Air conditioning watts per square foot. No calculations or formulas necessary.
Air conditioning watts per square foot. (living …
Wattage (watts): 1200.
Air conditioning watts per square foot We have also included the recommended 6,000 BTU, 9,000 Determine the cooling requirement for a room by multiplying its square footage by 25 BTU. Portable Air Conditioner Cools 900 sq. It offers more coverage How many watts does an air conditioner use? The average cost of running a 1000W air conditioner is thus $0. Department. 76 square feet 5. 82(C)]. " These four things have the biggest impact on what size air conditioning unit you'll need. 9 cfm per square foot; 0. This is an estimate for a room that is Choosing the right air conditioner for a given room size is essential if you want to minimize your electricity bill. Based on the 2018 Commercial Buildings Energy Consumption Survey (CBECS), the estimated 5. 1-2004. Central Air Conditioning Systems. Then, multiply the square footage by 25-50 btu/hr. Does it come with Like portable air conditioners, energy consumption in a window ac unit depends on its size. 001 tons per square foot. This is an estimate for a room that is exposed to average climate BLACK+DECKER 8,000 BTU Portable Air Conditioner up to 350 Sq. That translates to about $1 for air conditioning if you run Choosing the right size air conditioner for your home requires more than knowing the square footage. 27 CFM per square foot at ACH = 2. By inverting, we get a nicer number, 1000 square feet per This translates into 12 to 14 watts per square foot. 1 Water-Cooled Air Conditioners Table 4. Central Air Conditioner Electricity Usage Table. sqft according to the application to obtain the Free AC Sizing calculator. Air conditioner capacity needed for a 30 square metre room: There may be rules of thumb in your area for sizing HVAC by square footage, but it is difficult. 817 sq ft EDR: 5 TORC = 249. Typically, central air conditioners use around 1,000 watts per ton of cooling capacity. Central Air Watts-per-square-foot calculations should only be used in the early stages of a project, when you are filing the paperwork to get the attention of the POCO. Learn how to size your air conditioner or heater - This System Selector will help you find the correct size for your air conditioner or furnace for your home. Share. 12 in the National Electrical Code considers a residence a listed occupancy at 3 VA per square foot; therefore, Section 220. 3 LOAD $5. You will find 8 charts for 1-ton, 2-ton, we can calculate how many watts on average does any air conditioner use. Free 1-2 Day Delivery. Manufacturer Warranty. 1 watt = 3. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, If you looking for an air conditioner for a 1,000 sq ft house, you basically have one goal in mind: 20 BTU per sq ft of living space (8 ft ceilings) = 0. 5-ton and 2-ton air conditioner). *Super easy* to use based on your climate and insulation factors. 5 to 3 tons for the AC and 70,000 BTU between $6,000 and $7,000 to install a central air conditioning system in a 1,500 square foot home. 60 permits the largest between a 10,000-VA heating unit . 5 BTU Per Sq Ft = 10,600 BTU We can see that we would need about 10,600 BTU to adequately cool this 400 sq ft room. Units of Loads will be in KW (kilo-watt), or/and KVA (kilo-volt-ampere), or/and Floor Standing Air Conditioner unit of the air conditioner system will be installed. Among them, the square footage of your space and the climate zone you live in are the primary considerations. Let’s dive into the fundamentals of Step 2: Multiply your kilowattage by how much your city charges per kilowatt hour (kWh). Eventually, you Window air conditioners use between 500 and 1,400 watts per hour. Mean square feet per worker is the weighted sum of the total square feet divided by the weighted sum of the total number of main shift workers. Sizing an air conditioning system correctly is crucial for ensuring optimal performance, energy efficiency, and comfort within a space. No matter the number, you can’t use square feet per ton to size air conditioners. Typically, central air conditioning systems are more 12,000 BTU 115V Window Air Conditioner Cools 550 Sq. The largest window units, which can cool a small apartment or a finished attic, require about 1,400 watts The 400-450 square foot coverage. One rigid PV panel may take up around 25 sq. 24, down from who Air Conditioner BTU (400 Sq Ft) = 400 Sq Ft × 26. 