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The Ultimate Guide to Environmentally Friendly HVAC Options

As the world grapples with the need to reduce ecological footprints, the importance of environmentally friendly HVAC systems has become a hot topic.  

Your HVAC system plays a significant role in your environmental footprint – but the good news is that there are quite a few environmentally friendly HVAC options out there! 

Let’s dive into the world of green HVAC systems and explore how they can help us live more sustainably.

Benefits of Environmentally Friendly HVAC

Going green with your HVAC isn’t just good for the planet—it’s also great for your wallet. Energy-efficient systems can significantly reduce your monthly bills. 

Plus, they’re usually quieter and maintain a more comfortable temperature. 

But the real win? Lowering your carbon footprint. 

By choosing eco-friendly heating and cooling, you’re taking a powerful step to combat climate change. You can be cozy at home and an eco-hero.

Types of Environmentally Friendly HVAC Systems

There are quite a few sustainable HVAC system options to help make your home more efficient and eco-friendly. From geothermal heat pumps to heat pumps, each has its benefits.

Geothermal Heat Pumps

Definition: Geothermal heat pumps leverage the stable temperature underground to heat and cool homes by exchanging heat with the earth through a loop system.


  • Extremely energy-efficient
  • Low operational costs over time
  • Long lifespan and reliability
  • Reduced emissions compared to conventional systems

High-Efficiency Air Conditioners

Definition: High-efficiency air conditioners are designed to use less energy than standard models by incorporating advanced features like variable-speed fans and compressors.


  • Lower energy usage = cost savings
  • Fewer greenhouse gas emissions
  • Often quieter operation

Ductless Mini-Split Systems

Definition: Ductless mini-splits are heating and cooling systems that allow for temperature control in individual rooms or spaces without the need for ductwork. 


  • Flexible installation options
  • Energy-efficient, as there’s no loss of energy through ducts
  • Individual zone control for personalized comfort
  • Improved indoor air quality due to lack of ducts
  • Uses Inverter technology that reduces the strain on the grid during startup

Dual Fuel Systems

Definition: Dual fuel systems combine an electric heat pump with a gas furnace, automatically switching between the two depending on which is most efficient at a given temperature.


  • Optimized energy use by selecting the most cost-effective fuel source
  • Reliable performance in all weather conditions
  • Potential for lower heating costs
  • Reduced carbon emissions during milder weather when the heat pump is in use

Heat Pumps

Definition: Heat pumps are versatile systems that provide both heating and cooling by transferring heat between the indoors and outdoors instead of generating it directly.


  • Highly efficient, using less energy compared to conventional HVAC systems
  • Can reduce carbon footprint as they operate with green heating and cooling principles
  • Capable of providing consistent heating and cooling comfort throughout the year
  • Potential to be powered by renewable energy sources, enhancing eco-friendliness
  • Some heat pumps have inverter technology

Solar-Powered HVAC

Definition: Solar-powered HVAC systems utilize energy from the sun that is converted into electricity through photovoltaic panels to run heating and cooling systems. These systems can significantly reduce dependency on traditional, non-renewable energy sources.


  • Reductions in electricity bills due to reliance on solar energy
  • Clean, renewable energy source helps lower carbon emissions
  • Minimal operational costs and maintenance after initial investment
  • Works seamlessly with existing HVAC components in many cases

Energy Efficiency Ratings and Certifications

It is important to look for energy efficiency ratings when shopping for a sustainable HVAC system.

SEER2, or Seasonal Energy Efficiency Ratio, is your go-to metric in the HVAC world. It measures how efficiently an air conditioner converts electricity into cooling power. The higher the SEER, the more energy-efficient and eco-friendly your system is.

Then there’s ENERGY STARTM. This little blue label means a product meets strict energy efficiency guidelines set by the EPA. So, when shopping for a green HVAC system, look for a high SEER2 rating and that ENERGY STARTM label.

AFUE, or Annual Fuel Utilization Efficiency, is a measure of your furnace’s efficiency in converting fuel to energy. Think of it like this: if a furnace has an AFUE of 90%, that means 90% of the fuel is used to warm your home, while the other 10% goes up the chimney or flue. A higher AFUE rating equals more efficiency and less wasted energy.

HSPF2, or Heating Seasonal Performance Factor, is a measure of a heat pump’s efficiency over a heating season. It calculates the total heating output (in BTUs) divided by the total electricity used (in kilowatt-hours). A higher HSPF2 rating means the system is more energy-efficient, saving you money and reducing your carbon footprint.

How Eco-Friendly is Your HVAC?

When evaluating your home requirements for an eco-friendly HVAC system, consider the following to ensure you choose the most suitable option for your needs:

Assess Your Home’s Energy Efficiency

Before installing a new system, it’s wise to assess and improve your home’s energy efficiency. 

Look into insulation levels, window conditions, and air sealing in your home to minimize energy loss. An energy audit can be very helpful in identifying areas where improvements can be made.

Determine the Right Size

Choosing the correctly sized HVAC system is crucial. 

A system that’s too large will cycle on and off frequently, wasting energy – while one that’s too small won’t be effective. A professional HVAC contractor can help calculate the right size based on your home’s square footage, climate, insulation quality, and other factors.

Consider the Climate

The climate where you live can significantly impact the type of eco-friendly system that’s best for you. In areas, like Portland, with moderate temperatures, heat pumps are very efficient. However, in regions with extreme winters, a dual-fuel system or a high-efficiency furnace might be more appropriate.

