Montigo L38DF-ST - Manual (Page 19)

L38DF-ST* Indoor Gas Fireplace
Page 19 XG0810 - 150204.2
Installation
NOTE: If any of the original wire supplied with the appliance is
replaced, it must be replaced with the same type, or its
equivalent.
Installing the remote On/Off Wall Switch
The L38DF-ST* gas valve may be connected to a wall switch. Do
NOT connect any external power to the remote switch. The valve will
generate its own power on a millivolt circuit or will draw its power from
an AC Connection inside the fireplace, depending on the model of the
unit. Use only low voltage wire, and DO NOT connect any external
power to the remote switch.
Refer to Figure 16 or 17 for wiring requirements.
NOTE: The switch location must not exceed 30' from the fireplace.