100 000 btu furnace square footage

Fox Business Outlook: Costco using some of its savings from GOP tax reform bill to raise their minimum wage to $14 an hour. 

It is approximately the energy needed to heat one pound of water by 1 degree Fahrenheit. 5' is 2485, minus the windows is 2185 square feet. 93 efficiency 93,000 Btu actual output. A furnace’s AFUE (annual fuel utilization efficiency) rating reflects how efficiently it converts the fuel’s energy into heat. 5 to 3 ton. Zone 3: 90,000 BTUs. 85*2185/8=23215 BTU/hr. How many degrees in Fahrenheit is 10, 000 BTUs? You calculate furnace size by multiplying the square footage of the house by the heating factor – a value based on climate factors expressed in BTUs. And when you know your climate zone, you can approximate the BTU heating capacity required for your work/home space. A basic rule of thumb for furnace size calculation is that it takes 30 BTUs for every square foot of house. See our list of Ruud furnace prices by model listed You calculate furnace size by multiplying the square footage of the house by the heating factor – a value based on climate factors expressed in BTUs. ft. In ideal climate conditions, this 100,000 BTU furnace is usually used to heat a small house. Want to get a detailed breakdown of these Your home’s square footage and local climate will determine what size furnace you need. Nov 30, 2018 · A 100,000 BTU furnace with an 80% efficiency rating or higher will produce the 80,000 BTUs necessary and then some. Dec 31, 2023 · Trane’s equipment is among the highest-quality in the industry – but it’s also one of the most expensive. The equation is: Input in BTUs x % AFUE = Output BTUs. AC with Gas Heat. FREE delivery Jun 3 - 5. On the other end of the spectrum, let's say that you live in an older 1,500-square-foot home in Minneapolis (Zone 5 The 100,000 BTU TM9E series 95% efficiency multi-positional gas furnaces have a 33 in. Out of all of our HVAC products, the furnace is arguably one of the most important. If your split system includes central air and a gas furnace, the furnace size will range from 45,000 to 135,000 BTU. It's also Energy Star Qualified, and it features a variable-speed blower motor and communicating technology to Jun 12, 2023 · The ACiQ G96VTN1002120A has an input of 100,000 BTU. Oct 17, 2022 · The square footage of your building is a primary factor in equipment sizing and BTU rating. Based on these figures, a 2,000 sq. 3 to 3. Replacement units should match or exceed the old furnace’s BTU heating capacity. How many CFM does a 100000 BTU furnace need? We have a 100,000 Btu input draft furnace. For example, a furnace with an 80% AFUE rating converts 80% of its energy to heat. Furnace capacities are measured in British Thermal Units (BTUs). On average homeowners should expect a standard efficiency Ruud furnace like the Ruud Ultra U802v with an 80% AFUE rating to price out at $925 for the HVAC unit alone and $2,735 in total installation costs after labor. Nov 15, 2022 · To determine the number of BTUs per square foot that you need to heat a room, simply multiply the square footage by 20 BTUs per square foot. 2. This is calculated by taking 100,000 BTU’s times the efficiency of 97%. A 2,000-square-foot house would require 60,000 BTUs at the lower figure Jun 11, 2021 · You will need a furnace with BTUs in the range of 70,000 to 120,000 BTUs. 1,800 – 2,500 sq ft. $4,000 – $6,000 You generally need 30 to 60 BTUs per square foot for a standard-efficiency furnace. 3 SEER2 Single Stage Air Conditioner GSXN402410 and 80,000 BTU 96% AFUE Multi-Speed Gas Furnace GM9S960803BN Upflow System with CAPTA2422B4. Produces up to 100,000 BTU/hour to keep you warm and comfortable on cold days. 00. A furnace of this size costs $2,600 to $4,200. Zone 4 (cool) 45-50 BTU/sq. A typical furnace is rated at 100,000 or 80,000 BTU per hour, but furnaces might be as small as 40,000 or as large as more than 200,000 BTU. 00! Buy in monthly payments with Affirm on orders over $50. Finally, a 3,000-square-foot house needs May 26, 2017 · 2. For example, a 2,000 square foot would need a gas furnace with a 70,000 BTU heating output. On the high end, a high-efficiency gas furnace to heat a 4,000-square May 6, 2024 · Carrier Furnace Installation Costs. Zone 4 – 45 to 50 BTUs. For a 1,500 sq ft home, you would need about 45,000 BTU heat pump. On the low end, they replace an electric furnace to heat a 1,000-square-foot home for $895. The size furnace you need for a 2,000 square foot home for each zone is below: Zone 1: 70,000 BTUs. For instance, in the middle part (zone 3 or 4), a 100,000-112. 