- All you have to do to find out what capacity furnace is best for your home based on its location is to multiply the square footage of the space by the heating factor. For instance, if you live in Zone 2 and have a 1,200-square-foot home, multiply 1,200 by 35-40 to get a BTU range of 42,000-48,000.
- In climate zone 4, which begins in Massachusetts and stretches across the country to parts of Oregon and Washington, you'll need 45 to 50 Btu per square foot. Finally, climate zone 5, which spans the northern part of the nation, calls for about 50 to 60 Btu per square foot of heatable space. How to Convert Btu to Therm
- Refer to the climate map at the top of the page to get a range of BTUs needed per square foot based on your geographic location. Home Insulation Affects BTU Requirements. The ranges in the heating climate zone chart above assume a home with average insulation. Homes that are poorly insulated may require 10% more BTUs to heat due to heat loss
- Warmer climates along the southern part of the United States - considered Zone 1 or 2 - require 30-40 BTU per square foot. The middle part of the country - Zone 3 and 4 - require between 40-45 BTU per square foot, while the northern areas of Zone 5 need up to 60 BTUs per square foot
- Simple answer to 'how many BTU per square foot' is 20 BTU per sq ft. You will probably need more than 20 BTU if you live in sunny Texas or if you have lots of windows. To properly estimate the size of an air conditioner for your square footage, you can use the BTU calculator here
- In more moderate climates, multiply by 20 - 30. And in cold climates multiply the square foot number by 30 - 40. For example, if you're trying to heat 1000 square feet in a cold climate, 30,000 - 40,000 BTU's will add significant warm air to your home
- It is approximately the energy needed to heat one pound of water by 1 degree Fahrenheit. 1 BTU = 1,055 joules, 252 calories, 0.293 watt-hour or the energy released by burning one match. 1 watt is approximately 3.412 BTU per hour. BTU is often used as a point of reference for comparing different fuels

Typical Heating BTUh Requirements Per Square Foot Climate Zone 1 - 30-35 BTUs / sq. ft. Climate Zone 2 - 35-40 BTUs / sq. ft. Climate Zone 3 - 40-45 BTUs / sq. ft * Furnace size for a 3,000 square foot home range from 105,000 BTU to 180,000 BTU, depending on the climate zone you're in*. Here is a table with calculated 3,000 sq ft furnace sizes for all 5 regions The heating and cooling capacity of the heat pump is expressed in tons where one ton equals 12,000 Btu/h. 2 ton - 1000 sq. ft 3 ton - 1500 sq. ft 4 ton - 2000 sq. f A good rule of thumb for unit sizing is to get a system that will provide you 40 to 45 **BTUs** of heat per **square** **foot**. If your home is 3,000 **square** feet, you'll want a furnace that produces between 120,000 **BTUs** and 135,000 **BTUs**. However, this can vary depending whether you live in a warmer or cooler climate

- ed by where you live. In New England and the upper Midwest, 40 BTUs are needed for each square foot every hour; this requirement drops to 35 south of Philadelphia — and only 25 per square foot along the upper West Coast. Step
- Simply multiply square footage by 20 BTU's per square foot. How Many Heaters Do I Need? Let's say your patio is 500 square feet. Look for a patio heater that provides 10,000 BTU's
- More importantly, 0.29 BTUs per Watt. Just multiple the BTUs by 0.92 to find the number of Watts needed. Since watts are a measurement of the amount of electricity used, you have to add per hour into the formula when you convert from BTU units to watts. Heating your garage to 70 degrees for ten hours obviously takes more energy than.

