The Census counts a heat pump as electric heat, and a bit over four in ten Reston owners heat with electricity. In 20191, the ZIP around Hunters Woods and South Lakes, it’s about six in ten, in a part of Reston where nearly half the homes went up in the 1970s and about a third are townhouses. In 20190 the figure falls to about three in ten, and in 20194 to about one in three.
A heat pump works every month of the year, so the one behind a 1970s cluster home has likely been replaced more than once. Its air handler, with the backup heat strips, sits in a closet, the attic or the basement, and getting the old one out of an attic or a tight closet is often the hard part.
Outside, Reston Association has its say. Its cluster guideline puts outdoor units against the house wall as a rule, and a screen RA asked for is meant to hide the unit without blocking service. A heat pump also drains meltwater each time it defrosts, and against a cluster wall that water can freeze on a shared walk, so we look at where it will run before the new unit is set.
In the gas homes of 20190 and 20194, a new heat pump can stand on the old condenser’s pad, carry the mild days and call on the gas furnace only when it’s bitter out, the pairing our dual fuel guide explains. In 20190’s condo buildings a heat pump is often the unit’s only heat, and the association decides where a new outdoor half goes.