Furnace Installation in Kennewick, WA
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Benton County will get in touch.
Tell us about the job
It takes about a minute.
Eight months of heat, and the power doesn't always stay on
Kennewick needs a furnace running from October through May. That's eight months out of the year, with winter nights averaging 28°F. A new furnace here has to hold up to a long season, not just a few cold snaps.
Most homes in this area heat with electricity, and the grid doesn't always cooperate. Washington saw 23% 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. If you're choosing between fuel types, that history is worth weighing. Any new gas furnace installed today also has to meet a federal minimum of 80 percent AFUE, so it's turning most of the fuel it burns into heat for your house.
- 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 puts the business on file with the state and requires it to carry a bond and insurance. Nobody tests the contractor's work to get that record, so it tells you the business exists and is covered, not that the state checked their gas or ductwork skills.
For a furnace install, the protection here comes from the local building office. Most cities and counties in Washington require a permit before the work starts and an inspection once it's done, and that inspection is what checks the gas line and the venting, the parts of the job that can hurt someone if they're wrong.
Source: Washington State Legislature
- What size furnace does my house need?
- The right size comes from a load calculation, not a rule of thumb based on square footage. A contractor measures your windows, insulation, ceiling height, and duct layout, then runs those numbers against local design temperatures to find the size that matches your house. Too big and it short cycles, heating fast then shutting off before the house evens out. Too small and it runs constantly through those 28°F winter nights and still can't keep up. Ask whoever quotes the job to show you the calculation, not just a number.
- How do I know it's time to replace my furnace?
- Watch for repairs that keep coming back, a heat exchanger that's cracked or corroded, or a furnace that can't keep the house warm on the coldest nights anymore. Age matters too. Furnaces built on or after November 19, 2015 are required to hit at least 80 percent AFUE, so anything older than that is likely running below today's minimum and burning more fuel to make the same heat. With homes here needing heat from October through May, a furnace on its way out shows itself fast once the cold settles in. If yours is cycling more, running longer, or throwing higher bills for the same comfort, have it looked at before it fails on a night when you need it most.
- Is a high-efficiency furnace worth it?
- It depends on how many months your furnace actually runs and what you're replacing. Homes here need heat eight months a year, October through May, so a furnace here works harder and longer than one in a milder climate, which is exactly the condition where higher efficiency pays back the most over time. A high-efficiency furnace also vents differently than a standard one, often through a side wall instead of a chimney, so the installation itself can look different. A contractor can walk through the options against your current setup and price out what fits your house.