Gas fireplace venting checked and repaired in Countryside

Air space around the vent pipe

Vent pipe needs open air around it. In one maker's chart, horizontal pipe keeps 3 inches of space above it and 1 inch below and to each side until it reaches the outside wall, and the pipe keeps a 1 inch gap on every side where it passes through that wall and wherever it runs vertically.

The same maker warns that stuffing insulation or anything else into those gaps can drive temperatures up and create a fire hazard. Our crew checks every section it can reach for framing, wiring or insulation crowding the pipe and lists any correction in the estimate.

• 3 inches above horizontal runs in that manual
• 1 inch at the sides and bottom
• 1 inch all around at walls and on vertical runs

Where the pipe passes into the attic

A vent that climbs through a ceiling into an attic needs a firestop at the ceiling, and one maker calls for an attic insulation shield where insulation could otherwise fall against the pipe. The shield keeps the required air space open no matter how much insulation surrounds it.

Attic work often disturbs these parts. After new insulation or other attic jobs, our pros check that the shield is still in place, that nothing has been piled against the pipe and that the firestop was not cut or removed.

Sidewalks and driveways under the cap

People walk and park under sidewall caps more often than owners realize. One maker asks for 7 feet of clearance above a paved sidewalk or driveway on public property, and it rules out a cap directly above a paved sidewalk or driveway that sits between two single-family homes and serves both.

Our crew checks what sits below and in front of your cap, including side yards between houses, and writes down any location the chart does not allow.

Before the first fire of the cool season

A fireplace that has been off for months deserves a short check before the first evening it runs. The cap may hold leaves or nesting, the glass latches may have loosened and the yard may have changed.

Our pros clear and check the cap, confirm the glass is seated and secured, look at the reachable joints and run the fireplace long enough to watch the flame settle. It is a quick visit that often saves a service call later in the season.

Odor during the first hours of a new install

A brand-new gas fireplace often gives off an odor the first time it runs, and one maker explains it comes from the manufacturing process. The same manual asks for the room to be well ventilated during that burn-off, with the windows open.

It recommends burning the fireplace for about ten hours on first use with the fan switched off. After we install a new vent and fireplace, our technicians explain that first burn so the smell is expected, and they tell you what would not be normal.