2500 to 3500 sq ft. AVERAGE SQUARE AND CUBIC FOOTAGE. Jan 4, 2024 · This audit will provide an estimate for the HVAC tonnage required for a given space. Convert to LP by purchasing model# M53080 internet# 202812676. However, there are a few other things to take into consideration before you apply this formula to your own home. If you live in a 3,000-square-foot home, your oil furnace might cost between $7,085 and $9,175. So, if you have a 1,000 square foot house, you need a furnace that has a 30,000 BTU output. A 3 ton AC unit can cool a space by 36,000 BTUs per hour, accommodating most moderately sized homes, while a 4 or 5 ton AC unit may be required for larger homes. 1,200 – 1,500 sq ft. Cooling Only. Sound Pressure Level dBA 50 at 10 ft and 48 at 15 ft. Jan 13, 2021 · If the temperature range is 40 degrees, then you can expect to heat 1,200 square feet, and if it’s a 60-degree difference, then you expect to heat 800 square feet. Zone 4: 100,000 BTUs. For example, if your room is around 2,000 square feet, you’d require a system with a BTU rating of 4. May 23, 2024 · A BTU when talking about furnaces is the measurement of heat output that your furnace is capable of producing for your home based on square footage of your home. In the cold north, 5,000 BTU will be enough to heat 80 sq ft, and in the hot south, you will be able to heat a 170 sq ft room with such a space heater. 97% AFUE If the same 100,000 BTU furnace has an efficiency rating of 93% it will produce: 100,000 Btu input X . May 29, 2024 · The manuals supplied by manufacturers list both for any given furnace, but if you browse their websites, most furnaces are listed by input – amount of heat created – and you have to do the math to get output. Homes before 1980 need 50 BTU per square foot. Air-boost timer automatically adjusts the air intake control making startup and reloading easier. 3 percent. Feb 10, 2023 · Climate zone heating factor: 50 to 60 BTUs per square foot. Average. A high-efficiency furnace costs around $3,000 to $5,000 to install and vents through a PVC pipe in the wall. Goodman 3 Ton 13. $3,400 – $5,400. Oregon has regions that fall under zones 3, 4, and 5. To calculate your furnace’s required Bty, use the following formula: Btu = (Square Footage × Heating Load Factor) + (Number of People × 600) The Zone 1 is the hottest climate and zone 5 is the coolest. Zone 1 – 30 to 35 BTUs. 90,000 to 100,000 BTU/hr. Apr 8, 2019 · Measure rooms throughout your home, and calculate the square footage. * The above square footages do not include the area of the basement. Phone:866-862-8922407-951-8908. Zone 5 (cold) 50-60 BTU/sq. Winter Park FL. Q: What size furnace do I need for a 2000 sq ft home? A 70,000 to 110,000 BTU furnace. Here’s the calculation: Mini-Split Heat Pump Size (1,500 sq ft) = 1,500 sq ft * 30 BTU per sq ft = 45,000 BTU. Nov 11, 2023 · In general, you’ll need between 30 and 45 BTUs per square foot, but that number depends on other factors, as well. Worker there approaches asks what i The GMES921005CN Goodman gas furnace is 100,000 BTU’s. Divide the rated furnace input by 10,000 Btu to find required airflow. 80,000 to 90,000 BTU/hr. For a 2,000 square foot home you will want to install a Carrier furnace with 100,000 BTU capability which on average would cost around $3,980 to install. You calculate furnace size by multiplying the square footage of the house by the heating factor – a value based on climate factors expressed in BTUs. . C. Jun 13, 2024 · A furnace for a 2,000-square-foot house should produce about 80,000 BTUs of heat. Let’s convert that to tons and kWs; that’s 3. Nov 30, 2023 · View all posts by Leo Bender →. 120,000. 10,000 square foot = 450,000 BTU; 20,000 square feet = 900,000 BTU If the same 100,000 BTU furnace has an efficiency rating of 93% it will produce: 100,000 Btu input X . 