Dec 1, 2012 ... Technology has advanced, not always for the better. During most of my lifetime, furnaces were just furnaces. The main difference was whether ...Dec 10, 2023 · A highly efficient furnace score would be above 90. How Does a Regular Furnace Operate? Before comparing an average furnace to an efficient model, you …A good option if you are considering a furnace in your attic is to get one with high efficiency. A high-efficiency furnace in your attic can help balance any decreases observed by trying to move heat against its natural direction throughout the house. High efficiency furnaces require less energy to run than traditional furnaces but can cost up ...For ultra-high-efficiency furnace models that are between the range of 97 – 98 percent AFUE rating, you may have to pay around $500 to $1000 more on the average price. Notably, these prices somewhat vary depending on your home size, the BTU output, and the required furnace size.A high-efficiency furnace is by definition one with an AFUE rating of 90 or higher. What makes it more efficient than a standard furnace is a secondary heat exchanger. It condenses the exhaust gases into a liquid, thus extracting extra heat and making it available for circulation.Anything over 90% is considered a high-efficiency furnace, and some gas-burning units can reach ratings of up to 98.5%. High-efficiency models have a slightly different design than other furnaces.Compare ENERGY STAR Certified Furnaces, find rebates, and learn more. Compare ENERGY STAR Certified Furnaces, find rebates, and learn more. ... Efficiency (AFUE) 90-91.99 (0) 92-94.99 (866) 95-96.99 (4237) greater than or equal to 97 (639) Markets. United States (5978) Canada (5421)When it comes to keeping your home warm and comfortable during the winter months, a gas furnace is an essential piece of equipment. But not all gas furnaces are created equal. When...Modern High-Efficiency Natural Gas (or LP-Fired) Furnaces use Heat Exchangers to extract additional heat from the furnace exhaust gases. This causes ...A higher AFUE rating means the furnace uses more of the heat it generates. Furnaces with an AFUE rating of 90% lose 10% of the fuel used for heating your home. Furnaces with a higher AFUE rating also tend to cost more. High-efficiency furnaces cost more to repair because they have more complex …A high-efficiency furnace is by definition one with an AFUE rating of 90 or higher. What makes it more efficient than a standard furnace is a secondary heat exchanger. It condenses the exhaust gases into a liquid, thus extracting extra heat and making it available for circulation.The condensate trap is mandatory for a high efficiency gas furnace. Since the drain is tied into the exhaust system, there is a potential for exhaust gas to ...The Carrier 59MN7 Infinity 98 Series includes a model with an astonishing 98.5 AFUE. Carrier’s premium line of furnaces also features the Infinity Touch control, allowing homeowners to control temperature, humidity, ventilation, airflow and indoor air quality in up to eight zones. Pros. Partners with Energy Star to provide high-efficiency ... Highly efficient furnaces with AFUE ratings in the mid to high nineties achieve those ratings with higher-end components like variable speed motors, “smart” control boards, and multi-stage gas valves. Currently, the minimum AFUE for a natural gas furnace is 80%, while the Carrier ® Infinity 98 gas furnace with Greenspeed ® Intelligence ... Features. Experience exceptional heating efficiency: up to 96.7% AFUE. Enjoy the ultra-quiet performance and even-temperature comfort of variable 25-speed air delivery. It's a great choice for improving cooling efficiency, or SEER2, and summertime humidity control. The gas furnaces available in North America can be put into two categories: condensing and non-condensing. Non-Condensing Furnace: A mid-efficiency furnace (80% and 90% AFUE) vents exhaust gases out of the home, typically through the roof. Condensing Furnace:A high-efficiency furnace (90% AFUE or higher) utilizes a second heat … FEMP's acquisition guidance for residential furnaces and the associated ENERGY STAR efficiency requirements apply to natural gas, propane, and oil-fired furnaces with heating capacities less than 225,000 Btu/h. Commercial furnaces (i.e., those with heating capacities of 225,000 Btu/h or greater) and weatherized furnaces are excluded. This PDF document from NREL provides detailed information on the installation, operation, and maintenance of high efficiency furnaces for residential buildings. It covers topics such as combustion safety, duct sealing, air flow, venting, and controls. It also includes case studies, best practices, and troubleshooting tips for high efficiency furnace systems.Apr 17, 2021 · A high-efficiency