On Wed, 08 Dec 2010 15:10:46 +0000, AlanG wrote:

It would probably be cheaper in the long term to get rid of E7 and buy
a mobile gas heater and a bottle of gas.
http://www.gasproducts.co.uk/acatalo..._Heater.ht ml

One such gas heater will heat an average living room perfectly
adequately. In a home that is unoccupied during working hours on week
days, a 15 Kg bottle will last about 2 weeks in midwinter (depending
on the room insulation).

A 15Kg re-fill costs a bit under £30 today. So you will be spending
about £60 per month to heat your living room.

--
Cynic