18,000 to 24,000 BTU = 2 ton heat pump. A 2,000-square-foot house would require 60,000 BTUs at the lower figure Apr 25, 2022 · If you want to be sure your indoor climate will be comfortable all year, then choose a heat pump size near the upper end of the range. 412 BTU per hour. Your local Carrier dealer is experienced at calculating furnace size and will do what’s called a “load calculation” to determine the size most appropriate for your home. 1 watt is approximately 3. Apr 29, 2024 · A 60,000- to 100,000-BTU propane gas furnace costs $1,900 to $6,200 installed to heat the average 2,000 square-foot home. Sep 17, 2023 · Call it an 8000 heating degree day climate. Homes after 1980 and before 2005 need 45 BTU per square foot. Zone 3 (moderate) 40-45 BTU/sq. MBH is one thousand BTUs per hour, so you’re still working with the same measurement: 60 MBH is 60,000 BTUs. Here are heat pump sizes in tons and BTUs, so you’ll know what size to select. A third factor to consider is furnace efficiency. Rating: 25 review (s) $3,274. $3,85000. Low-profile design great for tight spaces. 1,500 – 1,800 sq ft. 000 BTU furnace size will be sufficient for 2,500 square feet of space. 100,000 BTU. Sep 17, 2022 · A smaller furnace will have a smaller BTU capacity, such as 40,000 BTUs per hour, and be suitable for a smaller space. Per zone, these are the number of recommended BTUs per square foot. Rheem takes great pride in engineering their equipment with ease of operation, sleek design and any future service in mind. That cost comes from the price of the furnace itself ($2800 to $6750 depending on fuel option, size, brand, and efficiency) and the installation cost (about $150-$500 per hour). 5 Ton 13. A 60,000 to 80,000 BTU furnace. Zone 5: 120,000 BTUs. 1 BTU = 1,055 joules, 252 calories, 0. $3,62989. The ideal oil furnace size depends on the home's square footage, outdoor temperatures, and insulation. Aug 1, 2023 · An electric furnace is cheaper to install than a gas furnace. Such energy efficiency can potentially lead to annual energy cost savings of up to 38 percent *. Zone 2: 80,000 BTUs. 85° temperature difference over a 1050 square foot attic, divided by R-15 = 5950 BTU/hr. When making your calculations, you may need to round up or down to the nearest furnace size. Seeing a pattern here? In the example above, using an 80% efficient furnace, the 2000 square foot home above would require a 100,000 BTU input furnace which will produce the necessary 80,000 BTU's output Highlights. HVAC contractors typically allocate about 20 BTUs for each square foot of space. Q: what size furnace do i need for a 1500 square foot home. tall cabinet and are designed for installation in up flow, downflow and horizontal applications. Here is a general guide for home size and number of BTUs needed: Home Size. I was At a local plumbing house for something unrelated and they have furnaces on display. A factor in selection is the 120,000 BTU furnace square footage capacity, as is cubic footage, where ceiling height and adjacent open areas are taken into account. Dec 6, 2021 · Evaluate your sun exposure and how much coverage you receive from trees and surrounding components. 5 ton heat pump. Jun 30, 2019 · Average BTU Ratings. In harsher climates such as the Dakotas, up to 45 BTUs per square foot are appropriate. Oil Furnaces – $3,000 – $5,500+. 55,000 BTUs. 8am - 10pm EST. Choosing the proper size equipment, a process known as “sizing” your HVAC system, is Carrier Furnaces. Typical residential gas furnaces will be available in various sizes between 44,000 BTU/h and up to 120,000 BTU/h. A year when the house was built. For example, a 2,000 square foot house in a region that has a heating factor of 30 (mild winters) would require a unit with a heating capacity of 60,000 BTUs. Hybrid 4 Ton 14. Total costs vary by local labor rates, brand choice, and a few other factors. 