Gas is traded all of the same 42,000-gallon (1000 barrels) contract size as heating oil. Additionally it is traded in dollar and cents, each and every the companies are trading at $2.00/gl, the contract will possess a value of $84,000 ($2.00 x 42,000 gal = $84,000). Just as the rest with the energies, this is the high dollar value contract and quite leveraged. The daily limits here equal a move of $10,500 per contract or $0.25/gl.
Never point it at someone or get too close to what you're cleaning (you can acquire hit by flying debris or water bouncing back down the surface). Ideally, wear safety glasses and close toed sneaker. If using a noisy gas or 1000kw diesel generator powered model, should certainly wear proper hearing protection.
An 18 KW in natural gas is very much like a 20 KW in propane. Actually, natural gas is much less powerful as propane. Propane is more roborst. If you have a 20 KW in propane, it will remain 20 Kw. In natural gas, it drops to 18 KW. It drops 2 KW.