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Home/Portland/Services/Furnaces
Furnaces · Portland Metro & SW Washington

Safe, reliable heat through every Oregon winter. We make sure the furnace heating your family is operating safely. Then we make sure it's operating well.

A furnace is a controlled fire moving heat through your home. When it's running right, you don't think about it. When it isn't, the consequences run from a cold house on the first ice storm of November to carbon monoxide leaking from a cracked heat exchanger. Tru72 measures combustion gas composition, inspects the heat exchanger by analyzer and by eye, verifies gas pressure, and tests safety switches on every furnace service call. The numbers go on the invoice so you see what we saw, and your family heats safely through the long Oregon winter.

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Combustion Analyzer on Every Call Daikin · Goodman Oregon CCB #40820
Service Fee
$72 Diagnostic
Credited to repair
Response
Same-Day
When called before 2pm
Equipment
Daikin · Goodman
Gas, electric, condensing
Labor Warranty
1 Year on Install
Plus manufacturer parts
What we verify before we leave

Three things that determine safe heat. Measured on every visit. Documented on every invoice.

01

The heat exchanger is whole.

The heat exchanger is the metal wall that separates the combustion gases from the air your blower sends through the house. A crack lets those gases (including carbon monoxide) into your living space. Tru72 inspects the heat exchanger visually and with a combustion analyzer on every service.

What it means: this is the measurement that protects your family from carbon monoxide. There's no DIY substitute and no visual-only shortcut. If we find a crack, we red-tag the unit and walk you through what comes next.

02

The combustion is clean.

A combustion analyzer probe in the flue reads the actual gas composition the burner is producing: CO, CO2, O2, stack temperature. Tru72 tunes the furnace into the manufacturer's spec window, every visit, and documents the reading.

What it means: clean combustion is safer (less CO produced), more efficient (less gas wasted), and gentler on the equipment (longer service life). Three benefits from one measurement.

03

The gas pressure is right.

Inlet and manifold gas pressure are measured against the appliance nameplate. Pressure too high or too low changes the burn quality and equipment longevity. Most "the furnace is running rough" complaints trace back here.

What it means: more reliable heat through the cold snap, longer equipment life, and fewer mid-winter service calls. Cheap to measure, expensive to ignore.

Combustion safety first

Schedule a real furnace service. Analyzer, manometer, time.

A Tru72 technician arrives with the instruments to actually measure your furnace and the time to do it right. The numbers go on the invoice.

Schedule Furnace Service Call (541) 926-2321
The Tru72 furnace standard

Two ways to service a furnace. One looks at it. The other measures it.

Typical service
Tru72 service
Heat exchanger checked by flashlight. A quick peek through the burner cell. Hairline cracks invisible to the eye are missed. The family unknowingly breathes combustion gases including CO.
Heat exchanger checked by combustion analyzer. Combustion gas readings catch cracks that visual inspection misses. Your family's air stays separate from the burner's exhaust. Safety verified with data, not assumed.
Gas pressure assumed. If the burner lights, the pressure is "fine." System runs out of spec, burns inefficiently, wears the components faster than it should. Mid-winter service calls multiply.
Gas pressure measured and tuned to spec. Inlet and manifold pressure adjusted to the nameplate, documented on the invoice. Reliable heat through ice storms. Lower bills. The furnace lasts its full service life.
Combustion tuned by smell. Tweaked until "it looks right." Burner runs dirty. More CO produced than necessary. More gas burned for the same heat. Both bad for your family and your bill.
Combustion tuned by analyzer reading. CO, CO2, O2, stack temperature measured and tuned into spec. Cleanest burn, safest operation, lowest gas use. Three benefits from one measurement.
Replacement sized "same as the old one." New furnace matches the BTU rating of the previous one, whether or not it was correctly sized. Often oversized: rooms get hot fast then cold fast, the furnace cycles constantly, and the bill is higher than it should be.
Replacement sized to your actual home. Manual J load calculation room by room. Even temperatures throughout the house, smooth long runs instead of constant cycling, longer equipment life, lower bills.
AFUE chosen by what's in stock. Efficiency tier driven by what's on the truck. You might overspend on premium where the payback doesn't work, or underspend on standard where condensing would have paid back in five years.
AFUE recommended by payback math. 80% standard vs 95%+ condensing modeled against your heating hours and Oregon gas rate. You see the math for your home and choose the tier that fits your timeline. No surprises after the install.
How a Tru72 furnace install goes

