Gas log installation and replacement in Eagles Nest

Gas logs in a metal factory-built fireplace

Factory-built fireplaces are tested as complete systems, and their manuals say what may be burned in them. One vented log set manual gives separate damper opening figures for factory-built fireplaces, which only matter when the fireplace's own manual allows a log set in the first place.

For vent-free sets the code is stricter. Section 621.7 keeps an unvented decorative heater out of a factory-built fireplace unless that fireplace system is tested, listed and labeled for the use under UL 127. Our pros read both labels before recommending anything.

Why a log set smokes or soots

Smoke and soot from a gas log set have a known list of causes. One maker's troubleshooting table covers the chimney, the damper, the burner position, the media, the air openings and the logs themselves.

Our pros work through that list in order at your home, because the fix for a closed damper is nothing like the fix for a propane burner running on natural gas.

• Poor draft, downdraft or a closed damper
• Burner too close to the front of the firebox
• Media placed wrong or packed too tight
• Air mixer closed or air shutters blocked
• Logs out of position
• Burner built for the other gas
• Accessories that do not belong to the set

Leak testing every connection

Every joint made during an installation gets checked before the burner is lit. Gas appliance manuals we work from allow leak testing with a soap and water solution or an approved leak test spray and never with an open flame.

Our installers test each connection they make or disturb, including the valve, the flex connector and the burner inlet, and they repeat the check after the set has run. The test is written into the scope of every job.

Discoloration on the grate

Owners sometimes worry when the metal grate under the logs changes color. One maker notes that discoloration is common on the grate after burning.

Discoloration alone is not a reason for repair. Our technicians check that the grate is intact, sits where the manual shows and holds the logs in position, and they tell you when a change is cosmetic and when it is not.

Work that belongs to other trades

A gas log job can touch several trades. New gas piping belongs to a qualified gas contractor, tank and regulator work to your propane supplier and any new outlet for a remote receiver or fan to an electrician.

Our estimate shows each of those as separate work so nothing is hidden inside the log set price. We tell each trade what the set's manual requires, so their part of the job matches ours.