32792. Propane Furnaces – $5,000 – $7,500+ (typically in more rural areas, which increases average costs) Electric Furnaces – $3,000 – $5,500+. Apr 8, 2024 · Larger homes require more forced air to heat each space and maintain a consistent internal temperature. Jul 7, 2023 · A 35,000 to 60,000 BTU furnace. Our quiet, energy-efficient furnaces are designed to provide warmth to keep you cozy in winter and to circulate Measure rooms throughout your home, and calculate the square footage. If this 1,900-square-foot home is in Washington, D. The square footage relative to BTUs needed varies among the seven climate zones. Examples: 100,000 BTUs x 80% = 80,000 BTUs. For very large homes up to 3,500 square feet, you’re looking at a cost closer to $7,000. The 96% AFUE also means that for the gas going into the furnace, 96% of it is used to heat your home while the remaining 4% is lost out Jan 9, 2024 · Furnace Prices by Fuel Type. Hours of Operation:Monday-Friday. Furnace Size Calculator estimates your furnace size, BTU load as well as Cost to Install a new high-efficiency furnace (gas or oil). 2 for sunny areas). If you live in a moderate climate such as the Pacific Northwest, you might only need 25 to 30 BTUs per square foot. That means that even within the same Detached House square footage * Furnace Output [BTU/hr] Air Conditioner size [ton] Built after year 1980: Built before year 1980: Built after year 1980: Built before year 1980: up to 1300 sq ft: 40,000 BTU/hr: 50,000 BTU/hr: 1. Note that these prices include a typical installation. 5 Ton - 2. and use 45 to 60 BTUs per square foot. 0 for shaded areas, 1. May 10, 2024 · In this calculator, we find the furnace BTU size using the recommended BTU/h per square foot for your climate zone or your annual average temperature, as shown in the table below: Climate zone and annual average temperature. Apr 29, 2022 · How to measure square footage: 100,000 BTU: 30 kW: For the equivalent of 44 kW, you would need a 150,000 BTU furnace. While this method is simple, it does not take into account the insulation, age, or climate of your home. Normal range for U. $ 3,800 - $ 10,000. 4 SEER2 80% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Upflow. you will multiply it by the efficiency (80 or 90 or 95%) to determine the output. One ton of cooling capacity is equivalent to 12,000 BTUs per hour. 100,000 BTUs x 90% = 90,000 BTUs. S. 7 ft. With an efficiency of 96%, this means that the furnace has an output of 96,000 BTU, meaning that it is generally suitable for large houses in ideal climates. The installation cost for higher efficiency models can go up to $8,250. A furnace can have one of three types of gas valves: Single-stage; Two-stage; Modulating; Single-stage furnaces have one heating output: 100% capacity. , however, and the furnace you’re looking at has an 80 percent efficiency, the input rating should be 100,000 BTUs. For an average-sized home, a furnace between 40,000 to 100,000 BTUs is typical. BTUs Needed. X 10 ft. Model: GSXN403610 / CHPT4860D4 / GM9S801005CN. FREE delivery Jun 6 - 10. Dec 9, 2021 · To put it together: 2,000 square feet X 30 to 35 BTUs = 60,000 to 70,000 BTUs. Air Conditioners with Heat Pumps. 3. 3 out of 5. 5 ton. A new electric furnace cost to install can range from $767 to 3,523 or more. 5 ton: 2 ton: 1700 to 2500 sq ft: 55,000 Jun 8, 2020 · For example, in zone 3 to 4, which typically requires 40-45 BTU per square feet, you can determine that a 2,500 square foot home would need a 100,000 to 112,000 BTU furnace. Most homeowners pay around $3,280 to replace an existing high-efficiency furnace that heats a 2,000-square-foot home. Learn more. Q. BTUs required for a 2000 square foot home in Montana (Zone 5) You calculate furnace size by multiplying the square footage of the house by the heating factor – a value based on climate factors expressed in BTUs. The walls are 8' tall, plus rim joists, so 142' circumference times 17. 75 tons (about 4 tons) and about 13 kW. The R96V Prestige Series gas furnace greatly reflects that with a Learn about the factors that affect HVAC pricing and installation costs, such as size, efficiency, and features. With an input of 100,000 BTU’s and an efficiency of 97%, the GMVM971005CN has an output of 97,000 BTU’s. 35. Zone 3 – 40 to 45 BTUs. The average price a homeowner pays for a Carrier gas furnace is around $2,882. The 100,000 BTU TM9V series 96% efficiency multi-positional gas furnaces have a 33 in. On average, it can heat about a 110 sq ft room. 3 Ton 15 SEER2 80% AFUE 100,000 BTU Goodman Gas Furnace and Air Conditioner System - Horizontal. Jan 31, 2024 · 60,000 to 100,000: $2,400 to $4,000: 2,500: 75,000 to 125,000: $3,000 to $5,000: 3,000: it’ll cost around $3,300 for a new furnace based on total square footage and BTU rating. 