MartinLogan VENT-FREE FIREPLACE SYSTEMS 33ISDG - Manual (Page 17)

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To reach factory installed flex line, go through access door on right or left side of firebox.
CONNECTING THE GAS
CHECK GAS TYPE: The gas supply must be the same as stated on heater's rating plate.
Located behind the control access door (Figure 1, page 5). If the gas supply is different,
DO NOT INSTALL the heater. Contact your dealer for the correct model. Connecting to
the wrong gas type may result in property damage or personal injury.
CAUTION
Connecting directly to an unregulated
propane/L.P.G. tank can cause an
explosion.
W
ARNING
Figure 18 - Access Holes
Cord Protector
Manual Gas Shutoff
(Recommended Outlet
Positioned Vertical)
Stainless Flex Line
Access Door
for Gas Line