I often get asked the question (in general chit-chat with customers), what is cheapest way, to heat up and maintain a safe comfortable temp, in a single living room and bedroom (terraced type medium size house - or flat usually). More often than not from older customers!....hould they chose gas central heating (existing newish / new condensing boiler or combi) with all other room TRV's turned off, OR 2 smallish halogen heaters, one in each room, OR electric rad, OR go back to paraffin, or bottled gas. To me this indicated the public haven't got a clue. That's NOT to say they are ignorant, but simple (yes I know there ar several factors in play) comparisons are just not out there for worried, hard-up people: only the (cynical me coming next) government or corporate led marketing messages, designed to steer all of us in the 'desired' direction. Solar is a case in point here. Whilst our good and great 'leaders' push the next greatest thing at bargain prices and benefits (remember gas for cars or cheap diesel) to get you hooked up, the 80 year old pensioner who is just trying to stay alive doesn't know which way to turn.