293 watt-hours, or the energy released by burning one match. Jul 22, 2022 · You will need a 1. Example: For this example, we have a detached house in Edmonton which was built in the year 1992. A 90 percent high-efficiency rated at 60,000 BTU will deliver about 54,000 BTUs per hour of heat energy to your home. Jan 28, 2023 · A 2,000-square-foot home needs an average of 90,000 to 100,000 BTUs, with an appropriate furnace for a home this size costing between $700 and $2,200. In a standard (moderate) climate, heating requirements can be estimated at about 45 BTUs per square foot. However, professional load calculations are necessary for accurate sizing. CSA listed. The key question, as you can see, is in which Climate Zone you live. Furnace Replacement. BTU Recommendation (BTU/h per ft2) (Minimum) (Maximum) Zone 1 (21°C and up) 30. = 70 square feet. The company has a nationwide presence, with thousands of certified Trane dealers Feb 15, 2012 · Current furnace is 100000 BTU natural gas 92% efficient which is about 16 years old so I'm Starting to price new furnaces. These are quick answers. In climate zone 1, which occupies much of the southern part of the United States and parts of Arizona, Nevada, New Mexico and California, you should have 30 to 35 Btu per square foot of home. However, electric furnaces have higher operational costs than gas furnaces. The windows are 85*300/2=12750 BTU/hr. As such, the GMVM971005CN Goodman gas furnace is designed to be able to cover up to a larger house in ideal climate conditions. 8 SEER2 80% AFUE 44,000 BTU ACiQ High Efficiency Gas Furnace and Air Conditioner System | Inverter | Extreme Heat. Replacing a furnace can cost anywhere from $2,000 to $7,000, depending on your furnace type. Electric furnace prices can range from $585 to $1,074. The furnace is the heart of your home—out of sight, out of mind, and still keeping you and your family comfortable all year round. Feb 22, 2024 · requiring 30 to 60 BTUs per square foot. Total Square If the same 100,000 Btu furnace has an efficiency rating of 93% it will produce: 100,000 Btu input; X . Mar 25, 2024 · Installation costs for a new Ruud furnace can range from $2,500 to $3,578. Furnace Sizing Starts with Square Footage 35-40 BTU/sq. How hard Hybrid 2 Ton 16. Another variable in determining your energy needs is space - both in terms of square footage and cubic footage. Started looking and asking prices. 5 SEER Air Conditioner GSX130361, Coil CHPF3743C6, 100,000 BTU 96% AFUE Horizontal Gas Furnace GMEC961004CN. Installing a typical 96% AFUE (efficiency) furnace costs $4,750 to $6,370 including all labor and materials. 1 for average exposure, and 1. Aug 4, 2020 · Now you can answer how many square feet will a 5,000 BTU heat. Semi-detached House square footage *. Furnaces typically have around an 80 percent efficiency rating, although more expensive, high-energy models have at least a 93 percent efficiency rating. It'll be different. BTU is often used as a point of reference for comparing 100,000 BTU’s/hour and heats up to 2,000-3,000 square feet. Homes after 2005 need 40 BTU per square foot. The average cost of a Trane furnace is around $9,150, but you could pay anywhere from $4,800 for lower-end models up to $13,500 for premium models. 92% Efficiency Rating. How is recommended furnace size calculated? May 3, 2024 · Step 3: Calculate the right furnace size. Q: What size furnace do I need for a 3000 sq ft house? A 100,000 to 160,000-plus BTU furnace. Zone 5 – 50 to 60 BTUs. Nov 27, 2023 · The Trane 96 Modulating Variable Speed Gas Furnace gas furnace is a paragon of efficiency with an impressive AFUE rating of 97. This BTU count is a measure of the input of the furnace per hour, while the output of this furnace is 92,000 BTU’s (100,000 X 92% AFUE) per hour. The British Thermal Unit, or BTU, is an energy unit. May 24, 2024 · The calculation is simple. Keep in mind that if your Aug 5, 2010 · It would seem as though it is but remember the 100,000 is the input. Goodman 2 Ton 14. Your furnace replacement