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Heating & Air Guides for Puget Sound Homes
Heat pumps, furnaces, AC, and indoor air quality explained for Puget Sound homeowners — what's normal, what's a warning sign, and what to do next.
How to use this hub
1. Learn
Start with our guides to understand the issue in plain language.
2. Evaluate
Compare options, tradeoffs, and cost drivers before requesting service.
3. Act
Book with context and ask sharper questions during your estimate.
How Long Does an HVAC System Last in the PNW?
Most Puget Sound furnaces last 8–10 years, central air conditioners 12–15 years, and heat pumps 15–20 years when maintained — but marine hum…
Open →What Does a Heat Pump Cost to Run in Seattle?
Running a modern cold-climate heat pump in Seattle typically costs less per year than heating with an old gas furnace when the system is siz…
Open →Why Is My Furnace Short Cycling?
Furnace short cycling means the system turns on and off repeatedly without reaching your set temperature — most often caused by a dirty filt…
Open →When Should I Repair vs Replace My AC in Washington?
Replace your central AC when it's over 12–15 years old, uses phased-out R-22 refrigerant, needs a repair costing more than about a third of …
Open →What Is a Ductless Mini-Split and When Does It Make Sense?
A ductless mini-split is a heat pump system with an outdoor compressor and one or more indoor wall or ceiling units — no ductwork required —…
Open →Indoor Air Quality Basics for Puget Sound Homes
Indoor air quality in Puget Sound homes is shaped by pollen-heavy springs, marine humidity, older insulation, and periodic summer wildfire s…
Open →How Often Does a Furnace Need a Tune-Up in Washington?
Puget Sound furnaces should be professionally tuned once a year — ideally in early fall before heating season — to maintain efficiency, catc…
Open →Heat Pump Noises: Normal vs Problem
Heat pumps in the Puget Sound normally hum during operation and may whoosh, click, or briefly run louder during defrost cycles in cold weath…
Open →Washington HVAC Rebates Explained
Puget Sound homeowners upgrading to efficient heat pumps, ductless systems, or hybrid water heaters may qualify for utility rebates (PSE and…
Open →Imbalanced Heating & Cooling in Homes — and a Solution for It
Imbalanced heating and cooling — one floor roasting while another freezes — happens because heat stratifies upward, single-speed systems bla…
Open →Not All Wall Heaters Are Created Equal
Thousands of Puget Sound homes and condos still heat room by room with electric wall heat — but the options are nowhere near equal. Baseboar…
Open →How Do Heat Pumps Work?
A heat pump doesn't make heat — it moves it. In winter, refrigerant in the outdoor coil gets colder than the outside air, soaks up the heat …
Open →How Does Ductwork Work in Your Home?
Ductwork is a loop, not a one-way pipe. Supply ducts deliver conditioned air to every room's registers, and return ducts pull the same amoun…
Open →Which Systems Fit Your Seattle Home?
The right system depends on the house more than the brochure. A pre-1940 Craftsman with plaster walls and no ducts, a 1960s rambler on elect…
Open →Single-Stage vs Two-Stage vs Variable-Speed Furnaces, Explained
“Staging” is how many sizes of “on” a furnace has. A single-stage furnace is all-or-nothing — 100% fire or off. A two-stage furnace runs at …
Open →Condensing vs Non-Condensing Furnaces: What 95% vs 80% Really Means
An 80% (non-condensing) furnace sends 20 cents of every gas dollar up the flue. A condensing furnace adds a second heat exchanger that wring…
Open →Heat Pump vs Air Conditioner: What's the Difference?
In cooling mode, a heat pump and an air conditioner are the same machine — same parts, same process, same summer performance. The difference…
Open →Furnace vs Air Handler: Which Indoor Unit Does Your System Need?
A furnace and an air handler are both the indoor half of a ducted HVAC system — the metal cabinet that moves air through your home. The diff…
Open →Ducted vs Ductless vs Mixed HVAC: Which Layout Fits Your Home?
Ducted systems move heated and cooled air through hidden ductwork to every room from one indoor unit. Ductless (mini-split) systems skip the…
Open →Do I Need to Clean My Ducts? What a Professional Cleaning Actually Does
Your ducts are the lungs of your home — every breath of heated or cooled air travels through them, past whatever has settled there since the…
Open →Does a New Heat Pump Add Value to Your Home?
Yes — research consistently finds homes with heat pumps sell for more, though the size of the premium varies widely. A study across 23 state…
Open →Seattle City Light Rebates & Incentives for Heat Pumps, Water Heaters & Electrical Upgrades (2026)
If you live in Seattle City Light's service territory, you can combine several incentives in 2026 to lower the cost of upgrading to electric…
Open →Why homeowners trust these guides
- We answer the questions homeowners actually ask — in plain English.
- Accurate, real-world advice on HVAC, plumbing, and electrical work.
- Written for Puget Sound homes — our weather, utilities, and older houses.
- Kept up to date, with clear next steps when you're ready to act.