Capital Sirius 490MF Installation And Operating Instructions Manual page 15

Operation
ALWAYS OPEN THE STOVE DOOR SLOWLY AND ALWAYS USE THE GLOVE
Primary Air
Primary air is controlled via the rotating vent in the bottom of the door. This
provides an air draught to the bed of the fire. Rotate anti‐clockwise to open and
clockwise to close. Open this when you start a fire and to manage anthracite
fires. It should be closed when a wood fire is established for the best efficiency.
Secondary Air
Secondary air is controlled via the sliding vent above the door, it is this 'airwash'
that keeps a clean and uninterrupted view of the fire, also aiding good
secondary combustion of fuel and reducing emissions into the chimney and
environment. Slide to the right to open and to the left to close. Use this to
control wood fires. It should be closed when burning anthracite for the best
efficiency after the fire is established.
Tertiary Air ‐ Sirius 490WD and 790WD ONLY
The Sirius 490WD and Sirius 790WD stoves are fitted with a tertiary (third) air
inlet system. Air is bled into the stove from the rear panel. Its function is to
ignite unburned gasses assisting with a clean burn. It is advisable to clear these
holes from time to time with a brush, especially when the stove is being serviced
or after long periods of burning – particularly if "dirty" fuels such as damp wood
or bituminous coal are used. ONLY CARRY OUT THIS AND ALL SERVICING
PROCEDURES WHEN THE STOVE IS COLD. This tertiary air supply is permanently
open and allows a small amount of air into the stove. Operation with the air
controls open can cause excess smoke. These stoves must not be operated with
air controls open except as directed in these instructions.
Lighting the Stove
It is essential that you have three or four small fires before you operate the
stove to its maximum heat output. This is to allow the paint to cure and to
"temper" your cast iron stove. We recommend this 'running‐in' procedure after
long shutdowns to preserve the life of stove. During the curing of the paint, you
Sirius MF&WD Version 1 November 2013