This is a type mismatch since BTU (or at least the only BTU I know of), standing for British Thermal Unit, is a measure of heat energy, whilst cubic meters are a measure of volume.
It is possible to express energy as pressure x volume however:
1 BTU is approx 1055 Joules of energy => 1055 Pa/m2.
For more information on these two terms, take a look at:
http://en.wikipedia.org/wiki/British_thermal_unit
http://en.wikipedia.org/wiki/Joule
1 BTU /hr/cubic foot= 105506 joules/hr/ cubic foot now, 1 cubic foot = 0.0283 cubic metres, so 1 BTU/hr/ cubic foot= 105506/0.0283 = 3728127.2 J/ hr/cubic metre.
One would need to know what the fuel is to give you an answer.
One BTU is equal to one degree Fahrenheit in the sense that it one BTU is the amount of heat required to raise a pound of water's temperature by 1 Degree Fahrenheit. BTU is short for British thermal unit.
Propane has a heat content of 19,900 btu/lb net. This means that a 36000 btu/hr heater needs to burn 1.809 lbs of propane per hour to produce this amount of heat. A 40 lb bottle will last about 22 hours if the heater runs continuously.
It is a measurement of heat energy or the output of a heating or cooling device. A British Thermal Unit is the amount of energy needed to raise or lower the temperature of one pound of water by one degree F.
About 36,000 BTU/liter
About 115K BTU per gallon.
1 cubic foot of natural gas can be burned to generate about 1000 btu of heat. A 105000 btu/hr appliance would therefore require about 105 cubic feet of natural gas per hour; this is 0.1 thousand cubic feet, or 0.1mcf/hr.
Ther are 1,050 BTU in one cubic foot of natural gas.
To convert Cubic Feet to Btu's, multiply by 1,000 1 CF = 1,000 Btu's
How to convert Cubic meter to BTU
2500 btu per cubic foot of vapor.
32 BTU = 24,901.416 foot-pounds.
at 100% efficency 1 cubic foot of propane ( it's no longer liquid or LPG ) = 2668.3431 BTU's
Use this formula: foot-pounds per minute x0.0771 = BTU per hour
Approx 1000 BTU per standard cubic foot
CMH is a unit of flow rate (m3/hr or cubic metres per hour) A BTU is a British Thermal Unit, a unit of energy that is equal to around 1055 joules. You cant convert the two as they are a measure of different things, but changing BTU (or Btu) to joules will help standardise the calculations.
BTU`s are measured in cubic feet
BTU per hour is a measure of power. Cubic meters is a measure of volume. Perhaps you mean cubic meters of propane, alcohol or some other fuel.