Five steps. Real measurements at each. From assessment to commissioning, the math runs the install.

01

In-home assessment.

Walk the home. Inspect the existing furnace, vent path, gas line, and ductwork. Free, no obligation.

02

Manual J load calc.

Real BTU heating load calculated room by room. AFUE options modeled against your gas rate.

03

Itemized quote.

Equipment options matched to the load. Vent and condensate scope itemized. Permit fees passed through at cost.

04

Install day.

Two-person crew. Equipment to spec. Vent piping correct for the appliance. Gas line sized. Permits pulled.

05

Commissioning.

Combustion analyzer reading, gas pressure, temperature rise, blower amp draw, safety switches. Numbers on the invoice.

From analyzer to install

Same diagnostic discipline. Repair or replace.

Whether the next step is a part swap or a full install, the same technicians who measured the system are the ones who do the work.

Schedule Furnace Service Call (541) 926-2321
Authorized equipment

Two brands. One family. The Daikin family of residential furnaces.

Daikin

Variable-speed, modulating burner, ultra-high AFUE.

Daikin furnaces include variable-speed blowers and modulating gas valves that match output to demand in small increments. Quieter operation, more consistent temperature, the highest AFUE ratings (up to 98%). Best fit for homeowners staying long-term who want the smallest gas bill.

Goodman

Strong AFUE at an accessible price, excellent warranty.

Goodman is the workhorse of the Daikin family in North America. Solid 80% standard and 95%+ condensing options at a price point that does the payback math even on a tight budget. Heat-exchanger and parts warranties are among the strongest in the industry.

Repair or replace

Should I fix it or replace it? An honest framework, not a sales script.

Repair usually makes sense when

Fix it.

  • The furnace is under 15 years old
  • The heat exchanger is intact and the analyzer reads clean
  • This is the first or second repair in recent memory
  • The failed part is bounded and affordable (igniter, flame sensor, blower capacitor, gas valve)
  • The home is well-served by the existing equipment size and ductwork
Replacement usually makes sense when

Replace it.

  • The heat exchanger is cracked (safety, no repair option)
  • The furnace is past 15 to 20 years and showing rising repair frequency
  • A major component has failed (control board, inducer motor, secondary heat exchanger on a condensing unit)
  • The next repair cost approaches replacement cost
  • The home would benefit from a heat pump conversion (Energy Trust rebates, federal credits, electric backup options)
The safety conversation

Carbon monoxide is invisible. The data isn't.

Oregon winters are long, damp, and punctuated by ice storms, atmospheric rivers, and the occasional below-freezing cold snap that takes out the grid for a day. The furnace is the appliance your family relies on most in those weeks. When it's running right, you don't think about it. When it isn't, the consequences run from a cold bedroom in November to carbon monoxide leaking from a cracked heat exchanger.

Every gas furnace burns fuel and produces combustion gases. A correctly operating, well-vented furnace pushes those gases out the flue. A poorly tuned or damaged furnace can leak them into the air your blower distributes, and the most concerning of those is carbon monoxide. Tru72 measures combustion on every visit, inspects the heat exchanger by analyzer and by eye, verifies draft at the flue, and tests the safety switches that should shut the furnace down if something is wrong. If we find a problem that affects safety, we tell you immediately, in plain language, with the actual measurement in hand.

