"BTU rating" could mean specific energy (energy per mass) or energy density (energy per volume) which are not necessarily the same. Kerosene has a higher specific energy (~48.4 MJ/kg for kerosene vs. 43.1 MJ/kg for diesel) but a lower energy density (33.6 MJ/L for kerosene vs 38.6 MJ/L for diesel).
This analysis assumes jet fuel as kerosene and fuel oil as diesel (both comparisons are generally close to each other). Diesel and fuel oil differ in that diesel has a cetane number specification, which is a measure of ignition delay. Kerosene differs from jet fuel by a few specifications applied to specific types of jet fuel, but most jet fuel is kerosene based.
Note: since the question was asked about Btu and my answer was given in megajoules here is the proper conversion:
1 megajoule (MJ) = 947.81712 British Thermal Units (Btu)
1 US gallon = 3.7854118 Liters (L)
Oil has the higher BTU rating Depends. If it is Liquified Nat. Gas then it has the higher rating.
natural gas
A gallon of jet fuel supplies 126,000 BTU. So...a million BTU is less than 8 gallons.
For the purpose of gas rating 1040 btu's/ft3
It's much more efficient (higher BTU rating in diesel than in unleaded gasoline), and it's much less flammable.
Heptane has the chemical formula of C7H16. It has a BTU rating of 19,163 BTU per pound and a rating of 4,465.8 kilojoules per mole.
12.5 tons
138,700 btu's
The highest heat release of any fuel is that of hydrogen at 62,000 btu / lb. or ~34,445 calories/gram.
For one, they have a higher BTU output and higher constant flame temperature than unleaded fuels. In liquid form, they're less volatile and less flammable than unleaded fuels, but ignite easily when vaporized.
Divide the btu output rating by the btu input rating. Both of these values can be found on the furnace`s nametag.
1 watt is equal to 3.41 btu/h. multiply 1 by 1500 and we get 1500 watts. multiply 3.41 by 1500 and we get 5115btu/h. Therefore we can come to the conclusion that 1500 watts < 45000 btu. 45000btu/h is higher than over 10 times 1500 watts.simplified answer = 45000 btu is hilariously higher than 1500 watts.-Tychusfindlay919P.S. if you meant 4500 btu/h then 1500 watts is higher