Sioux City and Siouxland · IA · NE · SD
Furnace replacement and installation in Siouxland
A furnace is usually replaced for one of three reasons: a cracked heat exchanger, a repair that costs a large share of a new unit, or an old furnace that keeps failing in the same winter. A proper replacement starts with a load calculation for the house, not with the size printed on the old furnace.
Calls are answered 24 hours a day, 7 days a week.
Repair or replace: the questions that decide it
Is the heat exchanger cracked? A crack can let combustion gases into the airstream. On most furnaces the heat exchanger is the most expensive part, and a crack is the most common reason a technician recommends replacement.
How old is the furnace? The year is on the label inside the cabinet. A furnace from the 1990s with an 80% rating is in a different position from one installed in 2015.
How many calls this winter? A second or third breakdown in one heating season deserves more weight than the price of any single repair.
What the installer looks at
- The load of the house. Square footage alone does not size a furnace. Windows, insulation and air leakage do.
- The venting. A high-efficiency furnace vents through plastic pipe out a wall or the roof. An 80% furnace uses the existing metal flue, and an old masonry chimney may need a liner when the furnace beside it changes.
- Gas line and electrical. A larger or different furnace may need a bigger gas line or a new circuit.
- The ductwork. A new furnace on undersized ducts runs loud and short-cycles.
Heating fuel in this area
About 65% of homes in Sioux City heat with utility gas, according to Census estimates for 2020–2024. Farther out, the share on propane rises: in the rural ZIP codes around Salix, Lawton and Moville, 15% to 18% of homes heat with bottled or tank gas. A propane furnace needs its gas valve set up for propane, so say which fuel you have when you call.
Questions people ask
Should the new furnace be the same size as the old one?
Not automatically. Many older furnaces were oversized, and a house that has had new windows or insulation since needs less. A load calculation for the house settles it. Ask the installer whether one will be done.
Does a furnace replacement need a permit?
The rules differ by city and state. Sioux City issues trade permits to state-licensed mechanical contractors, and South Sioux City's permit application lists HVAC change-outs. Ask the installer who pulls the permit and whether the job will be inspected.
Can the air conditioner stay when the furnace is replaced?
Often, if it is fairly new. The indoor coil sits on top of the furnace, so the installer has to check that the old coil matches the new furnace's airflow. An AC close to the end of its life is usually quoted together with the furnace.
Describe the problem and the age of the system. The operator checks who is taking calls near you.
(888) 217-3739