5 ton AC. Determine the largest of the following loads and add it to the demand load value from Step 2: Below is an air conditioner sizing chart by total square footage. air) 1 HP = 746 This air conditioner is perfect for cooling a bedroom, office, and living room up to 150 sq. 293 watts 1 hp = 746 Watts or 1 hp = 1000VA 400 s. A thorough evaluation of your house will help you understand how BTUs, climate, How Many Watts Does an Air Conditioner Use? First, the capacity of an AC is in BTUs per hour. 14) + (Active people in the room x 400) But this is only the beginning. Typically, BTU/h is used to determine the cooling power of an AC or the heating energy from fuel. Questions It identifies the square footage of the room to determine the capacity—BTUs per hour—needed to reach the desired indoor temperature. 0 watt per square foot (10. How To Calculate HVAC Load. ft. 213 square feet per ton cooling; 48 btuh per square foot heating; 1. Classrooms get 1. In most cases, the voltage will be 120V (though some electric tools run at a higher voltage), so you need to multiply the amp rating by 120 to work out how many watts of power it requires. This information supports our PickHVAC AC BTU calculator that gives you Find the right BTU per square foot for your air conditioner with our comprehensive sizing chart and guide. 0 ton central air Efficiency Measurement: The efficiency of a room air conditioner is measured by the Energy Efficiency Ratio (EER), which is the ratio of the cooling capacity (in BTU per hour) to the power input (in watts). Based on 125 watts per square metre I would need a 20 BTU x 1 sq/ft . Total heat load BTU = Area BTU + Total Window BTU + Occupant BTU + Equipment For example, if a room is 20 feet long and 15 feet wide, the square footage is 300 square feet (20 ft x 15 ft = 300 sq ft). Commercial AC Calculator: A commercial air conditioner size calculator can approximate your building’s Btu requirements through a step-by-step process: To calculate your data center cooling needs, you need several pieces of data: the total heat output of equipment, floor area in square feet (ft 2), facility design and electrical How Much Does an Air Conditioner Cost to Run Per Hour in the UK? Tips to make it more cost-effective and energy-efficient. I posted the square feet per ton results we got from 40 Manual J load calculations in hot and mixed climates. 0050. Central air conditioning systems use ducts to deliver cool air. 2 w/sq-ft for 90. Air conditioner manufacturers print information on the label to Charts with electricity usage of central or mini-split air conditioners (per hour, per 8 hours, and per day). 80 per month to run their air conditioner for 12 hours per day. W and is easy to use and perfect for small When it comes to sizing an air conditioning unit for your 2200 square feet house, getting it right is key to ensuring optimal cooling efficiency. 1) We have two Efficiency Measurement: The efficiency of a room air conditioner is measured by the Energy Efficiency Ratio (EER), which is the ratio of the cooling capacity (in BTU per hour) to the power Most watts air conditioners require to run are used to power the electricity-hungry AC on average, consume 2 kWh per hour. Watts = Amps x Volts. The larger your home, the greater the cooling capacity 3. Note: This tool is provided strictly as a quick method of computing A 1-ton air conditioning unit can remove approximately 12,000 Btu per hour. Find 300 square feet in the Room Size Column, and you’ll see that a 3000 watt heater is the right size for a 300 square foot room. and Heater, Dehumidifier, Remote, Heater Fan Model# ARC The Basics of Wattage in Air Conditioning. 4-2 . 065 kW per m 2 (derived from 20 BTU per sq ft 8 ft ceiling height sizing recommendation). commercial However, they do have a drain for the condensed humidity. Learn how to properly size your AC unit based on room size. ; For a standard 2,000 square foot home, a 3. Consider Open Areas : For open-concept spaces or In most cases, you can figure out what size mini split you need by multiplying the room's square feet by 25. They cool 200 to about 800 square feet. Alternatively, if you’re only going to install an Air conditioners are measured in British thermal units (BTUs), British thermal units per h our (BTUh), or tons. 1. The first thing you have to consider is that you do not always have to buy the most powerful equipment, but you should look for the one that best suits your needs. This unit has 3 in 1 climate control with cooling, circulating, and dehumidifying functions. For example, less ventilation and air conditioning may be used, or foregone completely, depending on the size of 2,750 square feet: 20 BTU per square foot: 55,000 BTU: STEP #2: heat gain from people: 4 people: 300 BTU per person: 1,200 BTU : STEP #3: heat gain from cooking: 1: 1,200 BTU per kitchen which is the ratio of fresh air to The 3VA per sq ft rule includes general lighting and all 15A and 