05/30/2026
Gas Appliance Liners
Is your furnace, boiler, or water heater venting through an older masonry chimney?
Many older chimneys were originally designed to vent appliances that operated at much higher temperatures. Today’s high-efficiency gas appliances often produce cooler exhaust gases, which can lead to excessive condensation inside the chimney. Over time, this moisture can deteriorate mortar joints, damage flue tiles, and create unsafe venting conditions.
A properly sized stainless steel gas appliance liner can help:
✔ Improve draft and appliance performance
✔ Reduce moisture and condensation damage
✔ Protect the chimney structure from deterioration
✔ Improve overall safety and venting efficiency
✔ Help bring the system into compliance with current venting requirements
At Precision Chimney and Masonry Repair, we install UL-listed stainless steel gas appliance liners for boilers, furnaces, and water heaters. Every installation is completed according to manufacturer specifications and applicable NFPA 211 standards.
If your chimney has never been evaluated for proper gas appliance venting, now is the perfect time to schedule an inspection.
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Serving Milwaukee, Southeast Wisconsin, Northern Illinois, Lake County, McHenry County, and surrounding areas.
Precision Chimney and Masonry Repair
(414) 400-4837
Veteran Owned and Operated