How to Size Hot Water Baseboard Heaters Measure the height of the room, the width of the room and the length of the room. Multiply the cubic footage of a room by 25 BTUs to determine the rough estimate of BTU requirements for the room. Add 25 BTU per cubic foot if your home has moderate to fair insulation (Up to 35 BTU per hour per square ft) WITHIN THE WALLS -Tubing is placed within the cavity of a partition wall. Exceptional comfort results if the floor and walls are heated in a bathroom. Combine wall heating with towel warmers

Evaluate the amount of BTUs needed to heat a space, taking into account several factors such as the insulation level and the desired temperature. Number of square feet Calculate the number of cubic feet to heat. Width ( ft) Length ( ft) Height ( ft) Number of square feet 0. 2. Temperature difference facto * 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*. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it. While this method is simple, it does not take into account the insulation, age, or climate of your home Calculate the total number of BTUs required to heat the home. For each room, multiply the BTU per square footage times the square footage of the room. For example, a home located in Zone 5 with.. Thus, a 2,000 square foot area with two windows, four regular occupants, and one kitchen would have a BTU of 52,720. This would require 4.39 tons of AC or 455 square feet per ton. This is close to the 400 square feet per ton sizing of the HVAC industry in Chicago and Orlando, but you will notice the variance due to us adding a kitchen and windows

* British Thermal Unit (BTU) is defined as the quantity of heat required to raise the temperature of a pound of water one degree Fahrenheit*. It is the basic measure of heat energy used in the Imperial system. When you understand the number of BTUs you require per square foot of your space, you will have an easy time in choosing the correct size of an AC system or a furnace for effective cooling. 4. 1 square meter = 10.76 square feet 5. 1 watt = 3.412 BTU per hour 6. 1 horsepower = 745.69 watts 7. 1 Btu/hr = 0.293 watts 8. 1 ton = 11956.14 BTU per hour 9. 1 horsepower = 2544.4342 BTU/hour 10. 450-550 square feet = 12000 BTU per hour 11. 700-1000 square feet = 18000 BTU per hour 12. 1400-1500 square feet = 24000 Btu per hou

- 83,700 Btu actual output For this example, using an 80% efficient furnace, the 1900 square foot home above would require a 90,000 Btu input furnace that produces 72,000 Btu's of heating, which is close enough to the 76,000 Btu's required using the climate heating factor
- To increase the floor output for selected tubing size and length, the flow needs to be increased. For example, by increasing the flow through 1/2 PEX tubing by only 0.1 GPM, floor output will increase at 5 BTU/sq ft/hr. For actual calculations, consult with your radiant system designer
- e 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. For example, if a room has 1,000 square feet, you would require 20,000 BTUs to heat it
- Result is The BTU requirement for heating a room with the details you entered is of 7,987 BTU/h, this is approximately 2.341 kW. Cooling tab: -for a room with a length of 14ft, width of 13ft used as a kitchen by 5 persons plus it is placed in a sunny space
- For each room, multiply the BTU per square footage times the square footage of the room. For example, a home located in Zone 5 with poor insulation would require 60 BTUs per square foot. Therefore, a room that is 300 square feet will need 18,000 BTUs (60 x 300)
- For one square foot of the insulation, one BTU per hour of heat flows across the insulator for each degree of temperature difference across it. 1 therm is defined in the United States and European Union as 100,000 Btu—but the U.S. uses the Btu 59 °F while the EU uses the Btu IT
- Then, how many BTUs do I need for radiant floor heating? Heat loss is a critical step, as we can estimate the average output of a radiant floor at 25 BTU's per square foot but windows, doors, insulation, and degree days all make a major impact on getting you just what you need. Furthermore, how do I calculate what size heater I need

Start with finding the square footage (length x width) of the area the appliance will heat or cool. In some cases, this may just be a room. Other times the unit is responsible for the whole house. BTUs per square foot x square footage = BTU output neede A BTU is the heat needed to raise the temperature of one pound of water by one degree Fahrenheit. The larger the space, the more BTUs are needed. For air conditioners, there is a BTU-to-room sizing rule of thumb. This can provide a rough estimate of the mini split BTU per square foot you need to efficiently service the room ** In most areas with cold winters, a home furnace will need to generate between 40 to 45 BTUs per square foot**. Using this information, you can get a rough estimate of your required furnace size based on your home's square footage A rough standard measurement that you can use is 200 to 250 watts per foot. For example, to calculate the baseboard length for a 300-square-foot room that requires 3,000 watts, you would divide the required watts by 200 and 250 (the range of watts required per foot). Click to see full answer. Besides, how do I calculate baseboard heat With a Manual J report in hand, you'll know exactly how many British Thermal Units (BTUs) of heating and cooling you need for your home. Method 2: Square Footage Measurements. You can also get a rough estimate by looking at the square footage of your house. This chart is a general guideline that covers tiny houses to average size homes