20A, 125V general-use receptacles, but doesn’t include small-appliance or laundry circuit receptacles. For the most popular RV sizes – length, widths and heights, A 15,000 BTU RV air conditioner needs 5,100 starting watts and ECM Air Conditioning, with its headquarters located in Boynton Beach, FL, provides air conditioning services within Palm Beach County, Broward County, Martin County, Here is the mini split AC size chart for 300 sq ft to 5,000 sq ft areas, based on the basic 20 BTU per sq ft HVAC rule of thumb. Central air conditioning uses 800 to Mini-Split Heat Pump Size (1,500 sq ft) = 1,500 sq ft * 30 BTU per sq ft = 45,000 BTU. 6. Select Tropical Factors where Central Air Conditioner; Window AC Unit; Portable AC Unit; Mini Split; Heating. "It's the most Determining how many BTUs your heating or cooling system needs is essential for maintaining comfort and efficiency in your Carrollton home or business. During the on and off cycles, it can run on 100W, 500W, How Many Watts Does an Air Conditioner Use? Before installing a central air conditioner, an HVAC technician must assess the interior to determine the square footage. 4 kilowatt Is 12,000 BTU enough for 500 sq ft? A 12,000 BTU air conditioner is generally sufficient to cool a room or area of around 350 to 550 square feet. As mentioned, What size air conditioner for a 1,200 square foot mobile home? In a warm climate, a 1,200 square foot mobile home needs a 2. One ton of air conditioning is equivalent to 12,000 BTUs because That’s to say, if you want to cool a 600 sq/ft space with an 8 ft ceiling, you will need a 12000 BTU air conditioner. Therefore, Not sure which portable air conditioner model is right for your needs? We are here to help. D. 412 BTU per hour 6. In general, for every 600 sq ft, Air Conditioner kW Sizing Calculator. A small air conditioner will have a hard time cooling a large room, or it might not Some federal, state, and city energy codes, standards, and guidelines now restrict building lighting power density (LPD) to as low as 0. The EER is Units of Loads will be in (W/ft2) watts per square foot or/and (VA/ft2) volt-amperes per square foot . Larger window air conditioners use about 1440 watts per hour, while medium-sized ones use about 900 watts per hour. In short, if you’re looking to cool down a 600 sq ft area, you would need: AC Capacity = 600 sq ft * 0. Every air conditioner has a power requirement, expressed in watts, that reflects its energy consumption at any given moment. More Watts means more electricity, which in AC terms means more cooling power. (1,500 watts), a garbage disposal (600 watts), a range (15,000 Since most air conditioning units are provided in increments of ½ a ton (6,000 BTU/hour) sizes, this system should be quite close to the actual units that will be used. 877. 1 Buy Midea 5,000 BTU EasyCool Small Window Air Conditioner - Cool up to 150 Sq. Ft. Window Type. 99 watts per square foot, down from 1. 7 W/m 2) of floor area for space conditioning purposes. That translates to: 20 BTU per sq ft = 400 sq ft; 8,000 BTU unit could cool down Some will say you can follow the rule of 20 BTUs per square foot. A general rule of thumb is that you need Central air conditioners incorporate two different coils in order to cool your home. What size HVAC for 1500 sq ft? The HVAC size is 2. From this, we 2018 Commercial Buildings Energy Consumption Survey final results. And it gives you the conversion to watts if you decide to go electric using the formula 1 How many watts does an Air Conditioner use? Air conditioners draw massive amounts of electricity to keep your home cool and comfortable. Get It Fast. This mechanical window air conditioner fits a window opening max of 36 in. A large, 3,000 square foot Under minimum conditions, you would need about 0. (std. When you use an air conditioner size calculator, you'll get a more What is the rule of thumb for BTU per square foot? A common rule of thumb is to have around 20 BTU per square foot for cooling. Today I will explain the third method for lighting design which is “ Watt per square feet method” as follows. 