Gas Furnaces

Furnace service.

L & J Heating & Cooling is the leading HVAC company in Oregon City, OR, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.

How Much Money Can a New Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

AFUE Energy Savings Calculator

{{ afueOld }}% vs {{ afueNew }}%

{{ annualNaturalGasSavingsPercent() }}%

{{ afueOld }}%
${{ afueAnnualOperatingCostOldUnit() }}
Annual Cost
{{ afueNew }}%
${{ afueAnnualOperatingCostNewUnit() }}
Annual Cost

Estimated 15-Year Savings:*
${{ projectedNaturalGasSavings }}

{{ year }} {{ state }} average residential natural gas retail price of ${{ rateResidentialNaturalGas }}/Mcf**.
*Based on an average annual rate increase of {{ avgUtilityIncrease }}%.

This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




Rate ($/Mcf)


Average Annual Heating Hours***

Historical Comparison

{{ state }}'s natural gas prices compared to {{ yearFifteenYearsAgo }}.

{{ yearFifteenYearsAgo }}


${{ priceFifteenYearsAgo }}/Mcf

{{ yearTenYearsAgo }}

{{ differenceTenYears }}

${{ priceTenYearsAgo }}/Mcf

{{ yearFiveYearsAgo }}

{{ differenceFiveYears }}

${{ priceFiveYearsAgo }}/Mcf

{{ year }}

{{ differenceCurrentYear }}

${{ rateResidentialNaturalGas }}/Mcf

** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

** Data for Canadian cities from
*** Data from

Furnace Repair

Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy. We repair all makes and models, and we will never try to sell you a service that you don’t need. Our technicians are honest and hard working, and we’re always transparent and fair about the work we do.

Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. Sometimes a new furnace is the most cost-effective and energy-efficient way to go. We will always be honest with you about a possible furnace replacement. We value our time and your money––we don’t want to perform repairs or service on an appliance that is in need of replacement.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Oregon City, OR residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two-stage furnace has two settings––full and half speed. This is a more efficient way to heat and provides for better comfort, because it can move the air at a slower pace.

Variable Stage or Modulating: A variable-stage or modulating furnace modulates the speed and heat output based on the temperature outside and the desired comfort level. This furnace only works as much as you need it, making this type the most energy-efficient type of furnace.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate the correct size furnace for your home. The number of BTUs, or British Thermal Units, needed to heat your home is dependent on a number of variables. Contrary to what you might think, a bigger furnace may not necessarily mean more heating power for your home. Call us at L & J Heating & Cooling, and we can set up an appointment to calculate the furnace size you might need.

Gas Furnace Maintenance in Portland, 97204

“The service people were not only on-time but early. Work was done quickly and their attitude was highly professional. Also checked my heat pump which was fully functional. No complaints at all. Thanks for wearing masks!!!”
- Rowan B.

Gas Furnace Repair in Oregon City, OR 97045

Great job from your guy Ron

Gary M.

Gas Furnace Replacement in Oregon City, 97045

“Joe planned and supervised the project of the replacement of a very old gas furnace, plus adding air conditioning to the system. Vincent and Jeremy worked tirelessly and efficiently for two and half days doing the installation, which required some extra tasks one wouldn’t find in a newer house. That included an entirely new approach to the venting, as the old furnace venting no longer met code. In addition, they installed new venting for the gas water heater, bringing that up to code, even though that was not directly related to the furnace project. That required a climb onto the second-story roof for Vincent. They always arrived on time, did high-quality work, were courteous and respectful. When they completed the job, they left my old cellar cleaner than they had found it! I give the highest recommendations to this team!”

- Bill L.

Gas Furnace Maintenance in Oregon City, OR 97045

Great timely updates on the scheduled service call & the arrival of the technician. Ron arrived on time, very cordial & exhibit an outstanding level of customer service. I will use this company for future HVAC services. Thx.

George O.

Gas Furnace Maintenance in Lake Oswego, OR 97035

Ron the service tech was on time, courteous and professional as always.

Chris R.

Gas Furnace Replacement in Oregon City, 97045

“Step one was completed today, an appointment for my gas furnace replacement plus the addition of AC. Joe arrived on schedule and gave options for ways the new system could be installed. He answered all my questions and gave me quotes for several grades of equipment. I had been worried that it would be a complicated process, but he made it all very easy and clear. I’m now looking forward to the next step, installation, which I’m confident will go just as smoothly for me. And the quotes were less than I was expecting, another big plus!!!”

- Bill L.

Gas Furnace Maintenance in Milwaukie, OR 97267

I am happy and he did it good job satisfied, thank you.

Fernando H.

Gas Furnace Installation in West Linn, 97068

“After living on borrowed time for almost 10 years, our furnace finally failed. The heat exchanger had a crack and dangerous fumes were being blown into our home as a result. This forced me to reach out to a number of different heating and cooling specialists for quotes, system review, and timelines. Needless to say, since I’m writing this review, I chose to go with L & J Heating & Cooling.

But here is why. When I called and asked for help, they came out the very next day to meet with me – other companies deferred me at least 3 days. Second, they explained their procedures and systems to me in enough detail that I could make an educated decision, this included giving me a cafeteria menu of options that included availability of the equipment. Third, they did end up being the lowest costs overall for what I wanted! And lastly, they were 100% on-time to do the work along with getting it done on time – this last bit almost never happens.

I work in real estate, I deal with clients who have the very same issue or need to have a furnace repaired as a condition to close. In every case going forward I will be recommended L & J Heating & Cooling to my clients for any and all repair and service needs.

Also, Joe is a swell guy.”

- Ron B.

Gas Furnace Repair in Canby, OR 97013

So far, so good!

Bill R.

Air Conditioner Maintenance in Portland, OR 97230

Ron was terrific in servicing my heating and cooling. Thank you!

Sharon B.

Need Furnace Service?

Contact the experts at L & J Heating & Cooling.

Call us at 503-263-4663!