©
EUROHEAT
DISTRIBUTORS (H.B.S) LTD.April 2007
E&OE Instructions Part Number IN1190 Ed B
H11##0105A
18
The operation of an oil stove with its naturally aspirated burner relies upon the correct amount of air
being supplied to the burner for all firing rates. Too little air being supplied will result in incomplete
combustion and the formation of soot and too much air will not only result in incomplete and noisy
combustion but the excess air only serves to cool the stove. Achieving the correct burner air pressure
at all firing rates has always been, at best a tediously difficult operation, and a task that has sometimes
proven to be almost impossible. Whilst extending and insulating a flue will cure uniformly low draught
and fitting a choke plate will reduce excess draught, the adjustment of the stabilizer which can only
be set to give to one counter balance weight bias to control the range of flue draughts necessary for
all firing rates is often an adjustment to achieve a compromise rather than an ideal.
Our new, and patented, magnetically adjusted draught stabilizer overcomes this problem by
magnetically varying the effective biasing of the flap to correspond to the setting of the fuel valve. In
practice this means that the draught stabilizer’s counter balance weight can be adjusted to give the
correct flue draught with the fuel valve at its minimum setting and as the fuel valve is turned from its
minimum to maximum settings the pressure at which the flap opens will automatically be the correct
operational pressure for the fuel rate.
The commissioning time for a stove can now be dramatically reduced and in many instances the
operation of the stove being better than ever achieved before.
The magnetic draught stabilizer is not designed to induce draught in a stalling flue nor will it control
ridiculously high flue draughts, it is designed to provide the correct draught settings with flues whose
inadequate or excessive draughts have been brought to within reasonable parameters.
Further information can be obtained from your Euroheat dealer or directly from Euroheat by requesting
technical document IN 1078 Progressive Draught Stabalizer.
Due to the construction of the various stoves there are specific stabilizers for each stove:
Harmony 5 DR030
Harmony III / Coachman 8” - 10” DR031
Harmony I & II DR032
Progressive Draught Stabilizer
