Furnace and heating repair in Orlean.

Thirty years of NOAA averages from a co-op station just southeast of Warrenton, 12 miles off, give January a mean low near 25. Close to a hundred nights a year dip to freezing or below, about five reach 10 or below, and roughly 13 days stay at or below 32 from morning to night. The County’s code has installers size heat for a 17 degree outdoor day. The village itself sits near 610 feet, three miles south-southwest of Thumb Run Mountain’s summit.

Most of that cold falls on a heat pump. The Census counts Orlean in Marshall’s ZIP, 20115, and there 64 percent of owners heat electrically; in farm country that usually means a heat pump, backed by resistance strips for the bitter nights. Below 17 the strips are supposed to help. If they’re carrying the house on a 40 degree afternoon, or the outdoor coil is caked white and never clears, something in the defrost or the controls has failed.

About one owner in five there burns propane from a yard tank, and a propane furnace is still electric at heart: no power, no igniter, no inducer fan, no blower. The nor’easter of March 2, 2018 left trees and wires down across northern Fauquier, with roughly 1,100 reports to the County’s 911 center. When the lines come back, a propane furnace that won’t fire has often lost its igniter, $240 to $410 to replace, or its control board to the surge, $550 to $1,180.

During the late January 2026 Arctic outbreak the Weather Service had extreme cold warnings up on the worst nights, and on February 1 the Hume weather station, four miles northwest, read a wind chill of minus 8. That’s the kind of night a squealing blower motor picks to quit for good, $670 to $2,400 to replace.