furnace is by definition one with an AFUE rating of 90 or higher. What makes it more efficient than a standard furnace is a secondary heat …Lennox® gas and oil furnaces promise unsurpassed comfort. Innovative design and technology automatically adjusts outputs in precise and minute increments to hold temperatures exactly where you want them. As quiet as they are efficient, Lennox furnaces combine advanced technology, engineering and sound-absorbing insulation to … Our heating and cooling system replacement rebates increase with the efficiency of the unit you purchase. We do this to help our customers offset the higher cost of more efficient units that will reduce your energy use. For AC units, rebates start at 15 SEER-rated units. The minimum AFUE rating for a furnace or boiler to qualify is 95% efficiency. Find the best furnace for your home from Carrier, a leading HVAC brand. Compare different models based on efficiency, cost, comfort, humidity control and more. Our heating and cooling system replacement rebates increase with the efficiency of the unit you purchase. We do this to help our customers offset the higher cost of more efficient units that will reduce your energy use. For AC units, rebates start at 15 SEER-rated units. The minimum AFUE rating for a furnace or boiler to qualify is 95% efficiency. Pro Tip: There is a common misconception that high furnace efficiency (AFUE) is equivalent to product quality, but this is not necessarily true. An AFUE of over 90% simply means that the furnace uses a secondary heat exchanger to collect more heat when burning natural gas. The top furnace brands make both 80% AFUE and 90-99% …Jan 16, 2023 · High-efficiency furnaces convert more of the gas energy into heat and have AFUEs of 90%-99%. This means that high-efficiency furnaces require less fuel to heat …High efficiency furnace models operate at AFUE ratings of 90% or higher, meaning they will utilize at least 90% of the energy from the fuel they burn for heating your home. The initial costs of high efficiency furnaces can be high, but this cost is often offset by utility bill savings throughout the year.Items 1 - 15 of 196 ... These furnaces utilize a three-position valve to offer three settings - on, partially closed, and closed. They are much more efficient than ...Feb 1, 2024 · Editors’ Choice: The Carrier Energy Star–certified Infinity 98 gas furnace (available at Carrier) provides users with long-lasting heat and fuel efficiency of up to 98.5 percent. Currently ... Sep 1, 2021 · The higher the number, the more efficient it is. To be considered high efficiency, the rating needs to be between 90 and 97%. The best high-efficiency furnaces are up to 97, 98% efficient, whereas a standard efficiency is 80%. In an 80% furnace, 80% of the heat is being used, while 20% is being exhausted as waste. Furnace filters have an arrow that point to installation towards the evaporator coil, fan and blower motor located inside the air handler. If there are no arrows on the filter, ins... The minimum allowed rating for any furnace in the United States is 80 percent AFUE. If you are interested in a high-efficiency model, condensing furnaces that utilize a secondary heat exchanger for added fuel ecomony achieve ratings in the mid-to-high 90% AFUE range. Carrier’s top performing Infinity® 98 gas furnace with Greenspeed ... Air sealing: Up to $1,300 for achieved air sealing. Windows: Up to $325 for each window, door, or skylight you replace. Furnaces: $250 to upgrade to a high-efficiency condensing natural gas furnace, as long as you complete two other upgrades. Space and water heating: Up to $7,800 for heat pumps water heaters.Feb 22, 2024 · A typical gas furnace installation takes 10 to 15 hours and may involve updating the forced air system, installing ductwork or removing and disposing of an old furnace. Removal can cost $60 to ... Wired magazine's How To Wiki has a short and sweet article on how to make your emails more efficient with a defined structure.Jan 24, 2024 · Homeowners can get a tax credit worth 30 percent of the cost to buy and install qualifying heat pumps, up to $2,000 a year. That tax credit also applies to modifications needed to support the heat ... The minimum allowed rating for any furnace in the United States is 80 percent AFUE. If you are interested in a high-efficiency model, condensing furnaces that utilize a secondary heat exchanger for added fuel ecomony achieve ratings in the mid-to-high 90% AFUE range. Carrier’s top performing Infinity® 98 gas furnace with Greenspeed ... Overview. The Performance 96 gas furnace is a two stage furnace, with a variable-speed blower motor and will run in low stage up to 90% of the time. Longer, low-stage run times give you better energy efficiency, better