Boiler repair and replacement in Marshall.

Marshall is on the short list of towns where we’ve repaired and replaced boilers. Electricity heats roughly two in three of the 2,109 owner homes in ZIP 20115, propane one in five, and utility gas next to none of them, which is why the boilers we meet in Marshall burn propane from a tank out back.

The village’s oldest houses are on West Main Street: the County plan lists stone and brick buildings there from the early 1800s and I-houses from 1900 to 1920. A boiler in one of those often sits in a cellar, and with seasonal high water tables 10 to 40 inches down in the local soils, a damp cellar can rust a cast iron boiler from the base up. Brick and stone walls also make a new vent opening a bigger job than it sounds, part of why a cast iron boiler often stays on its chimney in those houses.

About one in five owner homes here is older than 1960 and more than four in ten are older than 1980, though the typical one went up in 1986. A condensing boiler moves the vent off the old chimney and out the wall in plastic pipe, and runs $12,782 to $16,500 installed; keeping cast iron on the chimney is the cheaper path. The early 1800s buildings predate central heat entirely, so whatever heats them now was added later, often with piping that runs a long way from the boiler to the far rooms.

Fauquier County wants a permit for any fuel-fired appliance replacement, even in the same spot, and the Department of Community Development in Warrenton issues trade permits over the counter the day the application comes in, with no plans needed. Close to three in ten homes are rented here, which puts the boiler on the landlord’s list rather than the tenant’s.