cost will depend on home size, and does not Nov 21, 2022 · Therefore, the colder the outdoor temperature, the higher the BTU rating you’ll need. Permanently-lubricated motor for trouble-free operation. HVAC contractors use a rule of thumb to allocate 20 BTUS to every square foot of space inside your home. See the price range for a gas furnace: How we get this data. home in a moderate climate would need a furnace with an output between 80,000 and 90,000 BTUs. Homes 1,600 to 2,600 square feet need an oil furnace with 72,000 to 150,000 BTUs of heating capacity. Jan 25, 2024 · Calculate BTUs: Use the following formula: Q = A ×25× E where: Q is the cooling capacity in BTUs per hour, A is the area in square feet, E is the adjustment factor for sun exposure (commonly 1. 5 ton to 5. 0 ton unit, either an AC for cooling along with a furnace or a heat pump that will both heat and cool. Two-stage furnaces have two heating outputs: 100% and a lower setting that’s typically between 60-70% capacity. These single stage, high efficiency furnaces are natural gas ready and convertible to propane (LP Gas) with the optional LP 347 conversion kit. Seeing a pattern here? In the example above, using an 80% efficient furnace, the 2000 square foot home above would require a 100,000 BTU input furnace which will produce the necessary 80,000 BTU's output The 80,000 BTU TM9E series 95% efficiency multi-positional gas furnaces have a 33 in. You’ll Rheem 96% Variable Speed 100K BTU Gas Furnace, R96VA1002521MSA (F) You save $1,180. May 28, 2022 · A new furnace for a 2000 square foot (185 square meter) home costs between $2,800 and $11,000, with most priced at $5,935. BTU. Some manufacturers have started measuring furnace size in MBH instead of BTUs. Your furnace is a 90+ so your output is close to 90-95,000 btuhs. 100,000. What is the life expectancy of a furnace? Apr 29, 2024 · More than 80% of oil furnaces are in the Northeastern U. Rating: 24 review (s) $3,885. Up to 18,000 BTU = 1. If your winters include a lot of snow, north winds and bone-chilling temperatures, you need the capacity and efficiency of a 120,000 BTU furnace. Nov 27, 2023 · The average gas furnace replacement cost for a 1,600 to 2,000-square-foot house is about $7,000, with a typical range of $3,800 to $10,000, though some high-efficiency models will cost as much as $12,000. 5 to 4 ton. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it. In climate zone 2, located just above climate zone 1 and stretching from the Carolinas to much of California, you should allow 35 to 40 Btu per square foot. Jan 2, 2024 · The average furnace replacement cost is between $2,372 and $4,414. This means that a single-stage furnace is either on or off. 40000 BTU - 72000 BTU; 80000 BTU - 100000 BTU; 120000 BTU; Ultra Low NOx For California ; Low NOx For California; Evaporator Cooling Coils. Natural Gas Furnaces – $4,000 – $6,500+. For example, if you live in a 1,000-square-foot home, your furnace may cost between $6,425 and $7,420. Compare Trane HVAC prices with other brands and models. Gas Furnaces. 93 efficiency; 93,000 Btu actual output; For this example, using an 80% efficient furnace, the 2000 square foot home above would require a 100,000 Btu input furnace which will produce the necessary 80,000 Btu's output of heat. Thermal Fin heat exchanger creates 32% more surface area than a standard stove design resulting in more heat entering the room. 5 ton: up to 2 ton: 1300 to 1700 sq ft: 45,000 BTU/hr: up to 55,000 BTU/hr: 1. For example, an average 2,000-square-foot home will need between 80,000 and 115,000 BTUs to heat efficiently. Unless the house is older with poor insulation and you live in the northern parts, it will probably be oversized. 3 SEER2 96% AFUE 100,000 BTU ACiQ High Efficiency Gas Furnace and Air Conditioner System | Inverter | Extreme Heat. USA. Mid-efficiency furnaces vent through a chimney and cost about $1,500 to $2,500 with installation. Zone 2 – 35 to 40 BTUs. Square footage of the house 2. 60,000 BTUs. While that is quite large, a few May 20, 2024 · In general, it will cost $2,000 to $3,000 for a 40,000 to 60,000 BTU furnace. Furnace and Air Conditioner size for a semi-detached 2-storey home. 1. wq zz ag rp pz ti hr pu kf ze