Written for homeowners in Molalla, Clackamas County and the Willamette Valley by Provision Heating and Cooling. General guidance only; every home and system is different. If you smell gas, leave the house and call your gas utility or 911 from outside. If a CO alarm sounds, get everyone out and call 911.
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Repair or replace
Should I repair or replace my furnace, heat pump or air conditioner?
Repair it if the system is reasonably young, has been reliable, and the repair is a modest share of what a new system would cost. Consider replacement when it’s older, needs a major part like a compressor or heat exchanger, uses R-22, or keeps needing repairs.
Comfort counts too. If rooms never get comfortable or bills keep climbing, a new system designed for the house may solve problems a repair can’t. Ask for both prices and decide with the numbers in front of you.
How long do HVAC systems last in the Willamette Valley?
As a rough guide, central air conditioners and heat pumps last around 12 to 15 years, and gas furnaces often 15 to 20 or more. Heat pumps run year-round here, heating all winter and cooling in summer, so they tend toward the shorter end.
Regular maintenance, clean filters and coils, correct refrigerant charge and good airflow all push those numbers up. Neglect pulls them down.
My system uses R-22 refrigerant. Can it still be repaired?
Often, but recharging it is expensive. R-22 hasn’t been produced or imported in the U.S. since January 1, 2020, so only recovered and reclaimed supply remains.
A small, fixable leak on an otherwise healthy system can still be worth repairing. A major leak or a failed compressor on an R-22 system is usually the point where replacement makes more sense.
Is a bigger system better?
No. An oversized system heats or cools quickly, shuts off, and short cycles. That wears parts, leaves temperatures uneven and, in cooling, doesn’t run long enough to pull humidity out.
Proper sizing looks at the whole house: square footage, insulation, windows, sun exposure and the ductwork. That’s why Provision designs systems on site rather than matching the old unit’s size.
What happens on a free estimate from Provision?
Provision comes to the house for an on-site consultation, looks at the existing equipment, ductwork and home, listens to what you want, and gives you a free estimate.
For a new system, the design is built around your home and what you’re hoping for. Call or text (971) 374-3227 to set one up.
How long does a new HVAC installation take?
A straightforward like-for-like replacement is often done in about a day. Jobs that add ductwork, change the type of system, add a heat pump where there wasn’t one, or need electrical changes can take longer.
You’ll know the expected timeline from the estimate, along with any permit and inspection steps.
Heat pumps & Oregon winters
Do heat pumps work well in Molalla and the Willamette Valley?
Yes. The valley’s mild, wet winters are well suited to heat pumps, which is why they’re so common here. On the coldest days they lean on backup heat, usually electric heat strips or a furnace in a dual-fuel setup.
Modern variable-speed and cold-climate heat pumps hold much more of their capacity in freezing weather than older models, and they cool in summer too.
Why is my heat pump steaming or covered in frost?
Light frost in cold, damp weather is normal. The heat pump melts it with a defrost cycle, which can send up a cloud of steam for a few minutes.
Heavy ice that covers the whole coil and doesn’t clear, or a solid block of ice on top or underneath, isn’t normal. That points to a defrost problem, low refrigerant, a fan issue or water dripping onto the unit. Call for service, and don’t chip ice off the coil.
What do “AUX” and “EM HEAT” mean on my thermostat?
AUX means backup heat is helping the heat pump, which is normal in very cold weather and during defrost. EM HEAT (emergency heat) runs only the backup heat and shuts the heat pump off.
Use emergency heat only if the heat pump has failed, because strip heat costs far more to run. If AUX runs constantly in mild weather, something needs attention.
What about ice storms and power outages?
When power goes out, a heat pump or furnace stops too, since even gas furnaces need electricity for the blower and controls. When power returns, let the system restart on its own; a proper setup brings the house back up without maxing out backup heat.
Never run a generator indoors or in a garage, and never use an oven, grill or camp stove for heat. If the system doesn’t come back after an outage, check the breaker once, then call.
Is a ductless mini-split a good option?
Often, yes. Ductless heat pumps work well in homes without ductwork, homes on baseboard heat, additions, shops and older houses where ducts won’t fit.
