Gas Furnace

- Learning about the components of an HVAC system.

A gas furnace provides heat to a home, and is more efficient than a heat pump when the temperature drops below 40°

The basic building blocks are as follows:
  • A burner, through which gas (natural or propane) is burned
  • A heat exchanger, which is a metal device that absorbs heat from the flames.
  • A flue or vent pipe, to exhaust byproducts of combustion (such as water vapor and carbon dioxide)
  • A fan motor which is responsible for pulling air from the home and forcing it through the heat exchanger to be heated


When your thermostat senses that the house is too cold, the flames ignite to heat up the heat exchanger and the fan motor begins pulling air from the home (return air duct). The air is forced through the heat exchanger, and it heated up by the heat exchanger. Then the air is sent back into your home via ductwork.

Get More Comfortable Advice: A variable speed fan will provide you with better efficiency, they are quieter and also keep your home more comfortable. Additionally, if you have indoor air quality products such as an advanced air cleaner or whole home humidifier, a variable speed fan is ideal because it regulates air flow through the home more often, thus keeping the air humidity and filtration at a more optimal level.

Furnace heating efficiency is measured by an Annual Fuel Utilization Efficiency (AFUE) percentage rating. A higher AFUE percentage indicates a more efficient furnace.

For a recommended HVAC heating contractor, please visit our dealer locater: Los Angeles heating contractor

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Los Angeles Furnace


Conserving Energy Really Is Important
Modern products make life much easier for us all, but some of them are hurting our environment at alarming rates. Fortunately, manufacturers are taking strides to product energy efficient products and alternative energy solutions that are paving the way for a much better tomorrow.
HVAC & Energy Consumption
Your home heating and cooling system will typically eat up half of your monthly utility bill. All of your computers, blenders, lights and gadgets still will not equal the cost of staying comfortable.
What You Can Do
As mentioned above, technology is coming around with better solutions that are more affordable than ever. Even the most expensive green options, like geothermal and solar energy, are become more affordable every day. Homeowners who cannot afford a new, more efficient HVAC system can still take steps to save energy, like regular system maintenance, enhanced air filtration and more.
Pursue Efficient Solutions
When a Los Angeles AC contractor comes to your home for service work on your heating and cooling system, what is the goal? To save money with the lowest cost fix for a problem? Not the best plan.

Homeowners need to enable their CA HVAC dealer to provide efficient, energy saving products. Often, a dealer is hammered with customers who just want the lowest price. This forces them to put in cheap product to satisfy customer demand. This in turn just prolongs poor environmental practice nation wide.

If you are in search of a local dealer you can trust, check our list of recommended contractors: CA AC
Geothermal Energy
The greenest way to keep your home comfortable is definitely via either solar energy or a geothermal heat pump (GHP). A GHP uses the constant temperature of the earth as a renewable energy source, exchanging energy during the different seasons to keep your home comfortable the same way a normal electric heat pump would. Renewable Energy
Who We Are
Get More Comfortable is a free information resource dedicated to educating homeowners about the products and best practice behind heating and cooling. We can clarify concepts and give you the latest advice. How? Because we are owned by the largest privately held HVAC distributer in the United States.

Since we are owned by industry experts, we know heating and cooling. Plus, Get More Comfortable isn't pushing a brand at you. There are many manufacturers out there making great product. At Get More Comfortable we'll teach you about important concepts, help you learn about things you didn't know were possible.

Our goal is to enable you as a homeowner, to be more confident in HVAC decisions while also moving you to new products and solutions that save energy and give you much more control over the comfort levels in your home. We are confident that when you learn about the many possibilities of residential HVAC, you might actually get excited to try some of them out!

For comments or questions about this site or residential comfort control, use the contact form on our home page. We are not distributing your information to SPAM lists, but simply routing requests to local specialists who can get you the right answer.

We hope that by using this site, you will truly be able to Get More Comfortable.
"My wife and I had a hybrid system installed for our home since fuel prices are pretty high in our area. The dealer we used didn't install it correctly, and for an entire year we didn't benefit at all from the extra expense we paid for hybrid heating.

I talked to the Get More Comfortable team, and they recommended a new thermostat that would handle my existing system. I ordered it, had it installed, and now for the first time we are truly saving money with our home heating system. I highly recommend them!"


- K & S / Memphis, TN
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