temperature control and increased comfort. It also assures you quieter performance.Oct 16, 2023 · 5 min. Heating. Updated: October 16, 2023. If it’s time for a new furnace, you might be wondering whether today’s furnaces are more efficient than the one you’re …Furnace AFUE is an energy efficiency rating that measures how efficiently furnaces and boilers can convert fuel to energy. Learn about how a good AFUE furnace rating can affect your heating bills. High-efficiency units are in the 90 – 98.5% AFUE and include features like two heat exchangers and more.Newer furnaces operate up to 50% more efficiently than older units. You’ll save money and energy after replacing your unit. If you are a DTE residential natural gas customer, you are eligible for furnace and thermostat replacement rebates. If you are a DTE residential electric customer, you are eligible to replace your air source or ground ...The cost of running an electric furnace varies depending on size of home, the type of furnace, cost of electricity and weather conditions. Generally, an electric furnace runs from ...A high-efficiency furnace is one with a secondary heat exchanger designed to extract the maximum amount of heat from the natural gas or propane being burned. When the burner is on, combustion gases collect in the primary heat exchanger, and if the furnace was a standard one, they would be vented outside.Clearly, a new furnace is a substantial investment. On average, the entire cost for replacing a furnace including materials, equipment and labor is $5,500. According to HomeAdvisor, the price range is typically between $2,572 and $6,221, depending on the type and size of the furnace. Here’s a breakdown of furnace replacement …Jan 16, 2023 · High-efficiency furnaces convert more of the gas energy into heat and have AFUEs of 90%-99%. This means that high-efficiency furnaces require less fuel to heat …High efficiency furnace models operate at AFUE ratings of 90% or higher, meaning they will utilize at least 90% of the energy from the fuel they burn for heating your home. The initial costs of high efficiency furnaces can be high, but this cost is often offset by utility bill savings throughout the year.FEMP's acquisition guidance for residential furnaces and the associated ENERGY STAR efficiency requirements apply to natural gas, propane, and oil-fired furnaces with heating capacities less than 225,000 Btu/h. Commercial furnaces (i.e., those with heating capacities of 225,000 Btu/h or greater) and weatherized furnaces are excluded.Apr 17, 2021 · A high-efficiency furnace is by definition one with an AFUE rating of 90 or higher. What makes it more efficient than a standard furnace is a secondary heat …Oct 25, 2022 ... High-efficiency gas furnaces can slash 10%-20% from your energy bill. But your actual savings, if any, depend on other factors too.Dec 1, 2012 ... Technology has advanced, not always for the better. During most of my lifetime, furnaces were just furnaces. The main difference was whether ... High Efficiency Home Furnaces. You can compare furnace efficiency among models from different manufacturers using the furnace AFUE rating -- the higher the AFUE, the better the efficiency. Current high efficiency furnaces can be rated up to 98.5% AFUE, which can reduce utility costs over the life of the furnace. In many cases, our Carrier high ... Dec 1, 2012 ... Technology has advanced, not always for the better. During most of my lifetime, furnaces were just furnaces. The main difference was whether ...Gas Furnaces. ENERGY STAR certified gas furnaces with AFUE > 97% are eligible. Note: Under the tax code, eligible equipment must “meet or exceed the highest efficiency tier (not including any advanced tier) established by the Consortium for Energy Efficiency which is in effect as of the beginning of the calendar year.” The eligibility ...When it comes to keeping your home warm and comfortable during the colder months, a reliable furnace is essential. However, even the most dependable systems can run into problems f...Feb 22, 2024 · A typical gas furnace installation takes 10 to 15 hours and may involve updating the forced air system, installing ductwork or removing and disposing of an old furnace. Removal can cost $60 to ... Feb 4, 2022 · Roof ventilation means letting the gas furnace remove combustion byproducts from the house through the roof. There are two main ways to vent a high-efficiency furnace through the roof – via a direct vent and through non-direct vents. Direct vents comprise two pipes, both of which lead outside the house. The gas furnaces available in North America can be put into two categories: condensing and non-condensing. Non-Condensing Furnace: A mid-efficiency furnace (80% and 90% AFUE) vents exhaust gases out of the