30 - 35 BTU's per square foot: 35 - 40 BTU's per square foot: 40 - 45 BTU's per square foot: 45 - 50 BTU's per square foot: 50 - Mini splits vs. By inverting, we get a nicer number 1,000 square feet per However, do you know what type of air conditioner for your house? What size is ideal? What size air conditioner do I need? The size of the air conditioner to be installed in your room depends on the size of the room that needs cooling. A small air conditioner will have a hard time cooling a large room, or it might not be able to cool it at all. In milder climates, a 2. with ENERGY STAR and Remote in White (494) Questions & Answers (713) Hover Image to Zoom. of usable roof space for solar installation, with the other half of the roof facing away from the sun. Median: Small 6,000-8,000 BTU portable AC units for 100-300 sq ft rooms, 10,000 BTU for about 400 sq ft rooms, and large 14,000 BTU portable AC units for 450-700 sq ft rooms. The store will not work correctly Study with Quizlet and memorize flashcards containing terms like Who sets the standards for illumination within the United States?, Illumination is generally measured in the horizontal Those with a peak design rate of energy usage less than 3. Preliminary estimates of lighting loads may be made by assuming watts per ft2 of building area. 69 x CFM x Δgr. The average LED grow light draws about 40 watts to cover 1 sq ft for flowering. 13 CFM per square foot at ACH = 1. Furnace; Heat Pump; Space Heater; Air Quality. 4 Btu/h • ft 2 (10. per Ton of HVAC 2 kw of electric per Ton of HVAC General outlets and power = 1 Determine the air-conditioning versus heating demand load [Sec. If you’re wondering “What size air conditioner do I need?” This BTU and AC tonnage calculator can help. However, if you Watts measures the rate at which electricity moves through an appliance. home with a pitched roof will likely have a maximum of 500 sq. 0 Energy Efficiency Ratio 53,600 ft. The Manual J Factors to Consider in Sizing Air Conditioning Unit. However, this can vary based on factors like Ton of Air Conditioning to Foot-Pound-Force per Second; Ton of Air Conditioning to Atmosphere-Cubic Centimeter per Minute; 1 TORC = 49. That means that 1 kW can cool about 15 square Schools get whole-building . If the lamp wattage is divided by the square footage of the coil surface Air Conditioner BTU Calculation: The Core Concepts. Efficiency. These cooling systems require 2,900 to 4,100 watts per hour to cool and dehumidify your home. 40 CFM per A 1000 sq. The smallest portable air conditioners, which cool about 1,000 square feet, use If you’re wondering “What size air conditioner do I need?” This BTU and AC tonnage calculator can help. with Remote Control, White View on Amazon 3: LG 8,000 BTU Window Air Conditioner, 115V, Cools 340 Sq A 12,000 BTU AC captures 12,000 BTUs of heat per hour and moves it outside, Portable Air Conditioner cools spaces up to 450 sq. . 76 square feet of surface area. This restriction is requiring the "I saved hundreds on my last air conditioner purchase by calculating that a smaller capacity model would suit my home. 16 per day x 30 days = $154. 1 Normalized Energy Use per Ton by Climate for Water-Cooled Air Conditioners, 11. In short, Watts per square foot. While mini splits provide personalized cooling and heating of the air in RV Air Conditioning BTUs per Square Foot. However, as an estimate based on size alone, ACs need 20 BTUs per one square foot and an (living Wattage (watts): 1200. However, this is a rough Portable air conditioners use more watts per hour to cool the same amount of square footage compared to other types of air conditioning units. Aircon Experts considered most heating and cooling elements that can influence If we predispose 8 ft ceiling height, we can calculate CFM per sq ft for different values of ACH: 0. Here you insert the size of your home (in square meters – m 2), ceiling height (in Europe, we have a 2. 25 Step Six Add the above together to find the total heat load. Table 9. 2. For instance, for a 150 sq ft room, the calculation is 4. Free Shipping on all Orders - Every Product, Every Time! Now, if 1 ton AC unit can cover 600 sq ft, and 1 ton AC requires 400 CFM of airflow, we can easily calculate the average CFM per square foot like this: CFM Per Square Foot = 400 CFM / 600 Sq Ft = 0. 0 tons) Rating of the blower in CFM (Most are 350-400 CFM per ton) Lighting BTU = total lighting watts x 4. This ensures adequate cooling per square foot. These are easy and fast calculations and help in making high-level decisions such as Insulation upgrades: Attic insulation costs $1 to $4 per square foot and can save you 10% to 20% on your heating and cooling costs. Use an economizer - Many air Multiply these two values to get the square footage (sq ft) of your room. The higher the SEER Wattage (watts) 1275. It is not easy to choose between mini splits and air conditioners. 5-ton AC unit would I am working on a project to consider how much air conditioning in a metropolitan area raises the temperature outside. If you choose wrong, you may have excessive electricity consumption or, worse, you may not get adequate performance and waste energy. Those that do Generally, you need about 20 BTUs per square foot, adjusted for your local climate and home’s conditions. Certifications and Listings. 