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You have to multiply the heat value of the fuel by the efficiency of the combustion unit. For instance, oil is 139,000BTU/gal, and many furnaces have an efficiency of 84%, so for each gallon of oil, you get 116,760 BTU of actual heat. Round that to 117,000 BTU to get the proper number of significant digits.
Different fuels have different heat values. Some have a range, such as wood pellets or firewood, depending on their species or source material. Furnaces range from 50% efficiency or so for a loose woodstove up to 95% or better for a sealed combustion direct vent propane wall heater.
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What is therme?
A unit of heating value equivalent to 100,000 British Thermal Units (BTUs).
What is a therm?
A therm is a unit of measurement used to quantify heat energy. It is equal to 100,000 British Thermal Units (BTUs) and is often used in the context of natural gas consumption or heating systems.
How many btu to heat 1600 sf?
On average it takes about 1,600 BTUs to heat 50 square feet. Multiplying 50 by 1600 equals about 80,000. Therefore, the heating plan of 1,600 square foot are would take about 80,000 BTUs.
What size return air grill for a 48000 BTU heating system?
48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24. 48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24. 48,000 btus is equal to 4 tons of air flow, 12,000 btus per ton. You need 144 sq in per ton. Return grill should be 24x24.
Which fuel is more efficient in a forced air furnace heating oil or kerosene?
The kerosene is a lighter oil. I think you would get more BTUs out of the heating oil. Just make sure that you are using the right fuel for the furnace that you have. Most now days would take heating oil.
How many BTU in one cubic meter of CO gas?
There is no specific number of BTUs in one cubic meter of carbon monoxide (CO) gas. The amount of BTUs in a gas is determined by its composition and heating value, which can vary. However, carbon monoxide generally has a lower heating value compared to other gases like methane or propane.
How many btu's does it take to heat a basement room 150 square feet?
Standard practice holds that it takes 5000 BTUs to heat a room 100 to 150 sq ft Figure on adding another 1000 BTUs for every 50 or so sq ft added. Hence , 400 to 450 sq ft would need about 10,000 BTUs
How many BTUs are needed to cool 1700 sq ft?
The rule of thumb is 2-1/2 tons per 1000 square feet. It is not measured in BTU which is a heating term
What air conditioner has the most BTU's?
With 28,000 BTUs, the Friedrich SL28L30* has the most BTUs.
How many square feet does 4800 btus heat?
4800 BTUs will 150 square feet.
How can I determine how many BTUs I need for an air conditioner?
A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.
How do you tell what ton an ac unit is?
An HVAC system is rated in British Thermal Units (BTUs). For example, a 2-ton air conditioning system is 24,000 BTUs. That's 12,000 BTUs per ton. So a 3.5-ton air conditioner is a 42,000 BTUs.
