Replacing a furnace in a Sammamish home is a chance to cut gas bills by 15–20% and lock in reliable heat for the next two decades. HotWire designs each install around your Plateau home’s actual heat load, ductwork condition, and future plans.
Furnace Installation Questions from Sammamish Homeowners
High-efficiency 96%+ AFUE gas condensing furnaces are our most-installed unit across Sammamish — Trane XC95m, Lennox SLP99V, Carrier Infinity 59MN7, Bryant Evolution 987M. These modulate gas input in fine increments, run variable-speed ECM blowers, and vent through 2-inch or 3-inch PVC. Two-stage 96% units (Trane XR97, Lennox EL296V, Carrier Performance 59TP6) offer significant comfort improvement over single-stage at a moderate price bump. For value builds and rental properties, single-stage 96% units from Rheem, Ruud, Goodman, Amana, and Payne provide efficient heat at lower upfront cost. Larger custom Sammamish homes may need 100k+ BTU inputs or dual furnaces for zoned systems — we design those and handle the gas piping upgrades that go with them.
Every Sammamish furnace install starts with a home walk-through by our designer — not a phone quote. We check gas meter capacity, existing electrical, current ductwork condition and sizing, venting path options, and current comfort complaints. Manual J heat loss calculation determines the correct BTU input for your home; oversized furnaces are a bigger problem than undersized in Sammamish’s mild climate. You get a written proposal covering equipment, install labor, permits, warranty, and rebate credits.
Install day: crew arrives at 8 AM, existing furnace disconnected and removed, new unit set and connected to gas, electrical, condensate, and venting, ductwork transitioned and sealed, startup and commissioning with combustion analyzer and static pressure gauge, walkthrough with homeowner. Most Sammamish furnace installs finish by 2–4 PM the same day. Two-story homes with attic ductwork may extend into a second day if we’re re-routing venting.
Financing runs 0% for 12–18 months through our partners. City of Sammamish permits are pulled and inspections coordinated. PSE rebate paperwork and federal tax credit documentation are prepared and submitted for you at closeout.
We provide HVAC and appliance repair throughout Sammamish, including:
