Big HVAC decisions, worked honestly
Every guide here shows the trade-offs, the sourced Seattle-area cost context, and the failure modes — so you can pressure-test any quote, including ours. No 'act now' countdown timers.
Heating
Should I repair my furnace or replace it?
This is the repair-or-replace decision framework — not the furnace-vs-heat-pump comparison table. Under 10 years old: repair, almost always. Past 15: put major-repair money toward replacement. In between, weigh four inputs — age, what failed, the efficiency you'd gain, and how long you'll stay in the home. A cracked heat exchanger at any advanced age is the classic replacement trigger. Seattle's long October–May heating season and rising PSE gas rates tip borderline cases toward replacement sooner than national rules of thumb, especially when a heat-pump conversion would unlock Seattle City Light or PSE money at the same visit and your panel can support it.
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Heating
80% or 95%+ AFUE: which furnace tier should I buy?
This is the AFUE-tier decision framework — not the 80%-vs-95% comparison table with spec columns. In Seattle's long heating season, a condensing furnace (90–99% AFUE) usually justifies its premium over an 80% unit — you keep 15+ more cents of every gas dollar for six-plus months a year, and current WA code pushes the same direction. The honest exceptions are venting-constrained installs in pre-war housing, short ownership timelines, and homes where the premium should fund a heat-pump conversation instead. Staging (two-stage/modulating) often affects daily comfort more than the last few AFUE points on a mild PNW shoulder day.
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Heating
How do I actually compare HVAC quotes?
This is the quote-comparison framework — not a price spreadsheet. Line up any two bids on five axes and the 'cheaper' one frequently stops being cheaper: how the size was determined (load calculation vs guess), what scope is included (permits, venting, electrical, disposal), which equipment tier exactly, what labor warranty backs it, and who files the rebates on your utility territory. Seattle City Light instant discounts apply at purchase through qualifying dealers; PSE conversion rebates require network-qualified installers from April 2026 — price is the fifth question, not the first.
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Air Conditioning
Should I repair my AC or replace it?
This is the repair-or-replace decision framework — not the side-by-side cost table on our AC installation pricing page. Under 10 years with a first-time, named failure: repair. Past 12–15 years — or any compressor-scale failure, or a second refrigerant top-off — replacement math usually wins. In Greater Seattle, add two local inputs before you sign: whether you're on Seattle City Light or PSE (rebate paths differ), and how long you'll stay — a 12-year-old condenser on a five-year horizon often repairs; the same unit when you're planting roots in a Ballard Craftsman often funds replacement. Every AC replacement here should also price the heat pump alternative, because that's where utility money lives.
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Air Conditioning
Adding cooling: central AC or a heat pump?
As cooling machines they're the same hardware — a heat pump is an AC with a reversing valve. This guide walks the decision framework: furnace age, how long you'll stay, rebate eligibility on your utility territory (Seattle City Light instant discounts vs PSE conversion or hybrid rebates), and whether you're hedging PSE gas-rate escalation. The side-by-side comparison table on our compare page is for when you already want column specs — use this page when you're still deciding which path fits your house. Straight AC costs less upfront when the furnace is staying; a heat pump replaces most of that furnace's job, unlocks utility rebates, and changes your winter fuel math.
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Air Conditioning
Is a smart thermostat worth it — and which homes benefit most?
This is the worth-it decision framework — not the thermostat comparison table that lines up models by feature. For households with variable schedules on forced-air systems, yes: ENERGY STAR's certification data puts typical savings around 8% of heating and cooling bills, and PSE rebates $75 ($175 income-qualified) on qualifying ENERGY STAR models with occupancy sensing. Seattle City Light customers still benefit from occupancy savings on electric heat, but the PSE rebate is PSE-territory specific — verify your utility before shopping. The honest caveats: heat pumps need heat-pump-aware setup, ductless homes often run native controls per head, and a household that already holds a disciplined manual schedule has less headroom to capture.
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Heat Pumps
Heat pump or gas furnace: which is right for your Seattle home?
This is the decision framework — not the side-by-side table. In the Seattle area the choice usually comes down to three inputs: what you're replacing (conversion rebates only apply when you switch fuels or leave resistance heat), how long you'll stay in the home, and whether you want air conditioning — which a heat pump includes and a furnace never will. Use this page to walk those inputs; use the comparison table when you already know you want column-by-column specs.
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Heat Pumps
Should I convert my oil furnace to a heat pump?
This is the oil-conversion decision framework — not the fuel-cost comparison table. For most Seattle oil-heated homes, yes — and sooner beats later. Oil is the city's most expensive heating fuel (City of Seattle), conversion savings run 50%+ on annual heating costs per the city's own figures, and the Clean Heat rebate ($2,000 at any income, up to $6,000 income-qualified) has published deadlines. The honest work is in the details: tank decommissioning, panel capacity in pre-war wiring, ductless-vs-ducted fit for your housing stock, and how long you'll stay once the conversion is done.
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Heat Pumps
Should I repair my heat pump or replace it?
