Local gas fireplace repair with a free inspection in Rose Isle

The rating plate comes before any part

Every gas fireplace carries a rating plate, because Florida's fuel gas code expects appliances to be listed and labeled for the use they are put to. Heat & Glo's owner manual, for example, says its plate usually sits in the control area. It names the model, the serial number and the type of gas the unit was built for.

The plate also lists the pressure range and orifice size the burner was set up with. That is why a repair starts there. The same symptom on two fireplaces can call for different parts and settings, and a pilot assembly that fits one model can be wrong for the next.

Before any part is named, our technician reads the plate at your Rose Isle home and matches it to the maker's instructions. The model and gas type then go at the top of your estimate.

How a millivolt standing pilot system works

A millivolt system makes its own power from the pilot. On the millivolt pilots in two vent manuals, the pilot splits into three distinct flames. One heats the thermocouple, one heats the thermopile and one reaches toward the main burner.

Each of those two parts turns the heat into a small voltage. The thermocouple's output holds the pilot safety in the gas valve, and when it fades the pilot safety drops out. The thermopile's output powers the switch or remote circuit that opens the main burner, which is why one Heatilator manual says house power on its standing pilot units serves optional accessories and warns that wiring line voltage to the millivolt valve damages it.

A fault can sit in any link of that chain, from a weak thermocouple or tired thermopile to a loose lead, a switch or the valve itself. For Rose Isle homeowners, each link is tested in order before a part goes on the estimate.

Repairs that keep the appliance within its listing

Florida's code for fuel gas appliances says defective parts are replaced or repaired in a way that preserves the original approval or listing. A gas fireplace was tested as a system, with its own valve, pilot, burner, logs and glass. A part from outside that system can change how it behaves.

Makers say the same thing in plain words. Installation instructions from one insert maker warn against installing damaged, incomplete or substitute components, and say a component part it has not approved voids the warranty. Even wiring has a rule there, since damaged wire is replaced with high temperature rated wire.

Universal parts that the manual does not allow stay off our list. What we quote is the part the maker specifies for your model, named on the estimate by the maker's own description, and checked against these points.

• A part named in the maker's service parts list
• An accessory the maker has approved for the model
• Wire with the temperature rating the manual calls for

Homeowner tasks and technician tasks

Upkeep is split into two columns in one insert owner's manual. A few tasks are for the homeowner, done seasonally or once a year. The rest, including anything that touches the burner, pilot, gas pressures or the gasket and glass seal, is marked for a qualified service technician. The manual also says installation and repair should be done by a qualified technician only.

The homeowner column is short and practical. None of it involves adjusting the burner or pilot.

The manual adds that owners who are uncomfortable with any of these can call for a service appointment instead. On a maintenance visit in Rose Isle, our technician works through the technician column for your model, and the owner column stays with you.

• Checking the barrier front for damage
• Cleaning the glass once it has cooled
• Replacing remote batteries and testing the remote
• Looking over the vent cap for blockage