Furnace Installation in Centreville, MD
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Queen Anne's County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, and the power doesn't always hold
In Centreville, furnaces run October through April. That's seven months of the year, with winter nights averaging 28°F from December through February. A new furnace here needs to hold up to a long season, not just a few cold snaps.
Most homes in the area heat with electricity, and the grid doesn't always cooperate. Maryland saw 11% of households lose power for 24 hours or more in 2024, and the region has logged 9 winter storms and 104 damaging wind events over the past ten years. If you're installing a gas furnace, federal rules require any non-weatherized model made after November 2015 to reach at least 80% AFUE.
- 7 months
- October through April, your furnace is on duty
- 28°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Maryland requires HVAC contractors to hold a state license.
The license comes from the Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration Contractors, and the state tested the contractor before granting it. That license belongs to the contractor, not to any one job, so it tells you this person or business met the state's standard, not that this state signed off on your furnace specifically.
For that, Queen Anne's County still matters. In most cities and counties, installing a furnace needs a permit from the local building office, and an inspector checks the work once it's done. That inspection is what confirms the gas connections and the venting are sound, separate from whatever the state license already tells you about the contractor.
Sources: Maryland General Assembly · Maryland Department of Labor
- What size furnace does my house need?
- There's no single number that fits every home. A contractor works this out with a load calculation, which weighs your square footage against your insulation, window count, ceiling height, and how the house is laid out. Guessing on size backfires either way. Too small and it runs constantly without keeping up on the coldest nights. Too big and it short cycles, heating in bursts that leave rooms uneven and wear the furnace out faster. This is worth getting right rather than sizing off the old unit or a rule of thumb.
- How do I know it's time to replace my furnace?
- Watch for rooms that won't hold an even temperature, a furnace that cycles on and off more than it used to, or repair calls that are getting more frequent. Age matters too. Furnaces that run 7 months a year here, October through April, put in more hours than ones in milder places, and that adds up over the years. If yours is old enough that parts are getting hard to find, or a repair would cost a real fraction of a new furnace, replacement usually makes more sense than another fix. A contractor can look at the specific unit and tell you which side of that line you're on.
- Is a high-efficiency furnace worth it?
- Any furnace made since November 2015 already has to hit at least 80 percent AFUE, so the question is really whether it's worth going higher than that. In a place where the furnace runs from October through April with winter lows averaging 28°F, it's working hard enough that the efficiency difference shows up more than it would somewhere with a shorter, milder heating season. High-efficiency models also cost more upfront and some use different venting, so a contractor can walk you through what fits your house and what the actual difference in AFUE would mean for you.