home, typically through the roof. Condensing Furnace:A high-efficiency furnace (90% AFUE or higher) utilizes a second heat …Feb 15, 2024 · Rating: 4.5/5.0Average Price: $5,217. Carrier, a leader in heating and cooling since 1902, offers a range of efficient furnaces across three lines: The premium Infinity series (up to 98.5% AFUE) The mid-range Performance series (up to 96.5% AFUE) The budget-friendly Comfort series (above 80% AFUE) The Most Efficient Furnace: Trane XC95M Gas Furnace. The Trane XC95M gas furnace is a paragon of efficiency with an impressive AFUE rating of 97.3 percent. Such energy efficiency can … FEMP's acquisition guidance for residential furnaces and the associated ENERGY STAR efficiency requirements apply to natural gas, propane, and oil-fired furnaces with heating capacities less than 225,000 Btu/h. Commercial furnaces (i.e., those with heating capacities of 225,000 Btu/h or greater) and weatherized furnaces are excluded. The reduction of high energy bills for those who are using old, and out-dated furnaces is a priority. It’s possible to do so through the use of high-efficiency forced-hot-air furna...Editors’ Choice: The Carrier Energy Star–certified Infinity 98 gas furnace (available at Carrier) provides users with long-lasting heat and fuel efficiency of up to 98.5 percent. Currently ...Get 2024 High Efficiency Gas Furnace price options and installation cost ranges. Free, online High Efficiency Gas Furnace cost guide breaks down fair prices in your area. Input project size, product quality and labor type to get High Efficiency Gas Furnace material pricing and installation cost estimate examples.A standard efficiency furnace provides 80% annual fuel utilization efficiency (AFUE). In this type of furnace, 20% of the energy produced by natural gas is expelled as exhaust. High-efficiency furnaces offer 90% or more AFUE. These days, 95% AFUE is a common rating among new gas-powered furnaces. So a 95% furnace is more efficient …In comparison running 85% efficient gas furnace in 1650 SF home, including gas, is roughly $125 per month. Huge difference. ... BTU for heating (the furnace just turns on short time), but most of the furnace on the market all start with pretty high BTU. There are two stages furnace options, but heat pump is also variable so difficult …Compare free estimates from our trusted Certified local contractor partners. SERVICING & REPAIR NEW SYSTEM. We help Canadians buy new furnaces and air conditioners with confidence. Find HVAC contractors in your area, compare prices, and get quotes fast.Jan 30, 2024 ... Condensing furnaces prevent excess heat from being wasted by circulating exhaust gases through another heat exchanger. The secondary heat ...Stay warm and cozy inside with a furnace that is energy efficient and durable. American Standard gas furnaces are built to a higher standard so they can effectively burn a fuel source, like propane or natural gas, to produce heat for your home from scratch. Furnaces are great for homeowners who experience cold winters with consistently low ...High-efficiency furnace venting, on the other hand, is a bit more complicated. It requires PVC pipes that go through the sidewall for the venting and additional special drainage for the water. Finally, a high-efficiency system has two heat exchangers, unlike a standard furnace’s one.Feb 23, 2022 · A furnace with a 80 to 83 percent AFUE efficiency rating is considered a mid-range efficiency furnace with 80 percent being the minimum allowed by the Department of Energy. High efficiency furnaces are typically between a 90 and 98 percent AFUE rating and include features like two heat exchangers, variable speed fans, sealed combustion chamber ... Shop from our huge selection of 60,000 BTU Furnaces below. If you're looking for a new gas furnace with the heating power you need; look no further than our selection from brands like Goodman Furnaces and AirQuest by Carrier. We have a wide assortment of high-efficiency 60,000 BTU furnaces to fit your home’s size, …Apr 21, 2022 · High Efficiency Furnace Buying Guide. High Efficiency Gas/Propane Furnaces. High Efficiency Gas/Propane Furnace List & Reviews. #1 Lennox SLP98V. #2 Carrier Infinity 98 59MN7. #3 Bryant Evolution 987M. #4 Heil Ion G97CMN & QuietComfort Deluxe 98. #5 Goodman GMVM97. #6 Rheem Prestige R98V. Stay warm and cozy inside with a furnace that is energy efficient and durable. American Standard gas furnaces are built to a higher standard so they can effectively burn a fuel source, like propane or natural gas, to produce heat for your home from scratch. Furnaces are great for homeowners who experience cold winters with consistently low ... Highly efficient furnaces with AFUE ratings in the mid to high nineties achieve those ratings with