# how to calculate btu

1 BTU = 1,055 joules, 252 calories, 0.293 watt-hour or the energy released by burning one match. Once you have the total square footage, just multiply that number by 20 to find how many BTUs per hour you'd need to heat or cool the space. For example, if you're trying to heat or cool 1,000 square feet, you would multiply 1,000 … One BTU will raise temperature 1 degree per 55 cubic feet, so divide by 55 (720,000/55). A BTU is an abbreviation for B ritish T hermal U nit, which is the amount of energy required to raise 1 pound of water 1 degree Fahrenheit at sea level. Then, add the square footage for each room together. If you need a 60-degree temperature change, multiply 12,000 times 60 (720,000). L * l … BTU stands for British Thermal Unit, and is the standard way to work out how much heat output is required to keep your room warm. BTU definition ‘British Thermal Unit’ BTU denotes the amount of energy to raise 1 pound of … BTU is often used as a point of reference for comparing different fuels. Even though they're physical commodities and quantified accordingly, such as by volume or … If you remember any of your science lessons in school or actually want to know the technical detail, 1 BTU is equal to 1055 joules and is the amount of energy needed to heat 0.45kg (1lb) of water by -17°C (1°F). The BTU requirement will be for the whole room, so you need to calculate the total amount of space the room covers. Calculate how many BTUs you need to heat a room or even a house with a wood-burning, pellet or gas fireplace, insert or stove. Our BTU (British Thermal Units) calculator will help you to work out the heat requirement for your room, and recommend the number of radiators you will need to comfortably heat it. In this example it requires 13,091 BTU to change the building's air temperature by 60 degrees. 1 watt is approximately 3.412 BTU per hour.

To do that you need to measure the length, width and height of the room so you can then calculate the cubic footage of each room by multiplying the length, width and height of the room. To calculate BTU per square foot, start by measuring the square footage of each room you want to heat or cool. A British Thermal Unit (BTU) is a measure of heat output from a radiator.

What is a BTU?

BTU Calculator & BTU Formulas For Water Circulating Heat Transfer. Depending on the size of your room, the number and type of windows and what the room is used for, you'll need more or less heat. This BTU Calculator will determine what hearth product size is required with only a few steps and information such as square footage (sq ft). Of course, BTU is not just calculated by the desired temperature, but also takes into account room size.

A BTU is a relatively small amount of energy... about equivalent to the heat generated by striking 1 stick match. Things you need to consider before calculating the BTU output for your room: Ø Measure the height, width and length of your interior space. It is approximately the energy needed to heat one pound of water by 1 degree Fahrenheit.

If you have a … If your rooms are unusually shaped, separate them into rectangles and then add them together to get the values.