Hearth & Home Technologies Everest User Manual

Heat & Glo  •  Everest  •  750-900  Rev. o  •  10/08

18

 - One ceiling fi restop is REQUIRED 

at the hole in each ceiling through which the vent 
passes.

To install fi restops for vertical runs that pass through 
ceilings:

•  Position a plumb bob directly over the center of the verti-

cal vent component.

•  Mark the ceiling to establish the centerpoint of the 

vent.

•  Drill a hole or drive a nail through this centerpoint.

• Check the fl oor above for any obstructions, such as wir-

ing or plumbing runs. 

• Reposition the fi replace and vent system, if necessary, 

to accommodate the ceiling joists and/or obstructions.

•  Cut a 10 inch x 10 inch (254 mm x 254 mm) hole through 

the ceiling, using the centerpoint previously marked.

•  Frame the hole with framing lumber the same size as 

the ceiling joists.

If the area above the ceiling is NOT an attic, position 
and secure the ceiling fi restop on the ceiling side of the 
previously cut and framed hole.

This shows a ceiling installation.

If the area above the ceiling IS an attic, position and secure 
the fi restop on top of the previously framed hole.

This shows an attic installation. Keep insulation away from 
the vent pipe at least 1 inch (25 mm).

To install fi restops for horizontal runs that pass through 
either interior or exterior walls:

•   Cut a 12 inch by 10 inch (305 mm X 254 mm) hole 

through the wall. The center of the hole is one (1) inch 
(25.4 mm) above the center of the horizontal vent 
pipe.

• Position 

the 

fi restops on both sides of the hole previously 

cut and secure the fi restops with nails or screws. 

•  The pipe opening of the fi restops MUST be placed 

towards the bottom of the fi replace.