Beyond the service visit, every Portland home with a gas appliance should have a working CO detector on every level. If you don't, we will leave one with you at no charge on the service call.

Related Tru72 services

Heat Pumps

An electric alternative when the math favors it. Manual J on every install.

Indoor Air Quality

CO detection, fresh-air ventilation, and the rest of the system that keeps the air good.

Tru Comfort Maintenance

A fall heating tune-up catches combustion issues before the cold front does.
Furnace questions

Common questions about furnaces. Plain answers from a diagnostic-first crew.

What does Tru72 check on a furnace service call?
Every Tru72 furnace service call includes instrumented diagnostics. We measure gas pressure at the inlet and manifold, run a combustion gas analysis against the manufacturer specification, inspect the heat exchanger for cracks and corrosion, check flue piping and draft, verify ignition and flame sensor operation, test safety switches and the pressure switch, measure temperature rise across the heat exchanger, and inspect the blower motor and capacitor. Numbers go on the invoice.
When does a furnace need to be replaced rather than repaired?
Common replacement triggers: a cracked heat exchanger (safety, never repaired), age past 15 to 20 years with rising repair frequency, a major component failure (control board, inducer motor, gas valve) on a furnace already on its second decade, or efficiency that has dropped meaningfully due to age. The diagnostic visit measures the actual condition and we recommend repair or replacement based on what the numbers show, not on a sales target.
What furnace brands does Tru72 install?
Tru72 is an authorized dealer of Daikin and Goodman. Each carries gas furnace lines at multiple AFUE tiers (80% standard, 90% to 98% condensing). Equipment selection is driven by the Manual J output, your fuel source, vent path, and budget. Goodman offers strong parts warranties, including a lifetime heat exchanger limited warranty on many models; Daikin furnaces include variable-speed and modulating burner options.
Is a 90%+ high-efficiency furnace worth it in Portland?
Usually yes. A 95%+ condensing furnace converts more of the fuel you pay for into actual heat, which compounds over a 15- to 20-year service life. The trade is a different vent path (PVC sidewall, not metal flue), a condensate drain, and a slightly higher upfront cost. For Portland's heating-dominant climate, the payback math typically favors condensing equipment, especially when paired with the proper Manual J sizing.
Why is the heat exchanger inspection important?
A cracked heat exchanger leaks combustion byproducts (carbon monoxide among them) into the air your blower distributes through the house. There is no repair for a cracked heat exchanger; the unit must be replaced. Tru72 inspects the heat exchanger visually and with a combustion analyzer on every service. If we find a crack, we red-tag the unit, lock out the gas, and explain the next steps before anything else.
Do you service electric furnaces too?
Yes. Tru72 services and replaces both gas and electric furnaces. For homes currently on an electric resistance furnace, the diagnostic-first conversation almost always includes a comparison to a heat pump install, since the operating cost difference at PNW electric rates is significant. We will not push the upgrade; we'll show you the numbers.
How long does a furnace installation take?
Most furnace replacements are a one-day install (8 to 10 hours, two-person crew). Condensing furnace conversions that require new vent piping or condensate routing can add a few hours. Replacements that pair with a coil or ductwork remediation are scoped at quote.
What is the warranty on a Tru72 furnace install?
Manufacturer parts warranties apply per the equipment line (Daikin and Goodman publish their own, varying by model and registration). Tru72 provides a 1-year labor warranty on installation. Tru Comfort and Mission Ready members receive priority warranty service and a 24-hour repair response window.
Premium Comfort. Built on Trust.

Sleep well through the winter. Knowing the heat keeping your family warm is operating safely.

The cold front is coming. The furnace is the appliance your family depends on most. A Tru72 technician arrives with the analyzer to verify combustion, the manometer to verify gas pressure, the inspection to verify the heat exchanger, and the math to size a replacement honestly if it comes to that. You go to bed confident, not crossing your fingers.

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Clean. Quality. Comfort.

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