The radiant heating system in Dan's house and mine was dependent on it. Quote, An uncovered concrete slab floor panel having 3/4 pipe or tube on 12 centers with an average water temp of 120°F will deliver 50 BTU's per square foot of panel. So Jed, there's the hook. Better luck next time * 50 - 150 sq*. ft. of floor area per ton 225 sq. ft. of floor area per ton 250 sq. ft. of floor area per ton Beauty Shop School Classroom Bowling Alley 180 sq. ft. of floor area per ton 250 sq. ft. of floor area per ton 1.5 - 2.5 tons per alley Department Store Basement Main Floor Upper Floor Small Shop 350 sq. ft. of floor area per to For cooler climates, a very broad estimate of furnace sizing is to select one that generates 40 to 45 BTUs per square foot. At 40 to 45 BTUs per square foot, you'd need a 100,000 to 112,500 BTU.. Heating BTU Calculator When shopping for heaters, many people make the mistake of choosing the wrong size for their actual needs. Given all the different options available for heaters -- space, vented, gas, console, and more -- narrowing down the choices can be a great way to ensure that you are choosing the best option

- Boiler BTU Calculator - Boiler Sizing Calculator - Boiler Sizing - Boiler BTU Calculator Low Temperature Heat (e.g. Radiant Heat) High Temperature Heat (e.g. Baseboard, Fan Coils, Radiators) Q2 What is the square footage of your home (the area to be heated)? This field is required. Sq.ft. Q3 Location: Please select the city closest to your.
- This HVAC Load Calculator quickly estimates the size of your heating and cooling system in BTU's. The heat load estimate is based on your climate region, total square footage, number of rooms or zones you want, ceiling height, insulation type, number of windows and doors. This HVAC calculator is the closest estimate to the actual Manual J calculation done by HVAC pros
- Calculate the cubic footage of the space to be heated by multiplying building length x width x ceiling height. A 30 x 40 pole barn with 14 foot average ceilings* will have (30x40x14=) 16,800 cubic feet of space to heat. Then multiply the cubic feet times the insulation factor to get BTUs required to properly heat the space

In terms of a heater, the BTUs refer to the amount of heat that the unit can produce. When selecting a patio heater, higher BTUs mean higher heat output. However, that doesn't mean that you want the patio heater with the highest number of BTUs. If you have a small patio, you don't need a heater that's designed to heat 2,000 square feet of. * Room Size BTUs Needed; 150 - 250 sq*. feet: 6,000 BTUs: 250 - 300 sq. feet: 7,000 BTUs: 300 - 350 sq. feet: 8,000 BTUs: 350 - 400 sq. feet: 9,000 BTUs: 400. 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 of heat. Variables Let's talk about all of the variables that come into play when selecting a new air conditioner system or furnace Length x width x height = cubic feet National Fuel Gas Code allows 50 cubic feet of air for every 1,000 BTU's. This requirement is sometimes referred to as the 1/20 rule, because 1,000 BTU per Hour divided by 50 cubic feet or, for each cubic foot of room volume, you can install 20 BTU/Hr. The BOCA code is instead of 50 cubic feet 40 cubic feet The first factor you should consider is your home's square footage. Bigger homes, generally speaking, require more BTUs to heat. Keep in mind, however, that this is just a starting point. Below are the BTUs required for homes of certain sizes. 1,200-square-foot house: 36,000 to 72,000 BTUs; 1,500-square-foot house: 45,000 to 90,000 BTUs

