Summary Of Minimum Jetmaster Installation Specifications
1. Hearth
Autoclaved aerated lightweight concrete block,or for hearths
26mm thick FC Sheeting or any suitable non combustible
material like slate, granite or marble is acceptable.
• Models 400-700D must be minimum 26mm thick.
• Models 850-1500 must be minimum 100mm thick. This
includes selected finish such as ceramic tiles, marble or
granite.
• Must project forward of aperture by a minimum of 300mm.
• Must project either side of aperture by a minimum of
200mm.
2. Flue
• Single skin flue (stainless steel) must be enclosed with single
skin brickwork, concrete, or autoclaved aerated concrete
block.
• Twin skin flues (stainless steel inner, and galvanised outer)
can either be left exposed or enclosed with stud walls and
sheet plaster or timber. A minimum of 50mm clearance must
be maintained between the outer flue and any combustibles.
If using double skin flues space inner and outer flues using
3x25mm self tapping screws through outer casing at
bottom, at each join and at top. Also ensure that flues are
ventilated at top and bottom, and when using a cover cone
drill a series of holes into the outer flue below the cover
cone to ensure adequate ventilation.
• Fit cowl to flue or chimney breast.
3. Enclosure
• A minimum of single skin brickwork, concrete, or autoclaved
aerated concrete block must surround the firebox and
gather at back, sides and front. A minimum of 25mm air gap
filled with insulation material provided must be maintained.
PAGE 7
JETMASTER
300mm MIN.
200mm MIN.
SINGLE SKIN
STAINLESS FLUE
TWIN SKIN FLUE
STAINLESS INNER
GALVANISED OUTER
50mm MIN.
CLEARANCE
25mm MIN.
INSULATION
BRICKWORK
JETMASTER
SELECTED FINISH
BRICK ON EDGE
BRICK ON FLAT
300mm MIN
100mm MIN (Models 850-1500)
26mm MIN (Models 400-700D)
