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Heat Pumps · The Install Experience · Learn

What a Hisense heat pump install actually looks like

A proper heat pump install is a designed project, not a box swap: load calculation first, permit filed, old equipment out, new system set and connected, then commissioning — measured verification that it performs to spec. For a typical single-system replacement, our family crew completes the swap in about a day; complex conversions take longer, and we tell you which yours is up front.

WA Lic. INFINHA841B8 400+ Google reviews

Quick answer

  • Before install day: Manual J load calculation, equipment selection, permit filed with your city or county — all handled by us.
  • Install day: old system out, new outdoor unit set (side-discharge HD units need modest clearance), refrigerant lines and electrical connected, condensate routed.
  • Commissioning is the step that separates pros: charge verified, airflow measured, controls tested — not just 'it turns on.'
  • Before we leave: thermostat or ConnectLife app walkthrough, warranty registration submitted, permit inspection scheduled.
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Before the truck arrives

Every install starts on paper. We run a Manual J load calculation from your home's real characteristics, select the Hisense system that matches (not oversizes) it, and file the mechanical permit with your jurisdiction — plus the L&I electrical permit if your project switches fuel. You'll know the schedule and what preparation, if any, your home needs before install day. Clearing access to the furnace closet or crawlspace hatch is usually the only homework.

Install day, hour by hour

The crew recovers refrigerant from the old system (required by law), removes the old equipment, and sets the new one. Hisense HD Series outdoor units are compact side-discharge cabinets, which gives placement flexibility on tight lots. Lines are connected and pressure-tested, the condensate path is routed and protected, electrical is landed, and controls are wired — 24V thermostat or the system's own controls, your choice where the model supports both.

Commissioning: the part you can't see but will feel

Once running, we verify refrigerant charge against manufacturer targets, measure temperature split and airflow, exercise heating, cooling, and defrost modes, and confirm the safeties. This is where rated efficiency becomes real efficiency — an uncommissioned system can look fine and quietly underperform for years. You get the readings, not just a thumbs-up.

After we leave

We register your equipment with Hisense so the warranty clock starts correctly, schedule the permit inspection, and set up the ConnectLife app (on ductless models) or walk through your thermostat. Then the same family answers the phone for the system's whole life — maintenance plans keep the annual service rhythm automatic.

Ready for the next step?

Talk it through with the family-run team that answers 24/7 — honest advice first, quotes only after we've actually seen your home.

Family owned · WA Lic. INFINHA841B8 · 400+ Google reviews

Common questions

How long does a heat pump installation take?

A straightforward like-for-like replacement typically takes about a day. Fuel-switch conversions, duct modifications, or electrical panel work extend that — we give you the honest timeline with the quote, not after.

Do I need to be home during the install?

For the start and the finish, yes — we review the plan when we arrive and walk the completed system with you before we leave. The hours in between are yours.

What if the inspection finds an issue?

That's on us to fix, not you — the permit and inspection are part of our scope. It's also why we commission thoroughly: inspections rarely surprise a system that was verified with instruments first.

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Infinity Heating & Air — licensed WA HVAC contractor (Lic. INFINHA841B8), family-owned in Graham. Last updated July 2026.

Choose Infinity & enjoy endless comfort.

Your perfect home environment awaits — call (253) 740-5135 or schedule service online and our team will take it from there.

Open 24/7 · 100% Satisfaction Guaranteed · Graham, WA

Before you go — got a quote from someone else?

Bring us any repair or replacement quote and our licensed family team will verify it — free, honest, no pressure. If their price and diagnosis are right, we'll tell you.

Family owned · WA Lic. INFINHA841B8 · 400+ Google reviews