Furnace Installation in Bay City, MI
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Bay County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, on nights that drop to 18 degrees
Bay City needs its furnace from October through May. That's most of the year, and on winter nights that average 18°F, a furnace already carrying that long a season has to keep working through the coldest stretch too. Most homes here heat with gas, so that furnace has to hold up night after night without much of a break.
A new gas furnace built today has to reach at least 80 percent AFUE, that's federal law for non-weatherized models. Beyond that minimum, a furnace here is also sitting in a place that sees real winter storms and damaging wind, and where plenty of Michigan households have lost power for a full day or more. What goes into the install, and how the furnace is set up to handle a power interruption, matters as much as the unit itself.
- 8 months
- October through May, your furnace is on duty
- 18°F
- the average winter night it heats against
- 78%
- 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 $130 a year to run in Bay County compared with a gas furnace.
Estimates for a typical Bay County home, from EIA household energy data, Michigan fuel prices and NOAA climate normals. Your home will differ.
Michigan requires HVAC contractors to hold a state license.
That license belongs to the contractor, not to this one job. It covers the business itself, and Michigan's Board of Mechanical Rules is the body behind it, testing and keeping records on the contractors who hold it.
For a furnace installation, that license is what stands behind the work, but it is not the only check on this job. Most cities and counties in Michigan require a permit before a furnace is replaced, along with an inspection once the work is done. In Bay County, 78% of homes heat with gas, so that permit and inspection apply to most furnace installations here.
Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs
- What size furnace does my house need?
- The right size comes from a load calculation, not a guess based on square footage. A contractor measures your walls, windows, insulation and ceiling height and runs the numbers to find out how much heat your house actually loses on a cold night. A furnace that is too big cycles on and off too often, and one that is too small runs constantly and still can't keep up when it drops to 18°F outside. There is no shortcut that gets this right for every house, so have a contractor calculate it for yours.
- How do I know it's time to replace my furnace?
- Watch for a furnace that struggles to keep the house warm, cycles on and off more than it used to, or needs a repair call more than once a season. Rising gas bills without a change in habits can also mean the heat exchanger or burners are losing efficiency. An older furnace works harder to do the same job it once did easily, and with heat needed here from October through May, a failure in the middle of winter is worse than one anywhere else. If yours is showing more than one of these signs, get it looked at before the cold nights test it.
- Is a high-efficiency furnace worth it?
- It depends on how much you heat and how long you plan to stay in the house. Homes here need heat eight months of the year, from October through May, with winter nights averaging 18°F, so a furnace here runs far more hours than one in a milder climate. Every new non-weatherized gas furnace sold today has to meet at least 80 percent AFUE, but high-efficiency models go higher than that, meaning less of the gas you burn is wasted out the vent. A contractor can walk you through the efficiency ratings available and price out what fits your house and budget.