First you need to work out your total Btu per heating degree day: (Btus per heating degree day per sq. ft.) x (Total sq. ft. in home) = Total Btu per heating degree day Next, you need the number of heating degree days across the entire heating period. You can normally get this information from bills or from your local weather service BTU/Hour Square Foot : The BTU per hour per square foot is a unit of heat flux density which is a US Customary and British Imperial units. Its symbol is BTU/h•ft². Kilowatt/Square Meter : The kilowatt per square meter is a unit of heat flux density, which is a decimal multiple of the derived unit of watt per square meter. Its symbol is kW/m². One kilowatt per square meter is equal to 1000. 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. If you're still unsure which system size is right for you, please e-mail us or call our toll free number at 1-855-634-5588 This is in addition to the 270 Btu/ft3combustion zone net heating value (NHVcz) limit [40 CFR 63.670 (e)] that applies to all flares. In the case of air flares though, NHVcz = NHVvg (Vent Gas Net Heating Value). I know, it's confusing. The other flavor of assist air defined by EPA is called pre-mix air The British Thermal Unit (BTU) is the amount of energy needed to heat a single pound of water by 1°F. 1 BTU is equivalent to 1055 joules. Put, the higher the BTU output, the hotter the radiator or heated towel rail is going to be

Area To Be Cooled: Capacity Needed (BTUs Per Hour) 150 to 250 square feet: 6,000 BTUs: 250 to 300 square feet: 7,000 BTUs: 300 to 350 square feet: 8,000 BTUs ** BTU Charts Furnace Output and Air Conditioner size for a Bungalow Bungalow Area [sq ft]* 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 Readmore**. Call Us Today 1.844.9FURNACE (387622 Heat transfer coefficient is measured in the SI system as watts per square meter kelvin or W/(m²·K), and sometimes in equivalent units of watts per square meter degree Celsius or W/(m²·°C). Phase change: as heat is applied to the ice, it changes from solid to liquid, becoming water

If you have a building that is 3,500 square feet with 10 foot ceilings (35,000 cubic feet), and you want the temperature to rise 30 degrees, and your building has all doors, windows and a roof, but no insulation, then you will need 84,000 BTU/hour to heat that area to the desired temperature Greenhouse Heater BTU Calculator . If you need to purchase a greenhouse heater, this calculator will help you decide on the size of heater needed for your greenhouse, based upon your climate, desired minimum greenhouse temperature, and the greenhouse covering used ** 1-1/4″ Pipe = 12 GPM = 120,000 BTU/hr**. 1-1/2″ Pipe = 20 GPM = 200,000 BTU/hr. 2″ Pipe = 45 GPM = 450,000 BTU/hr. Maximum output radiant floor = 35 BTU / square foot; Typical output snowmelt system = 125 BTU / square foot; Estimate for heat loss of New Building = 35 BTU / square foot; Estimate for heat loss of Old Building = 50 BTU.

** 2000 square feet of Energy Star grade new construction but with lots of windows = 35 BTU's per sq ft**. is 70,000 Btu Load. Then, to calculate the output on a hot water boiler, multiply its efficiency rating by its listed input rating for the actual Btu output of heat. An example of a medium efficiency boiler Warmboard reaches a surface temperature of 65º F and is outputting 10 BTUs per sq ft in just about 20 minutes. Meanwhile, Quik Trak took 1 hour and 9 minutes to reach the same output. By that time, Warmboard is producing 16 BTUs/HR/SF (British Thermal Units per hour per square foot)

- g from the sun shining through the window glass. The simple number we would like is a number of btu's per hour per square foot of window. Then you multiply by the total square feet of windows and you.
- es the energy output of a heating unit. In general, the higher the BTU the greater the performance
- utes in an hour (60

