Well, one kitchen match is 1 BTU.
4800 BTUs will 150 square feet.
A small room is about 5,000 BTUs. Most people don't have a room that would require more than 10,000 BTUs.
90,000 BTUs - the 090 is what tells you the BTUs of the unit.
5,000
There are approximately 6,700-8,300 BTUs per pound of lignite coal. A ton of lignite coal contains 20-24 million BTUs.
1 kilowatt is equal to 3,412 BTUs (British Thermal Units).
6,520 Btus
There are 1078.9 BTUs.
2000
27,304
The answer depends on the city. Somewhere like Colombo (Sri Lanka) will probably require 0 btus.
1 therm of gas is equal to 100,000 BTUs (British Thermal Units).