This is the heat-pump repair-or-replace framework — not the equipment comparison table. Heat pumps carry the house all twelve months, so the timeline compresses: under 8 years, repair; past 12, major repairs rarely pencil. Compressor and reversing-valve failures on out-of-warranty units are the classic replacement triggers — and replacement re-opens the utility rebate window that repair never touches. Add local inputs: SCL instant discounts step with HSPF2 tier; PSE conversion terms apply when the old system effectively heated with resistance; pre-war panel capacity may steer ductless vs ducted replacement; and stay horizon decides whether one more season of repair buys planning time.
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Heat Pumps
Will my electrical panel handle a heat pump?
This is the panel-readiness framework — not the electrification cost table. A heat pump needs a dedicated 240-volt circuit with real capacity headroom — and whether your panel has it is a fact, not a vibe: read the main breaker's amp rating and count what already claims capacity. Homes with 200-amp service are almost always fine; pre-war 60–100 amp services are where the retrofit conversation starts. Seattle City Light and PSE territories share the same housing stock patterns — Magnolia bungalows, Capitol Hill rowhouses, Eastside 1990s tracts — but rebate paths differ once the panel question is answered. Stay horizon matters too: a panel upgrade you need for a heat pump this year may be the same upgrade you'd need for an EV charger in three.
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Heat Pumps
Lennox, Daikin, or Mitsubishi: which line fits your home?
This is the brand-fit decision framework — not the Lennox-vs-Daikin-vs-Mitsubishi comparison table with spec rows. We sell and install all three, so the honest answer is a fit question, not a loyalty pitch: Lennox anchors premium ducted systems (furnaces to 99% AFUE, heat pumps to 10.30 HSPF2), Daikin's compact FIT excels on tight Seattle lots and townhome retrofits, and Mitsubishi's H2i hyper-heat line is our ductless backbone (100% capacity at 5°F). Your house — duct path, panel, lot lines, stay horizon — picks the brand before the badge does. Rebates follow model efficiency on SCL and PSE lists, not logos.
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Ductless Mini-Splits
Ductless or ducted: which retrofit fits your house?
This is the retrofit decision framework — not the side-by-side hardware table on our compare page. The fork is really about your ducts: homes with sound (or repairable) ductwork usually do best reusing it with a ducted heat pump; homes without ducts — or with ducts not worth saving — usually do best going ductless. Building new ductwork into a finished house is the expensive third path that rarely wins. Add Seattle inputs: pre-war housing stock, panel capacity for ducted vs ductless electrical draw, SCL vs PSE rebate mechanics, and how long you'll stay once you've paid for distribution.
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Ductless Mini-Splits
Single-zone or multi-zone ductless: how many heads do I need?
Start from the problem, not the floor plan — this page is the sizing/occupancy framework; use the comparison table when you want cost columns side by side. One space that's never comfortable wants a single-zone; whole-home heating/cooling without ducts wants multi-zone — but zones should follow loads and doors, not room counts. The most common design error is more, bigger heads than the house can load. Panel capacity and stay horizon belong here too: multi-zone wants a larger dedicated circuit; incremental single-zone often fits tight 100-amp pre-war service when you're solving one room at a time.
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Ductless Mini-Splits
Should I repair or replace my ductless mini-split?
This is the ductless repair-or-replace framework — not the install-cost comparison table. Ductless systems run the same math as any heat pump — 12–15-year typical lifespan, electronics are repair-tier, compressor/refrigerant-circuit failures on old units are replacement-tier — with one wrinkle: on multi-zone systems, diagnose whether the problem is one head, one zone's circuit, or the outdoor unit before any replacement conversation. Add local inputs: SCL instant discounts and PSE conversion rebates attach to qualifying replacements; pre-war homes often choose ductless precisely because line sets avoid duct demolition; stay horizon decides whether head-level repair on a 13-year system is a bridge or a trap.
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Indoor Air Quality
What MERV rating should I actually buy?
This is the symptom-and-airflow decision path — not the MERV 8/11/13 comparison table with capture percentages. Buy the highest capture your system maintains airflow with: for most 1-inch filter slots that's MERV 8 (dust baseline) or MERV 11 (allergies, pets, smoke seasons); MERV 13 in a 1-inch slot chokes many residential blowers. If your needs point at 13, the durable answer is a 4–5-inch media cabinet, not a denser 1-inch pleat. Greater Seattle's wildfire smoke seasons, older single-speed blowers in pre-war housing, and variable-speed equipment in newer Eastside builds all change the ceiling — measure static pressure, then shop.
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Maintenance & Tune-Ups
Is a maintenance plan worth it, or should I pay per visit?
This is the maintenance-plan decision framework — not the plan feature comparison table. The plan math is honest and simple: if you'd book the seasonal visits anyway, a plan prices them predictably and adds the things you can't buy per-visit — priority scheduling when everyone's system fails at once, repair discounts, and replacement credit that accrues. If you wouldn't book the visits anyway, the plan is what makes them happen — which is its own argument. Heat-pump households in Seattle's mild-but-long shoulder seasons run year-round duty; single-furnace homes in PSE gas territory face a different failure calendar than SCL all-electric bungalows — match the tier to how hard your equipment actually works.
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Learning Center
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Pricing & Savings
Sourced market ranges, cost guides, and the active Seattle rebate stack.
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