- At just over 71 BTUs per square inch, our little Char-Broil does just fine. In fact, there are plenty of small grills out there that put out ~70 BTUs per sq. in., and people rave about them. There are also grills that cost $500 and up that put out less than 80 BTUs per sq. in., and people rave about those, too
- g a no
- A BTU is a British Thermal Unit, a unit of measure which is the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit. Heaters are typically rated in either BTU/hr or kW (kilowatts). 1 kW is about 3,412 BTU/hr
- The average total energy used per square foot of commercial buildings showed a statistically significant decrease since the 2003 CBECS, from 91.0 thousand Btu per square foot to 80.0 thousand Btu per square foot . The average electricity use per square foot remained about the same since 2003, but decreased for natural gas

Window air conditioners typically have a cooling capacity ranging from 5,000 to 12,500 British thermal units (Btu/hr.). As a rule of thumb, an air conditioner needs 20 Btu for each square foot of. If your heat loss calculation shows you need 10,000 matches in an hour and your available floor area is 1000 sq. ft. then your flux = 10,000/1000 = 10 Btu/hr/sf. Imagine the equivalent heat of 10 matches burning per hour every square foot BTU/Hour Square Foot : The BTU per hour per square foot is a unit of heat flux density which is a US Customary and British Imperial units. Its symbol is BTU/h•ft². Watt/Square Meter : The watt per square meter is a derived unit of heat flux density in the International System of Units SI. Its symbol is W/m². One watt per square meter is equal to 1J/s•m²

Simple Calculating of BTU Per Square Foot For each kitchen, add 1,200 Btu. The result of this calculation gives you a rough idea of the minimum Btu of cooling capacity your air conditioner must have. If you have a 5,000-square-foot space, divide that number by 500 to get 10. 10 times 12,000 is 120,000 Btu. If four people work there, add 1,520 (380 Btu x 4) ** In warmer climates, you may need only 30 to 35 BTU per hour per square foot to heat your house adequately**. In colder climates, you may need up to 50 to 60 BTU/h/ft. In general, the further from the equator you live, the greater the number of BTU/h/ft you need, but weather patterns and geography modify this somewhat A reasonable standard of energy efficiency is 5 BTUs per SqFt per HDD for space heating and 75,000 BTUs per unit per day for water heating and other baseload uses. You can meet or beat these standards without breaking the bank and more than pay back the incremental renovation costs with the savings from lower energy bills

While inside your home we first consider the square footage of the room/area and using this guide determine which sized heat pump will suit that space: 9,000 BTU - ~250 sq.ft to ~450 sq.ft; 12,000 BTU - ~550 sq.ft to ~800 sq.ft; 15,000 BTU - ~750 sq.ft to ~1100 sq.ft; 18,000 BTU - ~850 sq.ft to ~1250 sq.f Wonen & Keuken. Gratis levering vanaf 20 euro. Nederlandse klantenservice

An output BTU measures the heat (or cooling) created. How Many BTUs Per Square Foot? When choosing a heating or cooling appliance, room size is perhaps the most important consideration. An under-sized unit won't get the job done BTU/hour square foot: 1 = 0.016666666679041 : BTU/minute square foot: 1 = 7.5346106286424E-5 : calorie/second square centimeter: 1 = 0.55555555579037 : CHU/hour square foot: 1 = 11356526.8008 : dyne/hour centimeter: 1 = 113565.268008 : erg/hour square millimeter: 1 = 12.969487841716 : foot pound/minute square foot: 1 = 0.27124598261252 : gram. Convert Watts into BTUs A single watt is equal to 3.41 BTUs. Multiply your total wattage by 3.41. A 144-square foot room with 1,440 watts will require a space heater that provides 4,910 BTUs

