Utah HVAC Pros
A snow-covered two-story house photographed at night during a snowstorm, with a single illuminated window visible on the front façade.

Furnace Installation in Logan, UT

A new furnace here will run from September through June every year. Tell us about the house, and a licensed contractor who covers Cache 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 ductwork stands in an unfinished concrete basement surrounded by storage items and clutter.

Ten months of heat a year in Logan

Furnaces here run from September through June. Winter nights average 17°F, and most homes in Logan heat with gas. That is a long season and a lot of cold nights for a furnace to work through without a break.

A new furnace installed here has to be sized for those lows, not just for a mild fall day. Any non-weatherized gas furnace built new has to reach at least 80 percent AFUE, so that efficiency floor is already built into what a contractor can install.

10 months
September through June, your furnace is on duty
17°F
the average winter night it heats against
81%
of homes here heat with gas, so most furnaces here burn gas
80% AFUE
the federal minimum any new unit must meet
Isometric cutaway illustration of a single-story house showing interior rooms with a dark furnace unit, connected ductwork, a vertical flue pipe through the roof, and simple furniture, on a white background.
Your furnace works hardest from November through April.

NOAA nClimDiv, 1991–2020 normals

An empty unfinished basement containing a forced-air furnace with overhead ductwork, exposed ceiling joists, and a single hanging light bulb.

A high-efficiency gas furnace would save about $120 a year to run in Cache County compared with a gas furnace.

  • A high-efficiency gas furnace$560 a year
  • A gas furnace$680 a year

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

Utah requires HVAC contractors to hold a state license.

The Division of Professional Licensing tests and records the contractor, not each job, so the license tells you the person doing the work has been checked, not that this particular install was. Utah does allow work under $7,000 to go ahead without a licensed contractor, though a furnace installation is the kind of job that tends to run above that line.

Most cities and counties, including those in Cache County, require a permit for a furnace replacement and an inspection once the work is done. That inspection is separate from the state license and happens after the furnace is in place. Most homes in Cache County heat with gas, so that check is a real part of what happens here, not a formality.

Sources: Utah State Legislature · Utah Department of Commerce

What size furnace does my house need?
The right size depends on your home's square footage, insulation, window count, and layout, so there is no single number that works for every house. A contractor works this out with a load calculation, not a chart based on floor space alone. This matters more here than in milder places, since winter lows average 17°F and homes need heat from September through June. A furnace that is too small will run constantly and still not keep up on the coldest nights. One that is too large will cycle on and off too often, which wears out parts faster and leaves rooms uneven.
How do I know it's time to replace my furnace?
Watch for uneven heat between rooms, a furnace that cycles on and off more than it used to, or a jump in your gas bill with no other explanation. Age matters too. An older furnace is more likely to have a cracked heat exchanger or a failing part that costs more to fix than replace. Homes here need heat from September through June, so a breakdown in the middle of that stretch is not something to wait out. A contractor can check the heat exchanger and the overall condition to tell you whether repair still makes sense.
Is a high-efficiency furnace worth it?
It depends on how much you run your furnace and what you're replacing. Since 2015, every new non-weatherized gas furnace has to reach at least 80 percent AFUE, so even a standard model wastes less fuel than older units built before that rule. A high-efficiency furnace gets more heat out of the same amount of gas than one built to that minimum. With heat needed from September through June here and most homes in the area heating with gas, a furnace runs for most of the year, which is where that difference in efficiency adds up. A contractor can walk through the options and what each one means for your specific house.