Furnace and AC replacement in Middleburg.

Count what’s in the house first. Across 20117, 582 of the 927 owner homes heat with electricity, usually with an air handler and backup strips where a furnace would sit, so the matching swap there is a heat pump system, $8,499 to $21,650 installed. A furnace and air conditioner together is the job in the 187 propane houses and the 41 on piped gas.

Winter is the bigger load out here. NOAA’s normals from the Purcellville co-op, the closest station at Middleburg’s height, run to 4,942 heating degree days a year and only 1,050 cooling ones, though about 30 afternoons a year still reach 90. The furnace half is sized from the winter heat loss, the cooling half from the summer gain, and both from measurements.

Storms end a lot of outdoor units here. On June 21, 2021, gusts estimated near 69 mph blew down numerous trees around Middleburg, some on Washington Street near Chestnut Street, and on June 16, 2016, golf-ball hail fell less than a mile northwest of town. A limb through the fan guard or a coil flattened by hail on a condenser near twenty usually decides it, and if the furnace is as old, price the pair.

Inside the Historic District the condenser is part of the streetscape. The Town’s design guidelines ask for heating and cooling equipment in the least visible spot on or next to the house, enclosed in a screen whose material and color suit it, and discourage rooftop units on front roofs. A new condenser is seldom the same shape as the old one, and any change in form a public street can see needs a Certificate of Appropriateness, filed with scale drawings two weeks before the committee’s monthly meeting.