Heat pumps in Franklin Park

What a heat pump actually is

A heat pump does not create heat by burning anything. It moves heat from one place to another, using the same refrigeration cycle as your air conditioner — which is why a heat pump is an air conditioner that can also run in reverse. In summer it takes heat out of your house and rejects it outside. In winter it takes heat out of the outdoor air, even cold outdoor air, and brings it inside.

That is why efficiency figures for heat pumps look implausible at first glance. Moving existing heat takes less energy than generating heat, so a heat pump can deliver more heat energy into the house than the electrical energy it consumes. It is not a violation of anything; it is a pump, not a furnace.

The honest version of the cold-weather question

As outdoor temperature drops, there is less heat available to move, so the heat pump’s output falls at exactly the point your house needs the most. Modern cold-climate equipment holds capacity far better than older units did, but the curve still goes the same direction.

Every well-designed installation therefore answers one question explicitly: what covers the house on the coldest nights of a Western Pennsylvania winter? The two normal answers are electric resistance backup heat, which is straightforward but expensive to run, or a gas furnace in a dual-fuel arrangement, which is why dual fuel is so common in a region where most homes already have gas service and a furnace sitting in the basement.

What to get right at specification

Cold-climate capability is a specification, not a slogan

“Cold climate” is used loosely in sales conversations. What matters is the published performance data: how much heat the unit still delivers at low outdoor temperatures, and how efficiently it does so. Ask to see capacity at a genuinely cold design condition rather than at the mild rating point, and ask what the design assumption is for your house on the coldest expected night.

Decide what covers the coldest hours

Two approaches dominate. Electric resistance backup heat is simple and universally available, but it is the most expensive way to make heat, and a system that leans on it more than intended produces alarming winter electricity bills. A gas furnace as backup — dual fuel — avoids that, which is a large part of why it is the common configuration in this area.

On a dual-fuel system, the changeover temperature is a real setting that someone chooses. Set it too high and you barely use the heat pump; too low and you run it in conditions where the furnace would be cheaper. Ask what yours is set to and on what basis.

Placement of the outdoor unit

A heat pump runs through the winter, produces condensate as it defrosts, and needs that water to drain away rather than build into a block of ice around its base. It should sit high enough to stay clear of accumulated snow, away from where roof runoff or sliding snow will land on it, and with clear airflow around it. In a snowy North Hills winter this detail matters far more than it does for an air conditioner that sits idle from October to May.

Ductwork, again

Because a heat pump delivers a larger volume of cooler air than a furnace does, duct systems that were marginal with a furnace can become genuinely inadequate. This is worth assessing before purchase, not after the first cold snap.

Living with one

Heat pumps reward being left alone. They are most efficient running longer, steadier cycles, so large thermostat setbacks work against them in a way they do not with a furnace: recovering several degrees can pull in expensive backup heat and give back more than the setback saved. Most people settle on modest setbacks or none at all.

The other adjustment is simply what “working” feels like. Longer run times and cooler supply air are the system operating correctly. Homeowners who expect furnace behaviour sometimes conclude something is wrong when nothing is — and sometimes respond by raising the thermostat repeatedly, which brings on backup heat and creates the high bill they feared.