Gas log installation in Pineloch

Glass doors on a fireplace with gas logs

Glass doors change how air reaches a burner. One log set maker wants the doors wide open the whole time the burner is lit, and where a door frame shuts off air to the fireplace floor, it asks for ventilation slots in the frame just above the floor.

The same manual says the opening with the doors fully open must still meet the minimum front width and height for the burner. Our crew checks the frame, the slots and the opening size before recommending a set.

Cleaning products and a warm vent-free set

Household products behave differently near a heater. One vent-free manual asks owners to turn the heater off before using furniture polish, wax, carpet cleaner or similar products, since heated vapors can leave a white powder residue in the burner box or on nearby walls and furniture.

The same manual says not to run the heater where flammable liquids or vapors are used or stored, or in dusty conditions. Our technicians cover points like these at the handover.

Yearly service for a gas log set

One vented log set manual says the appliance should be examined before use and inspected at least once a year to prevent burner shutdown, sooting and odors, with checks for clean burning and proper pilot appearance.

The same manual notes that propane sets may need more frequent cleaning than natural gas sets. Our free inspection covers the burner, the pilot, the logs, the media and the damper clamp, and work booked within 72 hours after it is 10% off.

When the log set pilot keeps dropping out

When a log set pilot lights and then drops out, one maker's troubleshooting table points to several parts. Our technicians check each one before recommending a repair.

Pilot parts are specific to the valve, so replacements come from the set's own parts list.

• A valve that will not hold
• A pilot hood bent away from the thermocouple
• A bent or kinked pilot line
• A loose, cracked or worn thermocouple
• Excessive downdraft in the chimney

A vent-free set that keeps shutting off

The oxygen depletion system on a vent-free set shuts it down when there is not enough fresh air, which one manual describes as the heater needing fresh air ventilation to run properly. A set that shuts off again and again is a signal to check the room before the set.

Our pros look at the room's size, the air supply, drafts across the firebox and the pilot itself. The ODS is never bypassed, and the estimate explains what the fix is and why.