Shared flue and multi-appliance liner assessment for West Greenville's converted mill district properties — each appliance must have its own dedicated liner. Camera inspection and vent connector tracing confirm what's connected before scope is written. Written scope before work begins.
West Greenville's industrial mill buildings were converted into residential lofts and live-work spaces over the past two decades. These buildings contain large masonry chimneys that originally served single industrial boilers or furnaces. During conversion, multiple residential appliances — gas furnaces, water heaters, fireplaces — were often connected to the same chimney structure without proper liner separation. Relining begins with determining how many appliances connect to each chimney and whether they share a flue.
Original industrial chimneys in the West Greenville mill district were large-bore, single-flue structures built for high-volume commercial boiler exhaust. During residential conversion, these chimneys were often subdivided or shared among multiple units without installing dedicated liners for each appliance. A chimney that originally served one boiler may now connect to a gas furnace in Unit A, a gas water heater in Unit B, and a decorative fireplace in a shared common space — all venting into the same tile flue. Camera inspection traces each vent connector opening in the chimney to identify what connects where.
Camera inspection from both directions identifies every vent connector opening inside the chimney. Each opening is traced to its appliance — gas furnace, water heater, fireplace, or abandoned. Number of active appliances confirmed before scope is written.
One liner per active appliance — diameter sized to that specific appliance's Btu input and vent connector size. Alloy selected by appliance type independently: 304 for wood, 316L for standard gas, AL29-4C for high-efficiency condensing gas.
Existing chimney interior width and tile configuration checked to confirm adequate physical space for two parallel liners where required. Large mill-era chimneys often have sufficient interior space — but this is confirmed before liners are ordered.
Each liner installed and connected independently to its appliance. Top plate at the chimney crown covers the entire chimney top with individual openings for each liner — sealed between openings to prevent moisture entry between liners.