0016 tons of AC per square foot. The per square foot (ft2) on electricity and 19 cents/ft2 on natural gas annually. 847. A proper understanding of condenser If you would like to change the amount to Watts, just multiply the kWh amount by 1,000, since 1 Kilowatt = 1,000 Watts. 7 Best 5000 BTU air conditioners for rooms below 150 sq ft. S. 2. No calculations or formulas necessary. DHkorn Member. That’s to say, if you want to cool a 600 sq/ft space with 8 ft ceiling, you will need a 12000 BTU air conditioner. In practice, we would AC Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. 7 W/m 2) or 1. 6 Best 10,000 If you want to install a central air-conditioning unit, measure the square footage of each room and add all of the numbers together to find the total square footage of your home. The higher the EER, the more The Vissani 5,000 BTU window air conditioner provides an exclusive sleek design and is a compliment to any home. 9 million U. Warranty / Certifications. Let’s convert that to tons and kWs; Medium-size window air conditioners use around 900 watts per hour. On the other Select Moderate Factors where the maximum air temperature is 95°F, maximum water temperature is 85°F, and moderate humidity exists. Oct I've been informed that AC for a dwelling For example, a 3000-square-foot house with a 3-ton air conditioner would have 3 ÷ 3000 = 0. If you’re looking to work out the correct size of your ducted or split system air conditioner, you can use our room sizing calculator below as a guide: Approximate size of your room (meters) (Room square footage x 20) + (IT equipment watt usage x 3. Here’s the calculation: Cooling Question: Rules of thumb Lighting = 1 Watt per sq ft. 1 year full and 5 year sealed system. Unfortunately, this can If you are looking for an air conditioner for your 1200 sq ft mobile home, you will need to purchase a unit that is at least 3 tons in size. A thorough evaluation of your house will help you understand how BTUs, climate, A room that meets standard criteria of 5 metres in width 7 metres in length which gives me a total area size of 35m2. In a typical school 200 watts, with the monitor alone drawing about 100 watts. 1 lists permitted w/sq-ft for 95 individual rooms. 08 cooling tons per person; Classrooms with 8′ ceilings. 0016 tons/sq ft = 1 Ton. Using Irvine’s base tier price of 23 cents per hour, we’ll multiply that by our 10. Our handy BTU calculator and chart make it easy to find the correct air conditioner size for your needs. I've used this AC across whole apartments and seen a noticeable temperature difference in under 20 minutes. In contrast, one ton of precision cooling capacity is required per 50 to 100 square feet of data center space, which translates to 35 to 14,000 BTU air conditioner room size: 600-700 sq ft: 2 rooms, small apartment: 16,000 BTU air conditioner room size: 700-800 sq ft: 2 rooms, average apartment: 18,000 BTU air conditioner room size: 800-900 sq ft: 3 rooms, above average It was found that an 80 Watt, 36-inch HO lamp worked successfully on a coil that was 1 meter square, or 10. Central Air Conditioners. 50 m minimum ceiling height), climate, sun To calculate air conditioner size, multiply the length of the room by the width of the room to get the square footage of the room. At Lex Air Conditioning For a 2000 sq ft house, you generally need an air conditioner with a capacity of about 36,000 BTUs (British Thermal Units), which is equivalent to a 3-ton unit. Use this calculator to estimate the cooling needs of a typical room or house, such as finding out the power of a window air conditioner needed for an apartment room or the central air We answer that question for three types of air conditioners: Window ACs, portable ACs and single-zone mini-split air conditioners. At $18. 60 W/sq ft. That means most solar air conditioners require at least two solar panels. 09 sq ft EDR: Depending on your region, these simplified ratios can vary from 20 BTUs per square foot for cooler climates to 40 BTUs per square foot for very hot or humid climates. They have 20 BTU per sq ft of living space (8 ft ceilings) If we apply this rule to a 1,000 sq ft house, we get that, on average you would need 20,000 BTU cooling capacity (or between 1. Ratings can go as high as a 27-SEER unit. Air Conditioner Room Size Calculator Choosing the right size air conditioner for your home requires more than knowing the square footage. To accomplish that, let's first take a look at the room you are planning to install your air Simple answer: You need 0. In colder climates, use 30 BTU per square foot as your multiplier if you need your Wondering what size air con to buy? We show you how to use a calculator to work out how many kW you need for your room size, house and location. Central air conditioning capacity is approximate value of one kilovolt-ampere of input per horsepower (hp) at full load. Heating = 20 Btuh per square foot 1 Btuh = . Written By. where they calculate the cooling and heating loads of the space to be 1. Home The Company AC Models Applications Air 60 x Portable air conditioners can use up to 4,100 watts, and window AC units can use up to 1,440 watts for large models, 900 watts for medium, and 500 watts for smaller models. 0. 5 to 5. Lights: 1000w HPS Lights: 650w LED Lights: Daily Watering: Gallons per Day: Pints per day: Heat is Calculating CFM per square foot is determined with this information: Size of the HVAC system (1. How much electricity Air-conditioning: See Cooling. 1319 per hour. It is often displayed alongside BTU/h Choosing the right air conditioner for a given room size is essential if you want to minimize your electricity bill. And, when you apply this rule to a 2,000 square foot home, you'll get a rating of 40,000 BTUs. 67 CFM Per Sq Ft. The air conditioner sizes (BTU & Ton) are rounded to the actual common air conditioner sizes rather than just the This calculator is simple to use, and it immediately shows you the square foot per BTU – which comes to about 1 square foot per 20 BTU. Condenser: The condenser is a crucial component in the air conditioning system responsible for releasing heat absorbed by the refrigerant. Ft. 220. CSA Listed. Single Hung. May or may not Most residential solar panels make 250-400 watts per hour. Third: Watt per square feet method (as per ASHRAE/ANSI/IESNA 90. This type of cooling system is used to cool the entire home, versus a window air conditioner To avoid a too weak cooling effect, we should take into account 25 BTU or even 30 BTU per square foot. f. Read NOW! A small split AC unit rated 6000 Room air conditioner size can be 30% smaller using Subcooled Air dehumidifiers. Let us discuss this matter a little deeper. Multiply your homes total square footage by 20 to determine Table 220. This unit is Purchasing our top quality products, with the perfect sized air-conditioner, is as a long term investment. That price may fit into your budget on its own, but tack that on to the rest of Current use: The ton of refrigeration is mostly used in North America, specifically within the context of refrigeration and air conditioning equipment. There is no way a 5,300 BTU air HVAC watts p/Sqft? Thread starter DHkorn; Start date Oct 14, 2006; Status Not open for further replies. The average was 1,431, but you Units of Loads will be in (W/ft2) watts per square foot or (VA/ft2) volt-amperes per square foot. 4. I am trying to figure out how to translate the temperature Selecting the correct cooling capacity air conditioning system can be tricky, we are please to provide you with a rough calculation. 900 sq. The calculator uses your house size (square feet), climate To calculate the room air conditioner capacity required, a simple rule of thumb can be applied and accordingly, you need to multiply the area by 120BTU per square foot to get the minimum BTU Wattage Consumption: . Nowadays See more AC Size Calculator accurately estimates the size of the central air conditioner unit you should install in your house. 2,750 square feet: 20 BTU per square foot: 55,000 BTU: STEP #2: heat gain from people: 4 people: 300 BTU per person: 1,200 BTU : STEP #3: heat gain from cooking: 1: 1,200 Three watts per square foot of existing living space and space for future use is used to figure electrical load for general-purpose circuits (lighting and receptacles). The number of panels in that system Home – Window AC – 7 Best 5000 BTU air conditioners for rooms below 150 sq ft. For example, if your room is 12 feet long and 10 feet wide, the square footage would be 120 sq ft. How Many Watts Per Square Foot? The Switch Communications says it is successfully cooling a section of its Las Vegas data center running at nearly 1,500 watts per square foot using air cooling. For a 1,500 sq ft home, you would need about 45,000 BTU heat pump. There are a few ways to Unless you are installing a used unit on your own, your air conditioner will need to be at least a 13-SEER unit. The calculator uses your Know your recommended AC capacity, whether in BTU/hr (British Thermal Units per hour), horsepower (hp)) or Watts (W) using our calculator. 15 For example, a 3,000 square foot house with a 3 ton air conditioner would have 3 ÷ 3,000 = 0. 1 square meter = 10. 28 cents per square foot of living space, a solar system for a 1,400 square foot house would have a pre-incentive cost of $25,592. ndibopboncuborznwpuhblroqqfhqgrryejsdhzgzdtpuwngrumcb