Furnace Installation in Brooklyn, NY
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Kings County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of heat, most of it on gas
Brooklyn homes need the furnace running from October through April, seven months of the year. Winter nights average 29°F, so the burner is cycling on and off most nights in that stretch. Most homes here heat with gas, 72.2 percent of them, which means a new furnace has to hold up to that kind of steady use.
A new non-weatherized gas furnace has to reach at least 80.0 percent AFUE by federal rule. Kings County has also seen 16 winter storms and 56 damaging wind events over the past ten years, and across New York, 11 percent of households lost power for 24 hours or more in 2024. A furnace that starts back up on its own once power returns matters here.
- 7 months
- October through April, your furnace is on duty
- 29°F
- the average winter night it heats against
- 72%
- of homes here heat with gas, so most furnaces here burn gas
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
A high-efficiency gas furnace would save about $110 a year to run in Kings County compared with a gas furnace.
Estimates for a typical Kings County home, from EIA household energy data, New York fuel prices and NOAA climate normals. Your home will differ.
- What size furnace does my house need?
- A contractor has to measure this with a load calculation, since it comes down to your square footage, your insulation, your windows, and how the house is laid out. A furnace that's too big will short cycle, turning on and off before it heats evenly. One that's too small will run constantly and still leave the place cold when it's 29 degrees outside. Don't go by the size of the old unit or a rule of thumb someone gives you over the phone. The only honest number comes from someone measuring your house.
- How do I know it's time to replace my furnace?
- If it's needing repairs more than once a season, replacing it usually makes more sense than continuing to fix it. Watch for uneven heat between rooms, a furnace that runs longer than it used to, or a yellow flame instead of blue. Heat is needed here from October through April, seven months a year, so a furnace that's struggling early in that stretch is only going to have more work ahead of it. A contractor can tell you whether what you're seeing is a repair or the end of the unit's life.
- Is a high-efficiency furnace worth it?
- It depends on how much your furnace runs and how long you plan to stay in the house. Since homes here need heat seven months of the year, a furnace logs a lot of hours, more than it would somewhere with a shorter winter. Every non-weatherized gas furnace made since November 2015 already has to hit at least 80 percent AFUE, so the real question is whether paying more up front for a unit rated above that makes sense for your situation. A contractor can walk through the options with you and what each one means for a house like yours.