This graph represents the amount of heating required (in BTU's) per area in square meters, the vertical scale is area from 15 - 135M 2 in increments of 15M 2. The horizontal scale represents heating required in BTU's from 6000 to 60000, increments are not linear but this is just a guide This question is nearly impossible to answer given the tremendous variety of building types, materials and features. Years ago, heating contractors in the cooler parts of the USA used a simple formula to estimate heating needs. This formula was ne.. The house will have concrete floors with radiant heating. it will have five zones. My installer tells me to figure that I need a boiler that will have a capacity of 25 btu's per sq. ft. of house or approximately an output of 105,000 btus. I've heard from other sources that I should expect to have a capacity of less than half that square foot of radiation. Step #3. Multiply the total square foot of the radiator by the BTU output per square foot according to the heating supply temperature, Chart #3 Please note that a house heated with all cast iron radiators, the supply temperature generally does not exceed 140F or 90Btu's per square foot output for the cast iron radiator Ductless splits cool a larger area at the same BTU level than do window air conditioners and portable air conditioners. Below is an approximate sizing guide: 350 square feet = 9,000 BTU 500 square feet = 12,000 BTU

- Simply measure the width and length of your room in feet then multiply the two together. For example: The length of the room is 25 feet long and the width is 20 feet wide. Square Footage= 25ft. X 20 ft.= 500 square feet. Then simply match it to the chart on the left to find the type of unit that is right for you
- The amount of BTUs of heat you need depends on the type of climate in your region. Old homes in Michigan need 60 BTUs per square foot, and new homes need 50 BTUs. In warmer areas of the country, you would only need 30 BTUs per square foot for a new house and 35 BTUs for an old one
- The .04 represents the typical pipe friction rate per 100 feet of pipe. Example: Say a home has 90 feet of pipe in a hydronic heating system. The formula would be 90 feet x 1.5 x .04 = 5.4 Feet of Head. Once we have calculated the pump pressure, we can use the pump curve to plot pump GPM
- A typical snow melting system should have a heating capacity of at least 100 Btu per hour per square feet (320 W/m2). This would melt up to 1.5 inch/hour (4 cm/h) snowfalls. Solutions of 50% water and 50% antifreeze are common, but the solution used should always be adapted to local temperatures and system conditions
- One BTU will raise temperature 1 degree per 55 cubic feet, so divide by 55 (720,000/55). In this example it requires 13,091 BTU to change the building's air temperature by 60 degrees. Step 4 Estimate the actual system heating or cooling capacity needed
- Calculate the square footage of the room by multiplying its length by its width. Multiply the area by 25. This answer is the approximate British Thermal Unit (BTU) output you need for that room, which is how ductless heat pumps are sized
- Generally in a Californian climate you will need 25-30 BTU per square foot. BTU is a measurement of a furnace's heat output. 1500 sq feet by 25 BTU gives us a 37,500 BTU furnace. The same calculation will not work for your friends or family in colder states, who need a more powerful furnace to counter-act their harsher winters

Rough rule of thumb has been 100,000 btu per bay here in Idaho. It is under I've prevention sizing on the Huron valley website. Average ss bay is around 500 square feet plus heated aprons if you have them. Minimum would be around 75,000 btu per bay it looks like The specific measurement used for solar hot water panels is BTU per square foot per day. It may be referred to simply as BTU per day in specifications - but both the numbers are the same measurement. The higher the BTU number specified, the higher the water heating efficiency. Gas Stoves and Grill

Therefore, for practical application, it makes sense to think of safely expecting only around 2000 watts per meter 2 per average winter day or 560 Btus per full average day per square foot of collector area. This is true whether the application is for making electricity (PV) or in heating water or air for a residential application The amount of BTUs of heat you need depends on the type of climate in your region. Old homes in New England need 60 BTUs per square foot and new homes need 50 BTUs. In warmer areas of the country, you would only need 30 BTUs per square foot for a new house and 35 BTUs for an old one Unit Descriptions; 1 Square Foot Equivalent Direct Radiation: Exactly 240 BTU IT /h. Approximately 70.337057 Watts (SI). 1 BTU (International Table) per Hour

