Where you aware that more than 50% of your home’s energy costs are needed for your heating and cooling? That’s why it’s so important to have an energy-efficient HVAC system.

Furnace efficiency standards were last updated to an Annual Fuel Utilization Efficiency (AFUE) rating of 80% in 2015. This rating system calculates how effective your furnace is at turning natural gas into heat. An AFUE rating of 80% means your furnace will waste about 20% of the fuel it uses while producing heat.

In 2022, the U.S. government revealed new energy-efficiency standards for residential gas furnaces that would significantly lower emissions, save money and promote sustainability.

The updated standards are anticipated to:

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

Starting in 2029, the proposed rule would demand all new gas furnaces to feature AFUE ratings of 95%. This means furnaces would turn nearly 100% of the gas into usable heat.

So what does all of this mean for your existing furnace in 2023? Currently, next to nothing, as the proposed rule won't go into effect until 2029 at the earliest and does not affect furnaces that are already in use.

But if you need furnace replacement in soon, highly energy-efficient furnaces are now available. Find out how these furnaces can lower your monthly energy bills.

Guide to Condensing Furnaces

How Condensing Furnaces Work

A condensing furnace is a kind of heating system that uses a secondary heat exchanger to collect wasted heat from the furnace's exhaust gases. This decreases the extent of energy wasted, improves energy efficiency and lowers CO2 emissions. It also involves less natural gas to create the same volume of heat when 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 condensing models use a secondary heat exchanger to collect any wasted heat from its exhaust gases, while the other does not.

Expected Longevity of a Condensing Furnace

The life span of a condensing furnace will depend on the brand, model and other factors. Usually, a condensing furnace is likely to last between 10-20 years with sufficient maintenance and regular service. If your heating system doesn’t have regular furnace maintenance, the unit may not last as long.

Why Condensing Furnaces Require a Higher Investment

Generally, condensing furnaces are more require a large upfront cost than non-condensing furnaces. This is because of their increased efficiency and the extra hardware necessary to capture any wasted heat from its exhaust gases. However, the added energy savings can often recoup the price of purchase. So long term, it may be worthwhile investing in a condensing furnace.

Guide to Variable-Speed Furnaces

Variable-Speed Furnaces: What You Need to Know

A variable-speed furnace can adjust its fan speed to minimize the energy necessary to satisfy the heating needs of your home. It operates at a slower speed until it detects a drop in temperature and then ramps up to produce more heat. This [precise fan is much more efficient than standard, single-speed furnaces, as it only consumes the minimum amount of energy required to heat your home, saving you money in the long run.

Many variable-speed furnaces are condensing furnaces, although a handful are available in non-condensing models with lower AFUE ratings. If a manufacturer wants a furnace to be classified as a condensing furnace, it must offer an AFUE rating of 90% or higher.

Do Variable-Speed Furnaces Run All the Time?

A variable-speed furnace doesn’t operate all the time. Rather, it runs at different speeds depending on the temperature in your Milwaukee home as well as the amount of energy it requires to maintain that temperature.

When sufficient energy is necessary to maintain your set temperature level, the furnace will shift to a higher speed to manage the higher demand. Precise fan speeds offer more efficient heating in your home while also providing quieter operation.

Guide to Two-Stage Furnaces

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

A two-stage furnace is a type of heating system that utilizes two different stages of operation — high and low. During the low stage, the furnace operates at a reduced capacity as a way to maintain the desired temperature for your home more efficiently. During the high stage, the furnace will instead run at maximum capacity to meet demands for more heat. With a two-stage furnace, you can maintain greater energy efficiency and balanced temperatures all across your home.

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

Does a Two-Stage Furnace Run All the Time?

A two-stage furnace does not stay on indefinitely. In the low stage of operation, the furnace operates at reduced capacity in order to maintain a planned temperature more efficiently within your home. When more energy is needed to reach the set temperature, the heating system shifts to its high stage and operates at full capacity. Because of this, two-stage furnaces are powerful enough to help reduce energy costs without operating continuously.

Contrasting Two-Stage and Variable-Speed Furnaces

Two-stage furnaces have two stages of functionality, low and high. During the low stage, the furnace works at reduced capacity as a way to sustain a desired temperature within your home. When additional warmth or cooling is needed, the furnace will change over to its high stage and operate at peak capacity.

Variable-speed furnaces, meanwhile, can operate at a variety of speeds in order to uphold a comfortable temperature at home. With more options for temperature settings, you also have more flexibility for heating you home and can enjoy greater savings on energy bills.

Differences Between One- and Two-Stage Furnaces

One-stage furnaces have a single stage of operation and operate either at full capacity or not at all. This translates to higher energy bills because the furnace runs constantly in order to maintain a desired level of comfort within your home.

Two-stage furnaces, on the other hand, have two stages of operation, low and high. During the low stage, the furnace runs at lower capacity in order to maintain the desired temperature more efficiently. When a greater demand for warmth or cooling is necessary, the furnace will shift to its high stage and operate at maximum capacity.

Schedule Your Furnace Installation with Done Right Air Today

Modern furnace technology can be confusing. That’s why Done Right Air experts are here to help with a free, no-pressure estimate for furnace installation. We’ll assess your home, your heating needs and your budget before helping you find the best solution. Contact us at 414-207-4034 to get started today!