A snow-laden tree branch with dripping icicles hangs in the foreground during a winter storm, with a snow-covered residential house visible in the background.

Furnace Installation in Aberdeen, SD

A new furnace here will run from September through May every year. Tell us about the house, and a licensed contractor who covers Brown County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
A gray forced-air furnace with metal ductwork stands in an unfinished basement with exposed wooden joists, concrete walls, and a single hanging light bulb.

Nine months of heat in Aberdeen

Your furnace has to cover September through May here, nine months of the year. Winter nights average 6°F, so once it starts running in the fall it does not let up until spring.

Aberdeen has logged 42 winter storms and 187 damaging wind events over the past ten years. A new furnace needs to be sized and installed to hold up through that stretch, not just get the house through a mild cold spell. Any non-weatherized gas furnace built since November 2015 has to reach at least 80 percent AFUE, and almost half the homes here already heat with gas.

9 months
September through May, your furnace is on duty
6°F
the average winter night it heats against
80% AFUE
the federal minimum any new unit must meet
Isometric grayscale illustration of a cutaway single-story house showing interior rooms with furniture, a furnace unit connected to ductwork and a tall vertical flue pipe extending above the roof.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

An unfinished basement featuring concrete block walls, exposed floor joists, a bare concrete floor, and a forced-air furnace with a large metal exhaust duct in the corner.

A high-efficiency gas furnace would save about $80 a year to run in Brown County compared with a gas furnace.

  • A high-efficiency gas furnace$410 a year
  • A gas furnace$490 a year

Estimates for a typical Brown County home, from EIA household energy data, South Dakota fuel prices and NOAA climate normals. Your home will differ.

In South Dakota, HVAC licensing for homes is left to the cities and towns.

Brown County itself does not run a licensing test for HVAC contractors. Whatever rule applies comes from the city or town the house sits in, since South Dakota leaves that decision to local government rather than setting one statewide.

For a furnace installation, the protection here comes from the local building office rather than a license. Most cities and counties require a permit for a furnace replacement, and an inspection once the work is done, and that inspection is what checks the gas connection and venting, the part of the job where a mistake is dangerous. Close to half the homes in Brown County heat with gas, so that inspection is doing real work when it happens.

Source: South Dakota Legislature

What size furnace does my house need?
A contractor has to work that out with a load calculation, not a chart based on square footage. That calculation looks at your insulation, your windows, your ceiling height, and how the place is laid out, then weighs all of that against how cold it gets here. Winter nights in Aberdeen average 6°F, so undersized is not something you want to guess wrong on. A furnace that is too big cycles on and off too fast and wears out sooner. Too small, and it runs flat out all night and still falls behind. Ask the contractor to walk you through the calculation, not just hand you a number.
How do I know it's time to replace my furnace?
Age is the first thing to look at, along with how often it needs a repair call. If a technician has been out more than once this winter for the same problem, that is usually the furnace telling you it is done, not a run of bad luck. Watch too for longer run times, rooms that used to feel warm and now do not, and a heating bill that climbed without a reason. Aberdeen homes need heat from September through May, nine months of the year, so a furnace here does not get much rest, and that matters when you are deciding whether to fix it again or replace it.
Is a high-efficiency furnace worth it?
Every new gas furnace sold today has to meet a minimum efficiency, so you are not choosing between efficient and inefficient. You are choosing how much higher above that minimum to go. In a place where the heat runs nine months a year and winter nights average 6°F, a furnace spends a lot of hours working, and the difference between efficiency levels shows up over that many hours more than it would somewhere milder. Almost half the homes in Brown County heat with gas, so this is a real question for a lot of people here, not a niche one. A contractor can lay out the efficiency options for your specific furnace and house and let you weigh the difference yourself.