Looking for home move, and I see energy ratings for the homes, with house I like at bottom of list. Looking at the house I can see a number of factors. Sloping ceilings where clearly no loft above so limited space for insulation, and to do anything would involve likely removing and refitting plaster board? A conservatory with no door to rest of house, so can't be closed off either to stop losses in winter or gains in summer. A stair case direct off down stairs room so heat will likely rise to upper rooms. And wet under floor heating not a clue if insulation fitted below. However when we raised the issue were told due to original lighting and this has now been addressed. That seems odd, I have known where previous owners have taken bulbs with them, so seems odd that lights could be responsible for the low reading, I am inclined to reject house because of the work I see as being required to bring it up to reasonable standard specially with oil fired central heating which is not cheap to run. Comments please.