Furnace replacement in Orlean.

The Census block group around Orlean, the village on Leeds Manor Road plus about 26 square miles of farms, counts 95 occupied homes heating with propane and just 12 on utility gas. So a furnace replacement here almost always means propane in, propane out. A new furnace normally leaves the factory set up for natural gas; before its first light the tech fits the propane conversion kit and sets the gas pressure to the rating plate.

Fauquier County sizes heating to a 17 degree winter day. Warrenton 3 SE, the closest station with thirty-year normals, averages a January low just under 25 degrees and roughly 98 nights a year at freezing or colder. Late January 2026 brought Extreme Cold Warnings on three of the coldest nights and, at the Hume station four miles northwest, a wind chill of 8 below on February 1. If your furnace ran nonstop that week and still lost ground, size the next one from this house’s heat loss, not the old label.

Keeping your cooling, around Orlean, often means keeping a heat pump. Electricity heats 306 of the block group’s 543 occupied homes, and a propane furnace under a heat pump’s coil only fires when the outdoor unit falls behind. Working part time, it can reach twenty with a clean cabinet and parts nobody stocks anymore. Read the date on its label before the next cold snap.

In the village, the National Register survey of the Orlean Historic District found houses from about 1795 into the 1950s, many with a stone chimney built on an outside wall. An older furnace may still vent into one. An outside chimney runs cold, drafts poorly and collects condensation, so a high-efficiency replacement usually vents through the wall in plastic pipe instead. Ask what will still use the chimney after that.