The average propane heater's capacity is 40 BTUs per square foot. For example, in a 250 square foot apartment, a 10,000 BTU heater would be sufficient. Switching to propane gas can be an excellent investment to power your home. Installing a propane heater is a great way to save money on heating costs • The house has 2,000 square feet of living space. • 80,000 BTU's of heat per square foot are required to heat the house for the winter. • Natural gas is available at a cost of $5.00 per thousand cubic feet. • One cubic foot of natural gas supplies 1,000 BTUs of heat energy. • The furnace is 80% efficient. a

Btu and Tonnage Calculator. The size (cooling capacity) of your air conditioner is determined by the amount of Btu (British thermal unit) and the Tonnage (12.000 Btu = 1 Ton). What amount of Btu and Tonnage should your air conditioner have in order to properly cool your home BTU (British Thermal Unit) is a unit of measurement for heat. For fireplaces, the higher the BTUs, the higher the heat output. But how do you know how many BTUs are right for your home? You can find out by measuring the square footage of the area you want to heat and then finding a fireplace with the right amount of BTUs for the space A 50,000 BTU heater will heat up an 800 to 2,500 square feet. Upgrading to a 60,000 BTU will heat up a room up to 3,000 square feet A few key take aways when it comes to a floor heating system and RAUPanel in particular; Even if you do not pay attention to floor coverings you can get 22 BTU's per square foot of heat as I did. If you do pay attention to floor coverings you can get a significantly higher BTU output

Latent Heat (Column 5) in Btu. It is the total heat in steam above 32°F. Specific Volume of Liquid (Column 7). The volume per unit of mass in cubic feet per pound. Specific Volume of Steam (Column 8). The volume per unit of mass in cubic feet per pound. Properties of Saturated Steam (Abstracted from Keenan and Keyes, THERMODYNAMIC PROPERTIES O A commonly accepted old estimate is that an HVAC unit should provide one ton (12,000 Btu) of cooling for each 400 to 500 square feet of building area. However, this rule does not take into account local climate and how well a house is sealed and insulated. In a very efficient house, one ton can condition 800 to 1,000 square feet Unit Descriptions; 1 BTU (International Table) per Hour: Approximately 0.293 071 Watts (SI). 1 Square Foot Equivalent Direct Radiation: Exactly 240 BTU IT /h. Approximately 70.337057 Watts (SI) British Thermal Units or **BTUs** are a measurement of the energy required to raise the temperature of one pound of water by one degree. In other words, the amount of heat that the system needs to remove from the space in summer, and the amount of heat that the system needs to bring to space in the winter season

According to Madison Gas and Electric, warehouses in the U.S. use an average of 7.6 kilowatt-hours (kWh) of electricity and 20,900 Btu of natural gas per square foot annually, (Madison). Even if you're only heating a 20X20 ft. warehouse, which would be incredibly small, that's still an average of 3,040 kilowatt-hours and 8,360,000 Btu. With the cooling capcity chart, find your room's square footage in the Area To be Cooled (square feet) column, then use the Capcity Needed (BTUs per hour) column to choose the correct cooling capacity for your room air conditioner. Cooling capacity is shown in British thermal units (BTUs) per hour

Estimated Cooling Load (Tons): .25 to .35 tons per 100 square feet of total building area: Estimated Heating Load (MBH): 1.5 to 2.5 MBH per 100 square feet of total building area: Estimated CFM: 75 to 125 cfm per 100 square feet of total building area: Chilled Water GPM: 2.4 gpm per ton of coolin First, the maximum surface temperature of a radiant floor is limited to around 87F (about 45 Btu per square foot). If the floor is operated above this temperature, the occupants are likely to complain of uncomfortably hot and sweaty feet In most cases 1-2 radiators will suffice, however for larger rooms you may require more. The amount of BTU's required per radiator will depend on how many radiators are within the room - so divide the total BTU requirement by the number of radiators to calculate the average BTU's required per radiator BTUs, or British Thermal Units, are a measurement of thermal (heat) energy. The general rule of thumb is to choose a unit at a measurement of roughly 20 BTU per square foot of living space. Of course, ceiling height could also play a role, which is why cubic measurements are wise, and the number of people sharing the space is also important.

