Furnace Installation in Pasco, WA
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Franklin County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat in Franklin County
Your furnace in Pasco runs from October through May. That's eight months a year, with winter nights averaging 28°F. A new furnace here needs to handle a long season, not just a few cold snaps.
Most homes in Franklin County heat with electricity. If you're installing a gas furnace, federal rules set the floor. Any non-weatherized gas furnace made since November 19, 2015 has to reach at least 80 percent AFUE. Power matters too. Washington saw 23 percent of households lose power for 24 hours or more in 2024, and the region has logged 14 winter storms and 25 damaging wind events over the past ten years. A furnace that depends on the grid is only as reliable as the grid is.
- 8 months
- October through May, your furnace is on duty
- 28°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Washington requires contractors to register with the state.
Registration means the business is on file with the state and carries the bond and insurance the state requires. It does not mean anyone tested the contractor's gas work or checked their record of jobs done well or badly. There is no exam behind the number, so the registration tells you the business exists and is on the hook financially, nothing more.
For a furnace installation, the check that matters happens at the local building office. Most cities and counties in Washington require a permit for this job and an inspection once it is done, and that inspection is what catches a bad gas connection or a venting mistake before it becomes dangerous. That permit and inspection, not the state registration, are what stand behind the work on your furnace.
Source: Washington State Legislature
- What size furnace does my house need?
- The right size comes from a load calculation, not a rule of thumb tied to square footage. A contractor works through your insulation, window area, ceiling height, and layout to find the heat loss for your specific house, then matches a furnace to that number. Sizing matters more here than in mild climates, since a house with 28°F winter nights and eight months of heating a year will run wrong if the furnace is too big or too small. Too large and it short cycles, wearing parts out early. Too small and it runs constantly without keeping up on the coldest nights.
- How do I know it's time to replace my furnace?
- Watch for rising repair calls, uneven heat between rooms, or a furnace that runs longer than it used to just to hold the same temperature. A cracked heat exchanger or a furnace that won't stay lit are clear signs to stop repairing and start replacing. Age matters too. A furnace pushed hard for eight months of heating every year wears faster than one that only runs a few months, so an older unit here has earned more hours than the same model somewhere milder. If your furnace is old enough that parts are getting hard to find, that's worth weighing against another repair.
- Is a high-efficiency furnace worth it?
- It depends on how long you plan to stay in the house and what you're replacing. Furnaces made since November 2015 already have to hit 80 percent AFUE at minimum, so the real choice is between that baseline and a high-efficiency model rated higher. With heat running eight months a year here, a more efficient furnace has more months to earn back the difference than it would in a place with a short winter. A contractor can walk through the options against your actual furnace and your house and price out what each one costs installed.