Each indoor head serves a room or zone, so you heat and cool only the spaces you use. Whether ducted, ductless or a mix is best depends on the house, which is what an on-site consultation sorts out.
Should I switch from a gas furnace to a heat pump?
Not necessarily. A heat pump adds cooling and is very efficient in this climate. A gas furnace gives hot air on the coldest days. A dual-fuel system pairs a heat pump with a furnace and uses each when it makes the most sense.
The right choice depends on your ductwork, electrical service, gas availability, and how long the current furnace has left.
Cooling, heat waves & smoke
Do I really need air conditioning in western Oregon?
More homes do now than a generation ago. The June 2021 heat dome pushed Portland to 116°F and Salem to 117°F, and multi-day heat waves have become a regular summer risk.
Cooling also lets you keep windows closed during wildfire smoke. A heat pump is often the most practical way to add it, since it replaces or supplements your heating at the same time.
Why is my AC blowing warm air?
Common causes are a tripped breaker or disconnect, a dirty filter, a failed capacitor or contactor, a frozen indoor coil, or low refrigerant from a leak. Check the thermostat setting and filter first.
If you see ice on the refrigerant lines or indoor unit, turn cooling off and run just the fan to thaw it, then call. Running a frozen system can damage the compressor.
Why does my AC run all day and never catch up?
Usually a dirty filter or coil, low refrigerant, leaky or crushed ductwork, or a system that’s undersized or failing. On the hottest afternoons, even a healthy system runs long cycles.
If it runs constantly and the house keeps getting warmer, turn it off and call for a diagnostic rather than letting it struggle.
What should I do with my HVAC system during wildfire smoke?
Keep windows and doors closed, close any fresh-air dampers if you have them, and run the system fan to recirculate indoor air through a good filter. A MERV 13 filter is a common target if your system can handle it.
A tighter return side, a proper filter rack and possibly a stand-alone air cleaner for a bedroom help a lot. Change filters after a heavy smoke event.
Can a heat pump cool the whole house?
Yes. A heat pump is an air conditioner that can also run in reverse to heat. Sized and ducted correctly, a central heat pump cools the whole house just like a central air conditioner.
Ductless systems can cool the whole house too, with heads in the main rooms, or just the spaces that overheat.
Maintenance, filters & air quality
How often should I schedule HVAC maintenance?
Provision recommends maintenance twice a year, ideally in spring and fall: the cooling side before summer and the heating side before the cold, wet months.
Heat pumps do both jobs year-round here, so twice-yearly service matters even more for them.
What does a maintenance visit include?
A typical visit checks and cleans the parts that affect efficiency and safety: filters, coils, condensate drains, electrical connections, capacitors and contactors, blower, refrigerant performance, thermostat operation, and on fuel-burning equipment the ignition, burners, venting and safety controls.
You also hear about anything wearing out, so it can be planned for instead of failing on the coldest night.
How often should I change my furnace or air filter?
Check it monthly and replace it when it looks dirty. For common 1-inch filters that’s often every one to three months; thicker media filters may last six months to a year.
Change more often in pollen season, after wildfire smoke, during construction, or with pets. A clogged filter cuts airflow, raises bills and can make a furnace overheat or an AC coil freeze.
Can better filtration help with allergies or asthma?
It can help. Higher-efficiency filtration captures more pollen, dust and fine particles, which many people with allergies notice.
The filter has to suit the system: a filter that’s too restrictive for the blower cuts airflow. A properly sized filter rack or media cabinet solves that. For medical questions, talk with your doctor too.
How do I know if my indoor air quality needs improvement?
Signs include dust that returns quickly after cleaning, musty smells, allergy symptoms that ease when you leave the house, rooms that feel stuffy, and condensation on windows.
A look at the filtration, ductwork, return air and moisture sources usually points to the fix.
Is condensation or water around my furnace or air handler a problem?
Yes, it should be checked. High-efficiency furnaces and air conditioners make water that should drain away; a clogged drain, cracked pan or failed condensate pump can leak or shut the system down.
Turn the system off if water is pooling near electrical parts, and call.
Ducts, thermostats & efficiency
Why are some rooms always too hot or too cold?
