Monessen Hearth DLX28 - Manual (Page 11)

14D2099 11
16"
42"
W
ARNING
The dimensions shown in Figures 3 through 11 and defined in the fireplace
manufacturer's instructions are minimum clearances to maintain when installing
this heater. Left and right clearances are determined when facing the front of the
heater.
When heater is installed into a ventless firebox, minimum clearances, as specified
by the ventless firebox manufacturer, must be met.
Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fire hazard.
CLEARANCES
AND
HEIGHT REQUIREMENTS
Sidewall and ceiling clearances: The sides of the fireplace opening must be at least 16" from any combustible wall.
The ceiling must be at least 42" from the top of the fireplace opening.
Figure 4 - Sidewall & Ceiling Clearances