Furnace Installation & Replacement in Brooklyn, NY

Furnace Installation Built Around Brooklyn Homes

A 96% condensing furnace vents through PVC out a side wall and makes condensate that needs a drain or a pump. An 80% furnace vents up the chimney, which may need a stainless liner once the old boiler or water heater stops sharing it. Which one is right depends on the house, the chimney and how long you plan to stay. We walk the basement in Bay Ridge or Sheepshead Bay and tell you which, with numbers. A lot of prewar houses in Flatbush and Bensonhurst still run on the original chimney with nothing inside it, and the 96% unit needs a condensate route, which in a finished basement means a pump and a line to the laundry drain.

Our Furnace Installation Process, Step by Step

1. 1

   Load calculation. We size the furnace in BTUs from the house, not from the old nameplate.

2. 2

   Venting and gas review. Chimney liner, sidewall vent routing, gas pipe sizing, combustion air.

3. 3

   Permits. DOB filings and inspections for the gas work, handled by us.

4. 4

   Removal. Old furnace disconnected, drained and hauled away.

5. 5

   Installation. New furnace set, plenum and return transitions fabricated, venting and condensate run, gas line connected and leak-tested, thermostat wired. Neutralizer and condensate pump added on condensing units where no floor drain exists.

6. 6

   Commissioning. Gas pressure set, temperature rise checked, combustion analyzed, blower speed matched to the ductwork.

Furnace Options That Fit Brooklyn Properties

80% AFUE single-stage. Lowest cost, chimney vented, fine for smaller houses.

96% AFUE two-stage. Quieter, steadier heat, lower gas bills, sidewall vented.

Modulating variable-speed. Best comfort and efficiency, the right pick for drafty prewar houses with uneven rooms.

Furnace plus AC coil. Replacing both at once as a matched system, with the coil set in the supply plenum now so nobody cuts into a new plenum next summer. See AC Installation & Replacement.

Heat pump with gas backup. A dual-fuel setup for homeowners moving off gas a step at a time. See Heat Pump Installation & Repair.

What Affects the Cost of Furnace Installation in Brooklyn

Efficiency and staging. A 96% modulating furnace costs more than an 80% single-stage up front and saves on every gas bill for 15 to 20 years.

Venting work. A chimney liner or a new sidewall vent is often the biggest variable.

Ductwork. Undersized returns or leaky trunks need Ductwork Installation & Repair or the new furnace will short cycle.

Gas line. Upsizing from the meter adds pipe and permit.

Removal and disposal. Old furnaces, some with asbestos tape on the ducts, handled and hauled correctly.

Permits and inspection. DOB fees are line items on the quote.

Local Conditions We Engineer Around in Brooklyn, NY

Unlined masonry chimneys. Common in prewar houses and the main reason orphaned water heaters backdraft after a furnace replacement.

Basements that flood. Furnaces set on raised pads with condensate pumps where water has been a problem.

Tight stairs and doorways. Equipment carried in by hand, not by forklift.

Gas meter capacity. Con Edison meters that cannot feed a new furnace, a range and a dryer at the same time.

Shared walls. Vent terminations placed to clear the neighbor's windows per code.

What to Expect When You Hire Brooklyn HVAC Company

A free quote with model numbers and a fixed price, permits pulled in our name, floors and stairs protected, the old furnace gone the same day, a commissioned system with a combustion report, and warranty registration done for you. Installation day is usually one day, start to finish.