higher-end components like variable speed motors, “smart” control boards, and multi-stage gas valves. Currently, the minimum AFUE for a natural gas furnace is 80%, while the Carrier ® Infinity 98 gas furnace with Greenspeed ® Intelligence ... The first one has 80% efficiency (80 AFUE) and the second one has 97% efficiency (97 AFUE). If we run them for 720 hours per season, with an average price of residential natural gas (source: statista.com, 2019 prices) $10.60 per 1,000 cubic feet, we get: 80 AFUE gas furnace: 86.79 thousand cubic feet, which costs $919.97/season.Last Udated: January 22, 2024. Amana is one of the top furnace brands that offer competitive prices but offer high efficiency and the best warranty coverage. Their gas furnaces models vary in efficiency rating from 80% to 98% AFUE. This Amana furnace review provides specifications, features, and prices from each model to help you …In addition to fitting for local utility discounts and the U.S. federal tax credit for high-efficiency gas furnaces, both models also may be used for created housing weatherization programs. Intertherm and Miller M7 95.1% gas furnace. The M7 is the only 95.1% AFUE furnace that meets a standard manufactured housing footprint for new development.Venting for high-efficiency gas furnaces – Materials. Due to the condensing nature of a high-efficiency furnace, its venting must be made of a material that is resistant to corrosion. In a great majority of cases, plastic piping is used to vent high-efficiency equipment. It is classified as “Type BH” venting.A high-efficiency gas furnace costs about 30% to 40% more than an old or traditional gas furnace. However, this shouldn't stop you from buying. Because in the ...Apr 29, 2022 · A high efficiency furnace is any furnace that has an AFUE rating of 90% or higher. Terminology Tip: AFUE is an acronym for Annual Fuel Utilization Efficiency. The way that the AFUE is determined is by measuring the heat output of a gas furnace compared to the amount of fuel that it burns during that time. High Efficiency Home Furnaces You can compare furnace efficiency among models from different manufacturers using the furnace AFUE rating -- the higher the AFUE, the better the efficiency. Current high efficiency furnaces can be rated up to 98.5% AFUE, which can reduce utility costs over the life of the furnace. The gas flows at only one rate: high. Single-stage gas furnaces operate at around 80% AFUE and are best for milder climates. Two-Stage Gas Furnaces: A two-stage gas furnace can adjust the flow of gas from low or high for better efficiency. A home’s thermostat communicates with the furnace to regulate temperature.Most new homes built today are being outfitted with high-efficiency furnaces. However, many homes older than ten years or more still rely on old-school furnaces ...High Efficiency Furnace Buying Guide. High Efficiency Gas/Propane Furnaces. High Efficiency Gas/Propane Furnace List & Reviews. #1 Lennox SLP98V. #2 Carrier Infinity 98 59MN7. #3 Bryant Evolution 987M. #4 Heil Ion G97CMN & QuietComfort Deluxe 98. #5 Goodman GMVM97. #6 Rheem Prestige R98V.A 95% AFUE-rated furnace has 95% efficient heating. That means the furnace converts 95% of its fuel into heat for your home or business, while the remaining 5% escapes. For this reason, the highest possible AFUE rating is desirable, resulting in less waste. Minimizing energy waste reduces your monthly bills and contributes to a cleaner …GM9S92. ★★★★★ ★★★★★. 4.5. Up to 92% AFUE Upflow Multi-Position Installation. Product Overview. Product Reviews. Find the best selection of Up to 98% AFUE Gas Furnaces at Goodman - HVAC products designed, engineered and assembled in the USA! The first one has 80% efficiency (80 AFUE) and the second one has 97% efficiency (97 AFUE). If we run them for 720 hours per season, with an average price of residential natural gas (source: statista.com, 2019 prices) $10.60 per 1,000 cubic feet, we get: 80 AFUE gas furnace: 86.79 thousand cubic feet, which costs $919.97/season. Higher AFUE ratings reflect higher efficiency. 2 Purchase and installation of EcoNet ® WiFi Kit and EcoNet Smart Thermostat required; WiFi broadband Internet connection required; must be paired with EcoNet Enabled heat pump or air conditioner. 