PECO customers: check peco.com for current heat pump rebates.
The rowhome core of Philadelphia largely heats with gas, but ring the city and the oil tanks appear: the older Delaware County boroughs, Drexel Hill, Havertown, Upper Darby's early blocks, the prewar corners of Mount Airy and Germantown, and scattered stock out through Media and West Chester. For those households, heating oil is usually the biggest utility line of the year, and the heat pump question is a budget question before it is anything else. Here is the arithmetic for 2026, run honestly for both oil and gas households, because the two answers are not the same.
What Oil Actually Costs Here
A typical oil-heated house in this region burns 600 to 900 gallons a winter.
Then come the costs that never appear on a receipt. The tank is a liability with an expiration date; a failing buried tank in a Havertown yard is a remediation project. And the system heats only; every summer still needs its own cooling.
What the Heat Pump Side Costs
A modern cold-climate heat pump moves heat rather than making it, delivering two and a half to three units of heat per unit of electricity across a Philadelphia winter, and holding capacity at the city's the coldest night.
| Annual cost | Oil system | Cold-climate heat pump |
|---|---|---|
| Cooling | Separate AC or window units | Included, same machine |
The cooling side is half the story in a Philadelphia summer. The same machine that retires the oil burner also retires the window units, and it dehumidifies properly while doing it.
A Worked Delco Example
Against a conversion cost at the price on your written quote, banded honestly in our installation cost guide, the fuel swing alone repays the project in seven to ten years, faster if the old AC was due for replacement anyway. And unlike a rebate, the swing repeats every winter the house stands.
The Honest Gas Paragraph
Most of the rowhome city burns gas, and gas households deserve the unvarnished version: the fuel math is much closer. Gas is cheap per unit of heat, and a sound gas boiler in a Fishtown rowhome is not an emergency to replace. The strong gas-household cases are specific: the air conditioner is dying anyway, so one machine replaces two systems; the house has no ducts and window units are the summer plan, where ductless heating-and-cooling wins on comfort alone; or a small party-walled rowhome's load is so modest that the whole conversion is cheap. What no honest bidder claims for a gas house is that fuel savings alone repay the project the way they do for oil. Usually they do not, and a pitch that says otherwise is selling.
The Volatility Dividend
One more oil cost hides in the delivery schedule: unpredictability. Oil prices swing with world events, 30 percent moves between deliveries happen, and budgeting around them is guesswork. Electric rates move too, but through regulated filings in small steps. Converted households consistently report the same surprise: the savings were expected, but the flat, predictable monthly bill was the thing they would not trade back.
Rebates, Kept in Their Place
For an oil household none of this changes the verdict, because the operating swing is several times any rebate; it just means the project should be priced to stand without one, and vetted through the questions in our contractor guide.
What Electric Baseboard Households Should Borrow From This Page
A smaller slice of the region's stock, apartments over storefronts, some postwar infill, heats with electric resistance baseboard, and those households get the cleanest math of all. Baseboard turns one unit of electricity into one unit of heat; a heat pump delivers two and a half to three for the same draw. The winter heating portion of the electric bill drops by more than half, no tank, no deliveries, no combustion. For baseboard households the conversion rarely needs a spreadsheet, just a correctly sized quote.
Timing the Conversion
Oil households hold one scheduling advantage worth using: the decision can be made before the emergency. An oil burner past fifteen years is a known quantity with a known end. Collect quotes in the shoulder season, spring or early fall, while the old system still runs; contractors quote hungrier then, and nobody negotiates well on a cold morning with a dead burner. Some households split the difference deliberately, installing the heat pump in October and keeping the oil system as first-winter backup, then retiring the tank in April after the heat pump has proven the season.
The Radiator Question
Most oil homes here distribute through radiators, and no, they do not have to come out. The standard conversion runs ductless heads through the living space and leaves the radiators in place, silent. Plenty of households keep the oil system intact through the first winter as a security blanket, watch the heat pump carry the season on a cold night and below, and schedule the tank removal in spring, unhurried.
The last word belongs to the tank. Every oil conversion in this region ends the same way: a truck arrives, pumps out the remainder, and hauls away the steel box that dictated the household budget for decades. Homeowners describe the feeling in surprisingly similar terms, and none of them mention the rebate.
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