Which is cheapest Oil or LPG

[johnjones323]

My lpg boiler is over 15 years old and on it's way out. I can't find any information on the net to help me out.

1. What is more efficent 1 littre of LPG or Oil. Last time I bought LPG I paid 0.35p per littre, I think Oil was at that time around 0.45p per littre. So basically need to know which is cheaper to run. Plus I pay £75 a year for the retal of the tank.

2. Combi boiler or the style with a Tank (I don't use much tap water because I have a dishwasher and a shower, probably heat the water 3 times a week for a bath.

3. How would you change LPG suppliers, I don't seem to find any websites that state there current prices?

If anyone could help me out with my questionns you would be life savers.

Many thanks

 

[kevplumb]

oil

theres a load going cheap in the gulf

seriously oil

 

[Tommowlaes]

http://www.oftec.co.uk/comparative_costs.htm

 

[doitall]

Gas dearer than oil

I think someone put the dots in the wrong place.

 

[TicklyT]

Consider the units used in your calculations, or you could end up comparing apples and bananas.

LPG has a higher energy density than oil in Joules per Kilogram, typically about 46 MJ / Kg, with oil at about 42 MJ / Kg.

But being lighter than oil, the energy density of LPG in Joules per Litre is is lower at about 26 MJ / Litre. Oil is about 38 MJ / Litre.

This calculator seems to give a different answer:-
http://www.eskvalleyenergy.org.uk/page13.htm

Of course, the results couldn't possibly be skewed by the interests of whoever sponsors the websites, could they.....

 

[big-all]

unless the stats include all costs and discounts avalable then they are meaning less
its easy to take the most expensive gas you can find and use that in the comparason when in actual fact the amount after duel fuel on line loyalty discounts will be 20 to 40% cheaper

 

[doitall]

If you install 3 boilers in the same house, NG will work out half the cost of oil, with LPG 30-40% dearer again