Understand Different Systems and Their Benefits

Research various eco-friendly HVAC options such as heat pumps, high-efficiency air conditioners, and ductless mini-split systems. Each has its own set of benefits and suitability depending on the specifics of your home and climate.

Check for Rebates and Incentives

Look for any rebates, incentives, or tax credits available for installing energy-efficient systems. These can significantly offset the initial investment costs and make green HVAC options more affordable.

Prioritize Features

Decide on which features are important to you—for instance, if you want a smart thermostat, variable speed motors, or other advanced technologies that enhance efficiency and comfort.

Read Efficiency Ratings

Pay close attention to the SEER (for cooling systems), AFUE (for furnaces), and ENERGY STARTM certifications when comparing different models. These ratings will provide you with an estimation of the system’s energy usage and potential savings.

Choose a Reputable Installer

Select a qualified and experienced HVAC installer who is familiar with eco-friendly systems. Proper installation is key to ensuring that your system operates efficiently and effectively.

Evaluate Costs vs. Long-Term Savings

While eco-friendly HVAC systems may have higher upfront costs, calculate the long-term savings on utility bills. A more expensive system that is highly efficient could result in greater savings over its lifespan.

Size and Capacity

Matching an HVAC system size to your home needs is vitally important for several reasons. An improperly sized system can lead to inefficient operation, increased wear on the system’s components, higher utility bills, and a less comfortable living environment.

Load Calculation is a detailed analysis used to determine the right size of HVAC system for your home. It takes into account various factors such as:

  • Square footage of the home
  • Regional climate
  • Number and quality of windows
  • Insulation levels
  • Air infiltration rates
  • The home’s orientation
  • Heat-generating appliances
  • Occupancy

Is a Heat Pump Right for My Home?

Many homeowners in Portland are looking to install a heat pump. However, many Portland homes may not be ideally suited for standard heat pumps due to factors such as:

  • Large and/or older homes that could be drafty with outdated insulation.
  • The presence of significant temperature variations across different areas of the house.
  • Historic homes might have restrictions on the type of HVAC upgrades permissible.

While heat pumps are generally energy-efficient and environmentally friendly, they work most efficiently when they don’t have to combat excessive heat loss or gain due to poor insulation or air leaks. For a large, drafty, and poorly insulated home, the heat pump may have to work much harder to maintain comfort, potentially negating the efficiency benefits.

Savings Potential of Upgrading to an Energy-Efficient System

Homeowners and businesses can adopt various strategies to save money and reduce wasted energy.

  • Lower energy consumption
  • Increased HVAC lifespan
  • Enhanced comfort
  • Reduced carbon footprint
  • Incentives and rebates

By focusing on these key areas you can make informed decisions about your HVAC system that will save money and contribute to a healthier environment.

How Do I Eco-Upgrade My Current HVAC System?

Regular maintenance of your HVAC system ensures peak performance and maximizes efficiency for green heating and cooling.

  • Clean or replace your air filters regularly
  • Check for leaky ducts and seal them
  • Improve insulation in walls, floors, and attic
  • Upgrade to a smart thermostat

By following these simple steps, you can make small but impactful changes that will contribute to the overall eco-friendliness of your HVAC system.

Installation and Maintenance

Installing your HVAC system isn’t a DIY job – it’s crucial to have a pro do it to ensure optimal performance. Jacobs makes the process easy:

Step 1: Give us a call

Step 2: Choose your perfect system

Step 3: Jacobs double-checks every detail

Step 4: Smooth installation day

And don’t forget about regular maintenance. Things like changing filters and annual check-ups keep it running smoothly. Treat your system right, and it’ll return the favor with top-notch efficiency.

Cost Considerations

The initial costs associated with environmentally friendly HVAC systems can be broken down into two main components:

  • Installation
  • Equipment

Upfront costs for an energy-efficient HVAC system could range from $13,000 to $30,000, depending on the system and a variety of other factors. A furnace system could start at $6,000 and go up to $12,000. Going green with your HVAC system might seem pricey at first but it does pay off in the long run. Energy-efficient HVAC systems can reduce energy consumption by up to 30%, and upgrading your system could lower monthly utility bills by 20–40%. Lower energy bills, incentives, and fewer repair costs – it’s a win-win for both your wallet and our planet.

Government Incentives and Rebates

Oregon homeowners interested in upgrading to eco-friendly HVAC systems have access to a variety of incentives and rebates that can make these improvements more affordable while promoting energy efficiency and reducing their environmental impact.  Not only do these systems contribute to a healthier environment, but they also provide long-term savings through reduced energy bills. For detailed guidance on available Oregon energy rebates and tax credits and how to qualify, homeowners can refer to expert services or visit our Oregon Energy Rebates and Tax Credits Guide.

Green HVAC Installation in Portland

Going green starts with optimizing your home’s energy use, and a key player is your HVAC system. Our eco-savvy experts at Jacobs Heating & Air Conditioning are pros at spotting efficiency hiccups early, helping you keep comfort up and energy costs down. With our deep knowledge and experience, we will guide you toward making smart, earth-friendly choices for your heating system.

If you’re interested in high-efficiency HVAC installation in your Portland, Oregon, or Vancouver, Washington home, contact us to talk to an HVAC specialist about your options. 

About the Author

Amanda Jacobs portrait

Amanda Jacobs, Internal Project Manager

Amanda Jacobs is an Internal Projects Manager and 3rd generation member of Jacobs Heating & Air Conditioning. She received her MBA from Seattle University and has worked for a leading HVAC training and consulting firm. When not talking HVAC on the Jacobs Blog, you can find her on the golf course or whipping up her famous vegan chili.