How Furnace Efficiency Standards Will Change in 2023

March 02, 2023

Did you know more than 50% of your home’s energy costs are linked to heating and cooling? This is why it’s so important to have an energy-efficient HVAC system.

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

In 2022, President Biden recommended new energy-efficiency standards for residential gas furnaces that would significantly reduce emissions, save users money and promote sustainability.

This measure is projected to:

  • Save Americans $1.9 billion annually.
  • Cut down on 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 recommended rule would require all new gas furnaces to be 95 AFUE. This means furnaces would transform 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 Plover soon, highly energy-efficient furnaces are already available. Learn how these furnaces can save you money on your utility bills.

Guide to Condensing Furnaces

How Condensing Furnaces Work

A condensing furnace is a style of heating system that uses a secondary heat exchanger to capture wasted heat from the furnace's exhaust gases. This reduces the extent of energy wasted, improves energy efficiency and lowers carbon-monoxide emissions. It also involves less natural gas to produce the same amount of heat compared to other types of furnaces.

How Condensing Furnaces Differ from Non-Condensing Furnaces

The biggest 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.

How Long Condensing Furnaces Last

The life span of a condensing furnace depends on the brand, model and other factors. In most cases, a condensing furnace should last between 10-20 years with proper maintenance and regular service. If your heating system doesn’t have regular furnace maintenance, the unit may have a significantly shorter life span.

Why Condensing Furnaces Are More Expensive

Oftentimes, condensing furnaces are more costly than non-condensing furnaces. This is due to their increased efficiency and the extra hardware necessary to capture any wasted heat from its exhaust gases. The added energy savings can frequently balance out the cost of purchase, however, so ultimately, 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 adjust its fan speed based on the heating conditions of your [[location]] home. It operates at a slower speed until there's a temperature decrease and then ramps up to provide more heat. This type of system is much more efficient than standard furnaces, as it only utilizes the amount of energy needed 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 few 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. Rather, it runs at different speeds depending on the temperature in your [[location]] home and the amount of energy it needs 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 providing quieter operation.

Guide to Two-Stage Furnaces

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

As the name suggests, a furnace with two levels of operating (low or high) is called a two-stage furnace. During the low stage, the furnace operates at a reduced capacity in order to maintain a chosen temperature within your home more efficiently. During the high stage, the furnace will run at maximum capacity to fulfill demands for additional warmth or cooling. With a two-stage furnace, you can experience enhanced energy efficiency and uniform temperatures throughout your home.

While two-stage furnaces are exceptionally efficient, not all models are condensing furnaces.

Does a Two-Stage Furnace Function All the Time?

A two-stage furnace does not continuously run. In the low stage of operation, the furnace performs at diminished capacity in order to maintain a preferred temperature more efficiently within your home. When additional warmth or cooling is needed, the heating system will flip to its high stage and run at full capacity. As a result, two-stage furnaces are able 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 performs at reduced capacity to help uphold a desired level of comfort within your home. When additional warmth or cooling is desired, the furnace will change over to its high stage and operate at maximum capacity.

Variable-speed furnaces can run at a variety of speeds in order to uphold a precise temperature 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 functioning and operate either at full capacity or not at all. Consequently, the furnace will run constantly 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 desired, the furnace will change over to its high stage and operate at maximum capacity.

Schedule Your Furnace Installation with Point Heating & Cooling Today

It takes experience and constant education to stay knowledgeable about furnace technology advancements. That’s why our Point Heating & Cooling specialists are here to help with a complimentary, no-pressure estimate for furnace installation. We’ll assess your home, your heating requirements and your budget, and then we’ll help you find the best solution. Connect with us at 715-504-0533 to get started today!