Gas fireplace repair for Mercy Drive homes

Converting between propane and natural gas

A fireplace built for natural gas cannot just be switched to propane, or the other way round. Each manual we checked says the appliance runs only on the gas type on its rating plate unless the maker's conversion kit is used, and one insert maker adds that a qualified service technician makes the conversion with its specified and approved parts.

A conversion changes more than a label. The orifice size differs between the two gases, and the air shutter table in that maker's installation manual gives different settings for natural gas and propane on several models. The same manual opens its conversion steps by asking for the appliance to be checked against the gas types actually available.

If the gas at the house has changed, or the fireplace came from somewhere else, the plate and the parts inside are compared with the gas actually supplied. A kit conversion, where the maker offers one, is quoted as its own line on the estimate.

Soot on the logs, glass or firebox top

Black marks on the logs, the inside of the glass or the top of the firebox are a symptom, not dirt. Manufacturer manuals treat sooting as a fault with a cause, and cleaning it off without fixing that cause only resets the clock.

In one maker's charts, sooting glass is traced first to flames striking the logs, which means the logs are off the diagram, then to a blocked injector or air intake and to the gas supply. An insert maker adds the air shutter setting to that list.

We find where the flame is striking and why, correct what the manual calls for and list any cleaning or damaged parts on the estimate for your Mercy Drive home. The causes named across those manuals include these.

• Logs moved off the maker's diagram
• An air shutter closed past its setting
• Embers or rock wool over the burner ports
• A blocked injector or air intake

Cracked or chipped glass takes the fireplace out of use

The manuals are direct about damaged glass. One insert maker says not to operate the fireplace with the glass removed, cracked, broken or scratched, and to replace it as a complete assembly. A direct vent manual from another maker says to replace glass that is chipped, cracked or broken, and that replacement glass door assemblies must come from the fireplace maker, with no substitute materials.

The front on these units is ceramic glass fitted to a frame and gasket, not a pane cut to size at a hardware counter. The insert maker adds that its glass is ceramic, to be replaced only with ceramic glass obtained through the dealer. Until the new assembly is in, the fireplace stays off, even when the crack looks small.

Glass work belongs to our gas fireplace glass replacement service. On a repair visit, our technician confirms the damage, reads the model from the rating plate so the right assembly can be matched and looks at the burner and media for anything the manuals link to breakage. The glass then appears as a separate line routed to that service.

After a remodel around the fireplace

Remodeling near a gas fireplace leaves traces inside it. Dust from sanding and cutting settles in the control compartment, on the burner and in the air passages, and the manuals already call for more frequent cleaning where dust is heavy. An owner's manual we work from notes that finishing materials and adhesives around the appliance can release odor when it runs.

The finish itself has to suit the heat. The matching installation manual publishes wall surface temperatures above its fireplaces and says to use finishing materials able to withstand them. It also notes that heat exposure can open cracks in drywall joints next to the fireplace.

After a remodel in your Mercy Drive home, our technician cleans the dust out before the fireplace is used and checks that the front and panels still come off. Anything the new work affects is listed on the estimate.