in the burner’s combustion chamber is relatively small.
The fuel to be charged to the burner must be kept in a solid, sealed container
(a bunker) and handled to the burner via a screw (auger) fuel feeder from VENMA with
properly selected length and power output.
