Furnace Installation in Moriarty, NM
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Torrance County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, down to 21 degrees
Moriarty homes need the furnace running from October through May. That's eight months of the year the system has to work, with winter nights averaging 21°F. A furnace here isn't idling most of the time. It's putting in real hours, most of that season.
Any new non-weatherized gas furnace installed now has to hit at least 80 percent AFUE, the federal minimum for units built since November 2015. Power outages are worth planning around too. Across New Mexico, 13% of households lost power for 24 hours or more in 2024, and Torrance County has logged 69 winter storms and 220 damaging wind events over the past ten years. When the power drops on a cold night, a furnace that depends on it stops putting out heat until it's back.
- 8 months
- October through May, your furnace is on duty
- 21°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
A high-efficiency gas furnace would save about $60 a year to run in Torrance County compared with a gas furnace.
Estimates for a typical Torrance County home, from EIA household energy data, New Mexico fuel prices and NOAA climate normals. Your home will differ.
New Mexico requires HVAC contractors to hold a state license.
New Mexico's Construction Industries Division licenses HVAC contractors. It tests the contractor and keeps a record of them, and that license covers the contractor, not this one job. It follows them to every furnace, every install, everywhere in the state.
For this job, the license is what stands behind the person doing the work. In Torrance County, as in most places, a furnace installation also needs a permit from the local building office and an inspection once the work is done. That permit and inspection are separate from the license and happen alongside it. In Torrance County, 41.5% of homes heat with gas, so a furnace going in correctly is not a small thing here.
Source: New Mexico Regulation and Licensing Department
- What size furnace does my house need?
- The right size comes from a load calculation, not a rule of thumb like square footage alone. A contractor works through your walls, windows, insulation and layout to find the number that fits your house. Too big and the furnace short cycles, wearing itself out faster. Too small and it runs constantly and still can't keep up on the coldest nights, and here that matters since winter lows average 21°F from December through February.
- How do I know it's time to replace my furnace?
- Watch for repairs that keep coming back, uneven heat between rooms, or a furnace on its second decade of hard use. Homes here need heat from October through May, eight months a year, so a furnace that's struggling has little time off between seasons to make up for it. If a contractor is telling you the same part is wearing out again, replacement usually costs less over time than another repair. A furnace that can't hold up through a winter with lows around 21°F is one you can't count on when it counts most.
- Is a high-efficiency furnace worth it?
- It depends on how much you run the furnace and what you're running now. Any furnace installed new today has to meet at least 80.0 percent AFUE by law, and higher-efficiency models go well beyond that minimum. With heat needed from October through May here, those efficiency gains get used more months out of the year than they would somewhere with a shorter winter. A contractor can walk you through the options for your house and tell you what makes sense given how you use heat.