Gas fireplace service and repair in Kalamazoo

Gas fireplaces and inserts have become a common way to warm a living room in Southwest Michigan, from new builds with direct-vent units to older homes where a wood-burning hearth was converted to gas. They are simple appliances, but they sit idle for months, and a spider web in a pilot tube or a weak thermocouple is enough to keep one from lighting on the first cold evening.

Our technicians service direct-vent fireplaces, inserts in masonry chimneys and freestanding gas stoves. The visit covers the pilot assembly, the gas valve, the burner and logs, the glass and gasket, and the vent. Every service ends with a leak check and a flame inspection, since a fireplace that burns poorly can leave soot on the walls and add carbon monoxide to the room.

Signs you need gas fireplace service

How a gas fireplace lights and stays lit

Most residential gas fireplaces use a standing pilot. When you press and hold the control knob, gas flows to the pilot and a piezo spark lights it. The pilot flame heats a thermocouple, which produces a tiny voltage that holds the gas valve open. A larger thermopile, also heated by the pilot, generates enough voltage to open the main burner valve when you flip the wall switch or press the remote.

Newer units often use intermittent pilot ignition, which lights the pilot only when heat is called for and runs on a battery or a household circuit. The parts fail in predictable ways. Thermocouples and thermopiles weaken with age, pilot orifices clog with dust and insects over summer, and wall switch wiring can corrode. Our technicians test each part with a meter rather than replacing parts by guesswork.

What the annual service includes

The technician turns off the gas and lets the unit cool, then removes the glass front and the logs. The pilot hood and orifice are cleaned, and the thermocouple and thermopile output is measured in millivolts. The burner ports are cleared, embers or lava rock are refreshed, and the logs are set back in the exact positions shown in the manufacturer's diagram, which keeps flames from hitting the logs and making soot.

The glass is cleaned with a non-abrasive fireplace cleaner and the gasket around it is checked for gaps. Outside, the vent cap is inspected for nests, leaves and ice. The gas valve and connections get a leak check, then the fireplace is lit and run long enough to judge flame color, height and the draft at the vent. Any reading that looks off is explained before the technician leaves.

• Pilot, orifice and burner cleaning
• Thermocouple and thermopile millivolt test
• Log placement per manufacturer diagram
• Glass cleaning and gasket check
• Vent cap inspection and gas leak test

Venting and safety

Direct-vent fireplaces pull combustion air from outside and exhaust through a sealed two-layer pipe, usually through a sidewall. That cap must stay clear, and in towns along the lake shore with heavier lake-effect snow, drifting can block it. Inserts in masonry chimneys rely on a liner running to the top of the chimney, and the technician checks the connection at the insert and the cap where it can be seen.

Ventless gas logs are a different matter. They release combustion products straight into the room and add a lot of moisture, which can cause condensation on windows in a tight Michigan home. If you have ventless logs, the technician will check the oxygen depletion sensor and talk through options. A working carbon monoxide check of the room is a smart step with any gas fireplace.

Common repairs and upgrades

The most frequent repair is a new thermocouple or thermopile, followed by pilot assemblies, igniter electrodes and wall switch wiring. Remote receivers wear out too, especially battery-powered ones that sat with dead batteries all summer. Gas valves fail less often but do happen on fireplaces past 15 years. Our technicians carry the common universal parts and order brand-specific ones when needed.

Some homeowners want more from the fireplace, such as a blower kit that pushes warm air into the room, or a thermostat-controlled remote that cycles the flame to hold a set temperature. These additions can turn a decorative fireplace into a useful heat source for a cold living room. If the fireplace is the only heat in an addition or sunroom, a ductless mini-split may also be worth considering.

How a gas fireplace service visit works

1. Call with the fireplace typeCall (269) 360-5258 and describe the unit and what it is doing, or not doing.
2. Cooldown and teardownGas is shut off, the glass and logs are removed and the burner area is opened up.
3. Clean and testPilot, burner and controls are cleaned, and thermocouple and thermopile output is measured.
4. Repair if neededAny weak or failed part is priced, approved by you and replaced.
5. Reassemble and burn testLogs and glass go back in place, the gas is leak checked and the fireplace is run to confirm a clean flame.