Operating Instructions
Standard, Universal, Low and Extra Fires
Lighting after Installation
A Jetmaster should not be lit until all cement and plasterwork is completely dry and cured. As a
basic guide the installer should
a. Allow a 7-day drying time if the house has other forms of heating.
b. Allow at least 14 days if the installation is in a new or unoccupied property, or is fitted into
a completely new chimney breast.
Wood Burning Trays and Basket Grates
Jetmaster fires may be used to burn a variety of fuels. Fuels must not be burned directly in the
firebox. A range of wood burning trays, basket grates or gas burners are available to ensure that
each fuel is burned in the most effective way. Make sure that you have the right accessories to
get the best out of your fuel and your fire.
Wood Burning Tray
Use the wood burning tray when burning wood alone. (Solid mineral fuel or smokeless fuel
cannot be burned in the wood tray).
Allow the ash to build up to about 1” (25mm) deep in the wood burning tray to ensure even and
efficient burning. A new wood burning tray should always be started with some ash or sand in
its base
Ash Removal Ash should be allowed to build up in the tray and after a few weeks a hard lump
of ash will form under the hottest part of the fire. This should be left alone. It is desirable to clean
out a few small shovels full of the surplus light ash from the front and sides every 2-3 weeks.
(This may be more frequent if burning heavily). If this is done when there are some glowing
embers and with the throat restrictor open, any dust stirred up will be sucked up the chimney.
Keep the back and side air passages clear at all times.
When removing the tray and replacing always ensure that the tray is fitted the correct way
around. The tray should be fitted with the centre foot of the tray towards the rear of the firebox.
See Fitting the Wood Tray and Log Retainer in the Installation section of this booklet.
Lighting with Wood Burning Tray
When lighting the fire, the throat restrictor should be opened fully by pulling the operating lever
foreword. The fire may be lit using proprietary firelighters with kindling wood. Once this has
established slightly larger pieces may be added until the fire has a hold. At this point split logs or
whole logs may be added. The right technique comes with a little experience, and varies with the
type of fuel being burnt. See sections on Use of the Throat Restrictor and Fuels below.
Basket Grates
Use the basket grate for burning solid mineral fuels and smokeless fuels.
Wood can be burned in the basket grate but will burn away quickly and therefore is less
effective.
Ash Removal The removable ash pan simply slides out from under the grate for easy emptying.
Do not allow ash to build up in the ash pan until the grate bars are covered as this seriously
reduces the life of the grate. See Fitting the Basket in the Installation section of this booklet.
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