When you purchase a stove, you may find the heat output measured in watts, kilowatts or in British Thermal Units (BTUs). Most of the time the measurement will be given in the number of kilowatts per hour. To convert to BTU output, you need to first make sure you are talking about the same amount of time when you compare measurements. If you know any other measurement of energy output you can convert it to BTU output.
Things You'll Need
- Stove manual or manufacturer's information
- Calculator (if desired)
Determine the energy output of the stove from the label on the back of the unit or from the manufacturer's information. The listing should be in watts for electric stoves and will already be listed in BTUs for gas stoves. Most electric stoves have three sizes of heating elements: a small element using around 1,200 watts, a large element using 2,500 watts or two medium elements using 1,500 to 1,800 watts.
Total the watts for the four heating elements. For example, if you have one heating element of 2,500 watts, two heating elements of 1,500 watts and one heating element of 1,200 watts, your total wattage is 6,700 watts.
Divide by 1,000 to get the total kilowatts of output. In our example, 6,700 divided by 1,000 is 6.7.
Multiply by 3,412.12 to get the total BTUs per hour. In our example, 6.7 times 3,412.12 is 22,861.2 BTUs.
- Photo Credit gas stove image by Christopher Walker from Fotolia.com
BTU Output of Different Types of Wood
As energy prices continue to rise in 2010, more households are switching to wood stoves to heat their homes. It's important to...
How to Determine BTUs on Gas Powered Equipment
The National Fuel Gas Code mandated by the National Fire Protection Agency provides average BTU consumption rates per hour (BTUH) for gas...
How to Convert BTU to KW
British thermal units measure heat energy. And when used to describe the power of heating systems or grills, the term "Btu" is...
How to Calculate the BTU For a Gas Furnace
Whether you want to buy a new furnace or you just want to assess the efficiency of your current one, it is...
How to Pick a Range by Its BTU Rating
Ranges, whether gas or electric, have ratings for the amount of heat that the burners provide on the highest settings. Manufacturers use...
How to Calculate Heating Load
Heat loading involves measuring and evaluating all of the heat sources that contribute to the temperature in a room or office. Many...
How Many Btu to Heat a Square Foot?
Climate, home insulation and living habits are some of the many factors that influence how many Btu it takes to heat a...