How Furnace Efficiency Standards Will Change in 2023

March 02, 2023

Would you believe more than half of your home’s energy costs are associated to heating and cooling? That’s why it’s critical to have an energy-efficient HVAC system.

Furnace efficiency standards were last revised to 80 AFUE in 2015. AFUE, or annualized fuel utilization efficiency, determines how effective your furnace is at turning natural gas into heat. An 80 AFUE rating means your furnace will expend about 20% of the fuel it uses while generating heat.

In 2022, the U.S. government recommended new energy-efficiency standards for residential gas furnaces that would greatly decrease emissions, save customers money and promote sustainability.

This proposal is anticipated to:

  • Save Americans $1.9 billion annually.
  • Lower carbon emissions by 373 million metric tons and methane emissions by 5.1 million tons over the next 25 - 30 years, the equivalent of what 61 million homes emit each year.

Starting in 2029, the proposed rule would require all new gas furnaces to be 95 AFUE. This means furnaces would convert nearly all the gas they use into heat.

With these facts in mind, you may be asking yourself "what happens to my existing furnace"? As of now, nothing, as the proposed rule won't go into effect until 2029 at the earliest and doesn’t affect furnaces that are already in use.

But if you’re going to be needing furnace replacement in Odessa soon, highly energy-efficient furnaces are ready and available. See how these furnaces can save you money on your utility bills.

Guide to Condensing Furnaces

How Condensing Furnaces Work

A condensing furnace is a type of heating system that uses a secondary heat exchanger to capture wasted heat from the furnace's exhaust gases. This reduces the volume of energy wasted, increases energy efficiency and lowers CO2 emissions. It also demands less natural gas to create the same amount of heat compared to other types of furnaces.

How Condensing Furnaces Differ from Non-Condensing Furnaces

The main difference between a condensing furnace and a non-condensing furnace is that the former uses a secondary heat exchanger to capture any wasted heat from its exhaust gases, while the latter does not.

Expected Longevity of a Condensing Furnace

The life span of a condensing furnace varies on the brand, model and other factors. Generally speaking, a condensing furnace is likely to last between 10-20 years with appropriate maintenance and regular service. If your heating system doesn’t have regular furnace maintenance, the unit may struggle with performance and ultimately fail earlier than anticipated.

Why Condensing Furnaces Cost More

Oftentimes, condensing furnaces are more expensive than non-condensing furnaces. This is due to their increased efficiency and the additional components needed to capture any wasted heat from its exhaust gases. The added energy savings can often offset the price of purchase, however, so over time, it may be worthwhile investing in a condensing furnace.

Guide to Variable-Speed Furnaces

Variable-Speed Furnaces: What Are They and How Do They Operate

A variable-speed furnace can switch its fan speed dependent on the heating conditions of your [[location]] home. It runs at a slower speed until it detects a temperature decrease and then fires up to produce more heat. This type of system is much more efficient than traditional furnaces, as it only consumes the amount of energy necessary to heat your home, which results in a net savings each month on your utility bill.

Most variable-speed furnaces are condensing furnaces, although a handful of are available in non-condensing models with lower AFUE ratings. To allow a furnace to be classified as a condensing furnace, it must be 90 AFUE or higher.

Do Variable-Speed Furnaces Run Continuously?

A variable-speed furnace doesn’t run all the time. In fact, it runs at different speeds based on the temperature in your [[location]] home and the amount of energy it requires to sustain that temperature.

When too much energy is essential to maintain your chosen temperature level, the furnace will increase to a higher speed to handle the demand. This allows for more efficient heating and cooling in your home while also offering quieter operation.

Guide to Two-Stage Furnaces

Two-Stage Furnaces: What They Are and How They Work

A heating system with two settings of operating - high and low - is called a two-stage furnace. In the low stage, the furnace operates at a reduced capacity as a way to maintain a chosen temperature in your home more efficiently. During the high stage, the furnace will run full throttle to satisfy demands for increased warmth or cooling. With a two-stage furnace, you can achieve improved energy efficiency and uniform temperatures in all areas of your home.

While two-stage furnaces are extremely efficient, not all versions are condensing furnaces.

Does a Two-Stage Furnace Function All the Time?

A two-stage furnace should not run constantly. In the low stage of operation, the furnace operates at limited capacity in order to sustain a planned temperature more efficiently within your home. When a greater demand for warmth or cooling is needed, the furnace will change over to its high stage and run at full capacity. As a result, two-stage furnaces are proven to help reduce energy costs as it is not operating constantly.

Contrasting Two-Stage and Variable-Speed Furnaces

Two-stage furnaces have two stages of functionality, low and high. During the low stage, the furnace runs at reduced capacity to help maintain a desired temperature within your home. When a greater demand for warmth or cooling is necessary, the furnace will shift to its high stage and operate at peak capacity.

Variable-speed furnaces can work at several speeds in order to sustain a desired temperature more accurately within your home. Through this ability it can also help reduce energy costs as it is not constantly running on full power like many two-stage furnaces are required to do.

Differences Between One- and Two-Stage Furnaces

One-stage furnaces have a single stage of performance and operate either at full capacity or not at all. Consequently, the furnace will be on at all times in order to maintain a desired level of comfort within your home.

Two-stage furnace, in comparison, have two stages of operation, low and high. During the low stage, the furnace runs at reduced capacity in order to maintain a desired temperature more efficiently within your home. When a greater demand for warmth or cooling is needed, the furnace will change over to its high stage and operate at peak capacity.

Set Your Furnace Installation Appointment with Redhawk Heating & Air Conditioning Today

Modern furnace technology can be confusing. That’s why our Redhawk Heating & Air Conditioning professionals are here to help with a no-cost, no-pressure estimate for furnace installation. We’ll assess your home, your heating needs and your budget, and then we’ll help you find the best solution. Connect with us at 432-237-0168 to get started today!