Hi guys..even though Town gas maybe more expensive..i think it should be safer..if you using LPG gas, there will be constant shifting of the tubing and those loose parts when you change cylinders. After a while, there may be loose parts and there might be leaking gas. The danger with LPG gas is that it is heavier than air and will gather at sumps, pits and at ground level...once a pilot light is ignited, if there is enough fuel air mixture, you might get a flash fire or explosion... Town gas is different in that it is lighter than air...even if there was a leak, the gas should be able to disperse via windows into the surrounding..also, there should not be any loosened connections since it is fixed on all the way... Just my 3 cents worth on this...not claiming fees from city gas to say this...haha..I will definitely use Citygas even though it maybe a bit more expensive...rather pay more for safety.. DLIM, X 10 times still very small lei...haha...think its less than 10 cents...haha