OGF - ME Series
INSTALLATION REQUIREMENTS
DEFINITION
Installation of a Firefox OGF-ME series open fronted steel firebox into a non-combustible enclosure
constructed partially of masonry e.g. brick, concrete or Hebel blocks in conjunction with the specified
steel flueing system to draw and exhaust combustion gases up and away from the gas log firegrate.
1. Ensure that any air extraction devices located in the vicinity of the fireplace will not cause a
negative air pressure (suction) which could cause a spillage of combustion gases into the room where
the firebox is located when in operation.
2. GAS SUPPLY REQUIREMENT: Provide a 12mm (1/2”) copper gas pipe into the chamber with a
tail approx. ¾ of the way into the firebox. An access hole is provided on the right hand side of the unit
130mm up from the base and 140mm in from the front of the unit. For MJ/HR rating of the gas
firegrate burner refer to specification pages.
3. ELECTRICAL SUPPLY: The firebox is supplied with 1.5m of lead and a 3 pin plug located on the
lower left hand side of the unit. The lead must not rise above 100mm of the base level of the firebox.
If connecting to a wall mounted isolating switch, ensure that the switch is far enough away so as to not
obstruct the fitting of a decorative surround i.e. mantelpiece.
4. Construct a non-combustible enclosure as required to suit the selected Firefox OGF-ME series gas
firebox. The enclosure must completely surround the base, sides and back of the unit and rise
300mm above the top of the unit. Plasterboard can be Zero Clearance to the perimeter face flange of
the unit.
5. FLUEING REQUIREMENTS:
. Use the specified single skin galvanised inner active flue ONLY if the firebox and flue is to be
completely enclosed in masonry.
. Use the specified twin skin flue system i.e. galvanised inner active flue PLUS the galvanised
outer casing if the flue is to be exposed close to combustible materials i.e. timber framing.
. Secure inner active flues at each crimp joint with 4 pop rivets.
. Secure outer casings at each crimp joint with 4 x 25mm self tapping screws.
. A 25mm clearance to all combustible materials is required from the outer flue casing.
. Fit approved cowl as specified for the selected firebox/flue.
6. Permanent ventilation equal to the cross sectional area of the specified firebox flue must be
provided into the room/area the gas fire is located.
7. Use only the appropriate Firefox gas firegrate/burner (GFG) in conjunction with the selected Firefox
OGF/ME firebox
See GFG Series (GAS FIREGRATE) specifications
,
located in the following pages.
For installation and commissioning procedure of the gas burner/firegrate (GFG) refer to separate
details entitled: FIREFOX INSTALLATION & OPERATING INSTRUCTIONS ‘GFG’ Series GAS
FIREGRATES.
1
