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A contractor sizing a furnace for Las Animas County has to account for what the burner and heat exchanger are actually asked to carry. Homes in Las Animas County, CO run heat about eight months a year, from October through May. Cycling that long, the ignition system, the heat exchanger, and the blower all accumulate wear that compounds when the original install was undersized or the ductwork was poorly sealed. A unit that is correctly sized and properly commissioned from the start carries that load without the short-cycling that accelerates component failure. Contractors pull load calculations specific to the house before they quote, because a number pulled from a catalog without measuring the structure leaves the homeowner with a system that struggles from its first season.

Ductwork sized and routed for a long-replaced furnace does not automatically carry a new one. A contractor installing a furnace in Las Animas County has to assess what the existing trunk lines and branch runs can actually handle before the new unit goes in, because a system spec'd for today's equipment and a duct layout built around something older will fight each other at the registers. Half the homes in Las Animas County, Colorado were built in 1972 or earlier (2020-2024 ACS 5-year). That history shows up in houses where the ductwork has been patched around two or three equipment changes, and where the routing reflects the logic of whatever came first.
What Gets Installed With a New Furnace

The furnace itself sits in a utility room, basement, or closet and is the unit a homeowner sees when they look at the system. Inside the cabinet, a heat exchanger and a burner assembly do the core work of producing heated air. A blower motor, housed in the same cabinet, pushes that air out into the home.
A flue pipe runs from the furnace to an exterior wall or through the roof, carrying combustion gases out of the house. Alongside the furnace, a thermostat mounts on an interior wall and is the control point a homeowner touches to set temperatures. A gas line connects to the burner, and a condensate drain handles moisture on high-efficiency units.
The drawing shows a representative layout, and a licensed contractor determines exactly what applies to this house.
Get matched in Las Animas CountyLas Animas County, by the record
390 severe weather events were recorded in Las Animas County, Colorado between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Las Animas County, Colorado were built in 1972 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesLas Animas County, Colorado holds 8,170 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.6% of the occupied homes in Las Animas County, Colorado (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Furnace Installation in Las Animas County, Colorado4 sourced rules and standards
What the Installation Looks Like
Non-weatherized gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized oil-fired furnaces manufactured on or after November 19, 2015 must reach 83.0 percent AFUE.
Mobile home gas furnaces manufactured on or after November 19, 2015 must reach 80.0 percent AFUE.
Non-weatherized gas furnaces manufactured on or after December 18, 2028 must reach 95.0 percent AFUE, up from the 80.0 percent minimum that applies to units manufactured before that date.
Severe Weather Events in Las Animas County
Las Animas County's climate puts real stress on heating equipment, and that stress compounds over time. A furnace sized and installed for local conditions handles that load differently than one specified for somewhere else.
390 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.