3 Testing showed, on average, a 20% reduction in sound when compared to previous Rheem gas …The concept of the “high-efficiency furnace” in popular consciousness dates back to the 1980s. That’s when the National Appliance Energy Conservation Act of 1987 required all new furnaces be 78 percent efficient, meaning 78 percent of the heat went into the home. Before then, many furnaces released …High-Efficiency Furnaces. If your furnace earned the Energy Star label, this means it boasts a 90% to 98.5% AFUE rating. A sealed combustion chamber is a key factor in these systems, ensuring the warm air stays in your home and the dangerous exhaust goes outside. The furnace may include a more advanced heat exchanger, …However, these high-efficiency furnaces come at a price. Generally, high-efficiency models are more expensive than lower-efficiency furnaces. For a moderate-efficiency furnace, expect to pay between $4,500 and $7,000, while the most efficient furnaces often cost between $6,000 and $10,000 — or more. High Efficiency Home Furnaces. You can compare furnace efficiency among models from different manufacturers using the furnace AFUE rating -- the higher the AFUE, the better the efficiency. Current high efficiency furnaces can be rated up to 98.5% AFUE, which can reduce utility costs over the life of the furnace. In many cases, our Carrier high ...
High-efficiency furnaces have an annual fuel utilization efficiency (AFUE) rating of 96% or higher. Mid-efficiency furnaces have an AFUE rating of 90% to 95%, and …. Salary.com reviews
The condensate trap is mandatory for a high efficiency gas furnace. Since the drain is tied into the exhaust system, there is a potential for exhaust gas to ...A higher AFUE rating means the furnace uses more of the heat it generates. Furnaces with an AFUE rating of 90% lose 10% of the fuel used for heating your home. Furnaces with a higher AFUE rating also tend to cost more. High-efficiency furnaces cost more to repair because they have more complex …The gas furnaces available in North America can be put into two categories: condensing and non-condensing. Non-Condensing Furnace: A mid-efficiency furnace (80% and 90% AFUE) vents exhaust gases out of the home, typically through the roof. Condensing Furnace:A high-efficiency furnace (90% AFUE or higher) utilizes a second heat …Apr 17, 2021 · A high-efficiency furnace is by definition one with an AFUE rating of 90 or higher. What makes it more efficient than a standard furnace is a secondary heat exchanger. It condenses the exhaust gases into a liquid, thus extracting extra heat and making it available for circulation. Jan 30, 2024 ... Condensing furnaces prevent excess heat from being wasted by circulating exhaust gases through another heat exchanger. The secondary heat ...Oct 25, 2022 ... High-efficiency gas furnaces can slash 10%-20% from your energy bill. But your actual savings, if any, depend on other factors too.Nov 23, 2021 · The Carrier 59MN7 Infinity 98 Series includes a model with an astonishing 98.5 AFUE. Carrier’s premium line of furnaces also features the Infinity Touch control, allowing homeowners to control temperature, humidity, ventilation, airflow and indoor air quality in up to eight zones. Pros. Partners with Energy Star to provide high-efficiency ... Carrier High Efficiency Furnaces. How do you know which high efficiency furnace to choose? Look for the AFUE (annual fuel utilization efficiency) ratings.ComfortMaker furnaces are designed to provide comfortable temperatures in your home or business while they offer cost-efficient energy savings. Check out this guide to ComfortMaker...While high-efficiency furnaces typically have higher upfront and installation costs, they are usually less noisy and produce better air quality. They are easy to pair with thermostats and give you greater temperature control. You’d save approximately 15% on heating costs by replacing an 80% AFUE furnace with a …High-Efficiency Furnaces. If your furnace earned the Energy Star label, this means it boasts a 90% to 98.5% AFUE rating. A sealed combustion chamber is a key factor in these systems, ensuring the warm air stays in your home and the dangerous exhaust goes outside. The furnace may include a more advanced heat exchanger, …High-efficiency furnaces are mostly recommended for very cold climates. Homes in moderate climates may do better with a standard-efficiency unit. Furnace Efficiency; Average Costs (Materials Only) 80% - 89%: $1,700 - $2,500: 90% - 95%: $3,500 - $5,000: Talk to local pros to get quotes for your oil furnace …Feb 1, 2024 · High efficiency furnaces deliver on their promises, providing more consistent heat while using less energy. This means lower bills for you and less strain on the …AC9S96. High-Efficiency Single-Stage Multi-Speed Gas Furnace. up to 96% AFUE. Heavy-Duty Aluminized-Steel Tubular Heat Exchanger. Efficient and Quiet Multi-Speed ECM Blower Motor. Learn More.Mid-efficiency furnaces typically offer an AFUE rating between 80 and 85%, while high-efficiency furnaces have an AFUE rating between 90 and 97%. Furnaces made prior to the 1992 Energy Policy Act, which required energy-efficient standards for appliances, warm-air furnaces, and air conditioning units, ….
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