A snow-covered front yard and wet driveway viewed through a residential window during an active snowstorm.

Furnace Installation in Chaska, MN

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

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An empty unfinished basement containing a forced-air furnace with overhead ductwork, exposed ceiling joists, and a single hanging light bulb.

Eight months of heat, and nights that drop to 9 degrees

Chaska needs a working furnace from October through May. That is eight months out of the year, and on winter nights the average low is 9°F. A new furnace here has to be sized and installed to hold a house steady through real cold, not just take the edge off.

Most furnaces in this area run on gas, and any non-weatherized gas furnace built since November 2015 has to reach at least 80 percent AFUE by federal rule. Carver County also sees its share of winter storms and high wind, so the installation itself, the venting, the electrical connection, the placement, matters as much as the unit itself.

8 months
October through May, your furnace is on duty
9°F
the average winter night it heats against
75%
of homes here heat with gas, so most furnaces here burn gas
80% AFUE
the federal minimum any new unit must meet
Isometric line illustration of a cutaway single-story house showing interior rooms with furniture, ceiling ductwork, a chimney flue, and a furnace unit outside the exterior wall.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

A gas furnace and sheet-metal air handler unit installed in an unfinished concrete basement.

A high-efficiency gas furnace would save about $110 a year to run in Carver County compared with a gas furnace.

  • A high-efficiency gas furnace$500 a year
  • A gas furnace$610 a year

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

Minnesota has no state license for HVAC contractors.

There is no license or registration behind the name on the truck. Minnesota does not test HVAC contractors or keep a record of who is qualified to install a furnace, so nothing about that name is checked or filed at the state level.

In most cities and counties, a furnace installation needs a permit from the local building office, with an inspection once the work is done, and that check includes the gas connection, which is the part of the job that has to be right. In Carver County, 75.4% of homes heat with gas, so that inspection is doing the work a license would do somewhere else.

Source: Minnesota Office of the Revisor of Statutes

What size furnace does my house need?
A contractor sizes it with a load calculation, not by matching the furnace you already have. That means measuring your square footage, insulation, windows, and ceiling height, then weighing all of it against how cold it gets here. With winter nights averaging 9°F, an undersized furnace will run constantly and still lose ground, while an oversized one will short cycle and wear out early. There's no way to give you a number without measuring the house.
How do I know it's time to replace my furnace?
The clearest sign is age combined with repair calls that keep coming back. Furnaces installed new today have to hit at least 80 percent AFUE, so if yours is old enough to predate that rule, it's burning more gas to make the same heat. Homes here need heat running from October through May, eight months of the year, so a furnace on its way out doesn't get much of a break to fail quietly. If a technician keeps replacing the same part, or the furnace can't hold temperature on a 9°F night, that's your answer.
Is a high-efficiency furnace worth it?
It depends on how much heat your house needs over a year, and here that's a lot. Heating season runs eight months, October through May, with winter nights averaging 9°F, so a furnace here works harder and longer than one in a milder climate. That's the setting where a higher AFUE rating matters most, since a furnace burning at 80 percent wastes more gas the more hours it runs. A contractor can walk through the actual AFUE ratings on models for your house and price it out from there.