Usually ductwork: a long or undersized run, a disconnected or crushed duct, or no return path from that room. Sun exposure and insulation play a part too.
In Willamette Valley homes with crawl-space ducts, a disconnected run under the floor is a common culprit. Fixing the ducts is often far cheaper than new equipment.
Should my crawl-space ductwork be inspected?
Yes, especially in older homes or after any work under the house. Ducts in a crawl space can come apart, lose insulation or get crushed, and you’d never see it from inside.
Signs include weak airflow at certain registers, a cold floor above a run, and higher bills. Provision installs and repairs duct and vent runs.
Will a smart or programmable thermostat save money?
It can, mostly by setting back temperatures automatically when you’re asleep or away. The savings depend on how you use it.
With a heat pump, setup matters: big setbacks can trigger expensive backup heat on recovery. A thermostat configured for your heat pump avoids that.
Are smart thermostats compatible with my system?
Most are compatible with standard furnaces, air conditioners and heat pumps, but some need a common (C) wire, and some systems need specific wiring or an adapter.
Multi-stage, variable-speed and dual-fuel systems need the thermostat set up correctly for each stage. A proper install covers wiring and configuration.
What do SEER2, HSPF2 and AFUE mean?
SEER2 rates cooling efficiency, HSPF2 rates heat pump heating efficiency, and AFUE is the percentage of fuel a furnace turns into heat. Higher is more efficient for all three. SEER2 and HSPF2 replaced the older SEER and HSPF ratings in 2023 with a tougher test.
The highest number isn’t always the best buy. Sizing, ductwork and installation quality affect real-world efficiency as much as the rating on the label.
What is the new refrigerant change I’m hearing about?
Under federal rules, new residential air conditioners and heat pumps have been moving from R-410A to lower-global-warming refrigerants such as R-454B and R-32, starting in 2025.
Existing R-410A systems can still be serviced and repaired. The new refrigerants are classed as mildly flammable (A2L), so equipment is designed with added safeguards and should be installed by trained, licensed technicians.
Licensing, permits, safety & choosing a contractor
How do I verify an HVAC contractor’s license in Oregon?
Look the business up with the Oregon Construction Contractors Board (CCB), which licenses construction contractors including HVAC contractors and lists bond, insurance and any complaints. Provision Heating and Cooling LLC holds CCB license #261541.
Electrical work on HVAC equipment falls under the Oregon Building Codes Division, which issues the limited maintenance HVAC/R electrical license (Provision’s is LHR776). Check that the name on the license matches the business you’re hiring.
Do I need a permit to replace a furnace or heat pump in Oregon?
In most cases, yes. Replacing or installing heating and cooling equipment generally needs a mechanical permit, and often an electrical permit, from the building department that covers your address.
In Molalla, building permitting is handled through Clackamas County, which the city contracts with. A licensed contractor normally pulls the permits and arranges the inspection.
What should I do if I smell gas?
Leave the house right away. Don’t flip light switches, use phones inside, or start a car in an attached garage. From outside, call your gas utility or 911.
Don’t go back in until the utility or fire department says it’s safe, and have the appliance checked before using it again.
What should I do if my carbon monoxide alarm goes off?
Get everyone, including pets, out into fresh air and call 911. Don’t go back in to look for the source.
Once it’s safe, have fuel-burning equipment like a furnace, water heater or fireplace inspected before using it again. Every home with fuel-burning appliances or an attached garage should have working CO alarms.
What should I do if I have no heat in freezing weather?
Check that the thermostat is set to heat, the filter isn’t clogged and the breaker hasn’t tripped, then call. Never use an oven, grill or camp stove indoors for heat.
Keep interior doors open, close curtains, and drip faucets on outside walls. Use only space heaters made for indoor use, plugged directly into the wall, with clearance from anything that can burn.
How do I choose a good HVAC contractor?
Pick a CCB-licensed, bonded and insured contractor who comes to see the house before quoting a system, explains the options plainly, and puts the price in writing before work starts.
Be wary of quotes given over the phone for a whole system, of pressure to sign the same day, and of sizing based only on the old unit. A careful on-site look is the start of a good install.
