Btu Calculator - btu calculator room

BTU stands for British thermal unit - the traditional unit of energy used in the UK. BTU can be used as a heating measurement to help you work out the heating requirements of your home's bathroom, kitchen and various other parts of the home.


BTU stands for British thermal unit - the traditional unit of energy used in the UK. BTU can be used as a heating measurement to help you work out the heating requirements of your home's bathroom, kitchen and various other parts of the home.


Basically one BTU is equivalent to about the same amount of heat needed in order to raise the temperature of one pound of liquate by one degree Fahrenheit - at the maximum density. This will normally happen when the temperature reaches up to 39.1 degrees.


BTU is the standard and accepted abbreviation for British Thermal Unit; even though the name sound more regional, but BTU isn't regional rather it is the accepted standard unit of energy used all over the world and not just in Britain alone.


One BTU can be defined as the number or amount of heat needed to raise the temperature of one pound of liquid water by 1 degree Fahrenheit at its maximum density. BTU in a more correct sense is referred to as BTU per hour, though for convenience's sake, the term has over the time been coined to BTU/hr.


 BTU and the other energy measurements


1 BTU = 1055 joules


1 BTU = 251.9 calories


1 Watt = 3.413 BTU


1 kilowatt = 3413 BTU


Electrical heating equipment is in no way the sole generator of BTU. Human bodies Also do generate a good amount of BTU. This amount of BTU generated by human varies and that depends solely on the type of activity the person engages in:


State of Activity and BTU/hr generated


- Asleep = 250

- At rest = 350

- Office work (seated) = 420

- Office work (standing) = 640

- Factory work (heavy) = 1600

- Ten-Pin Bowling = 960

- Exercise (heavy) = 1800

- Walking (3mph) = 1040




As far as the BTU calculator is concerned it works by taking some or all of the below-listed measurements and factors into consideration and ways by which they can be used to calculate the total number of BTU your heating systems will need to generate:


Length of the Room

Width of the Room

Height of the Room

Dining Room and Lounge

The Bedroom

Kitchen and Common Area

North Facing Wall

French Windows

Double Glazing


It is always vital and important to know the size and the shape of your air conditioning unit so it can fit in precisely and adequately cool the whole house. There are several online air conditioning calculators that can give a reliable measurement for the amount of the BTU your house requires.


BTU is the commonly wide measurement of air conditioning power whether for home or industrial indicates the amount of air, in cubic feet. Which may then go-ahead to alter its one degree in one hour.


Let's take, for instance, an air conditioner with 5,000 BTU should be able to decrease the temperature of 5,000 cubic feet of air by one degree in one hour. The air conditioning calculator indicates that the air conditioner could be used in a room that has a dimension of between 200 to 300 square feet.


The quality and amount of room insulation are equally as important and they play a vital role in the type of air conditioner that is needed. One other factor that needs to be taken into consideration is the fact that the kitchen also can increase the room temperature of the whole house.


In order to determine the correct and proper size of the air conditioner, you should always ask the manufacturer to calculate the BTU required for your home or download an online calculator and do it yourself.


You should also give some room for consideration. For example, if your air conditioning calculator advises you to buy something around 10,000 BTU units, then it is more advisable if you buy a home air conditioner ranges from around 10,000 to 12,000.


This would make sure it is not pushed too hard or overstressed and would also ensure it produces cool air and maintain the proper room temperature. It also can lower your electricity bills. Since it will not work much harder and for longer periods of time,


However, it is important to always have it mind that the figure your BTU calculator provides is what the radiator will put out in an average room with no external factors. For example, if you live in a warm climate, on a hilltop that is completely exposed to the elements or in a region with snowfalls, there will be a need to compensate for these factors.


You have to bear in mind that it is always important to overestimate your needs than underestimate, most especially when it comes to heat generation because it is ultimately possible to lower a radiator's maximum heat output but you can't possibly force it to generate more heat than it's physically capable of


Listed below is a rundown of  BTU equivalents of various fuels for comparison:


1 gallon of #2 oil = 140,000 BTU


1 barrel of crude oil, an equivalent of 42 US gallons=5.80 million BTU


1 gallon of LP gas=91,500 BTU


1 gallon of Kerosene=135,000 BTU


1 cubic foot LP gas = 2,550 BTU


1 cubic foot natural gas = 1,000 BTU


1 KWH electricity= 3,413 BTU


1 therm. natural gas = 100,000 BTU


1,000 BTU = 1 lb of steam


1 ton of coal = 28,000,000 BTU


1 cord of firewood = or less 20,000,000 BTU


1 pound of firewood = or less 8,000 BTU


Firewood BTU as given above is based on air-dried wood logs taken an average common US wood species into consideration.


Physical units reflect measures of distances, volumes, areas, weights, heights, impulse, mass, force, and energy. Every energy type is measured by different physical measuring units: for instance cubic feet for natural gas; barrels or gallons for petroleum; kilowatt/hrs for electricity tons for coal. To compare different fuels, there is a need to convert the measurements to the same units.