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A contractor quoting a furnace installation in Titus County works from the house first: its square footage, its insulation, how it leaks heat. 60 severe weather events were recorded in Titus County, Texas between 2015 and 2024. At that rate, severe weather is an occasional reality rather than a constant grind, so the sizing decision rests on the building's own thermal load, not on bracing for repeated storm punishment. A contractor who skips the load calculation and pulls a unit off the shelf is doing the homeowner a disservice that the weather record here does nothing to excuse.
Ductwork laid down for an older furnace was sized around that furnace's airflow, and a new unit with different static pressure requirements does not automatically inherit a clean fit. Half the homes in Titus County, Texas were built in 1985 or earlier (2020-2024 ACS 5-year). That gap between what was built into the house and what a contractor is now installing is where most of the real work on a furnace job in this county lives. If the existing duct system cannot carry the new unit's output without restriction, the electrical gets priced and scheduled before the sheet metal does.
What Gets Installed With a New Furnace
The furnace itself sits in a utility room, basement, or closet and is the unit a homeowner is most likely to recognize on sight. Inside it, a heat exchanger and a burner assembly work together to produce warm air, while a blower motor pushes that air out into the house.
A flue pipe runs from the furnace to an exterior wall or roofline and carries combustion gases out of the home. Alongside the furnace, a thermostat mounts on an interior wall and serves as the control point, telling the system when to run and when to stop.
The drawing shows a typical layout, and a licensed contractor determines exactly what applies to your house and its existing setup.
Find a contractor in Titus CountyTitus County, by the numbers
60 severe weather events were recorded in Titus County, Texas 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 Titus County, Texas were built in 1985 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesTitus County, Texas holds 12,146 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 70.6% of the occupied homes in Titus County, Texas (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesFurnace Installation Rules & Codes for Titus County, Texas5 sourced standards and regulations
What the Installation Actually 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.
Licensing and Legal Requirements in Titus County, Texas
In Texas a person may not engage in air conditioning and refrigeration contracting unless that person holds a license issued under the state air conditioning and refrigeration contractor law.
Severe Weather in Titus County
Weather puts a measurable load on heating and cooling equipment, and that load is shaped by what a specific county actually experiences. A furnace sized and installed for local conditions holds up differently than one specified from a generic blueprint.
60 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.