3.1 Greenflame Boiler Features
The heat exchanger has been designed and developed to provide maximum efficiency
and combustion quality as well as not having to compromise on space. The compact
nature of it’s design has allowed the integral hopper to be incorporated as part of the
overall unit. The secondary heat exchanger is cleaned by mechanically operated
spirals which actuate vertically at pre-determined intervals to clean the tubes.
The drop feed burner is fitted to the side of the boiler where the flame fires in a
horizontal direction across the combustion chamber. The flue gases are then forced
to rise to the top of the chamber and are forced down behind the refractory board
which aids in the complete combustion of the flue gases. The flue gases must then
rise again through 12 vertical pipes before exiting through the flue chamber at the rear
of the boiler and are eliminated through the flue. The flue has an exhaust fan which
aids in providing the ideal draft conditions for the appliance to work efficiently and
safely. The flue fan is controlled automatically by a vacuum sensor in the combustion
chamber which will automatically adjust the exhaust fan to provide the optimum under-
pressure conditions in the combustion chamber.
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