*Equivalence of direct radiation of heating surface based upon the standard heat emission of 240 BTU per square foot per hour. Stock sizes available for immediate shipment. Assemble 5 section intermediate with 3, 5, 7 or 9 section stock size to make a custom size Historically, grill buyers were told to look for a grill that produces around 100 BTUs per square inch. BTUs—standing for British Thermal Units—is a traditional way of measuring thermal output of a heating appliance. Technically, one BTU is the amount of energy required to heat one pound of water by one degree Fahrenheit Q: HOw many square feet will a 1500W heater heat? A: Assuming a ceiling height of 8 ft. and the room is properly insulated in a climate above 68ºF, a 1500W heater will heat a room of 150 sq. ft. comfortably. Q: What is BTU? A: A BTU (British Thermal Unit) is the amount of energy needed to heat 1 pound of water 1 degree Fahrenheit To Cool 340 square feet, you need an 8000 BTU unit To Cool 400 square feet, you need a 9000 BTU unit To Cool 450 square feet, you need a 10,000 BTU unit If that room is a kitchen, which generates heat for cooking through the use of ovens, stove tops or grills, add at least 4,000 BTU's to the unit's cooling capacity. If your room has. ELECTRICITY ONLY average per household • Pennsylvania households consume an average of 96 million Btu per year, 8% more than the U.S. average. Pennsylvania residents also spend 16% more than the average U.S. households for energy consumed in their homes. • Average electricity consumption in Pennsylvania homes is 10,402 kWh per year

120 Gallons * 583.8 BTU's per Gallon = 70,056 BTU's per Hour Solar Constant (measured outside the earth's atmosphere by satellite) is about 1.3 kilowatts (1,366 watts) per square meter (kW/m²) The maximum value is about 1 Kw (1,000 watts) per sq meter, measured at the earth's exposed surface, when the sun is directly overhead Generally, a unit rated at 60,000 Btu can heat up to a 2,000-square-foot home, and a unit rated at 42,000 Btu can heat up to a 1,300-square-foot space. Before installing a wood-fired heating system, contact your local building codes department, state energy office or state environmental agency about wood-burning regulations that apply in your area square foot of pipe surface per hour per F temperature difference between pipe and air. Thus, with a 350°F tem-perature difference the heat loss is 1291.5 (350 x 3.69) Btu's per square foot per hour. Using the lineal foot factor of .916 given in the table, this can be converted to 1183 Btu's per hour per lineal foot of pipe (1291.5 x .916) The specific heat of ice is about .51 BTU/lb. Since snow is made up of ice, a pound of snow will require about 0.51 Btu to raise it one degree F. If 8 inches of snow weighs 5 pounds and is at 22 degrees F, Then it will take about 26 BTU per square foot to raise the snow itself to just below the melting point (32 degrees F) Heating BTU Per Square Foot Chart, Air Conditioner BTU per Square Foot, Air Conditioner BTU Chart, Window Air Conditioner BTU Chart, AC BTU Chart, AC BTU Room Size Chart, Air Conditioning BTU Chart, Mini Split Sizing Chart, What BTU Air Conditioner per Square Foot, Mini Split Heat Pump Sizing Chart, Portable Air Conditioner BTU Chart, BTU per Sq FT Heat, BTU per Person Chart, Air Conditioner.

The heat source — typically a water heater or boiler — can be powered by any energy source that satisfies the systems Btu requirements, including natural gas, electricity, oil, wood, or even solar collectors. For residential and light commercial snow melting, Bailey recommends providing about 100 to 150 Btu per square foot of slab surface 2000 square feet; X .40 heating factor (from the chart above) 80,000 Btu actual output; Then, to calculate the output on a gas furnace, multiply its efficiency rating by its listed input rating for the actual Btu output of heat. For example, if a furnace has a listed input rating of 100,000 Btu's and an efficiency rating of 80%, it will produc