Just a quick question, we are due to go camping in a couple of weeks and im hoping that it stays really warm like it is at the moment. The August before last we went for just one night and it was freezing! Literally needed scarves, hats and mittens it was so cold, i thought i might try and cirumvent that this time by taking some sort of heating device to warm up the tent at bedtime, i have looked on ebay and there seems to be two sorts, a gas one and a fan heater (the fan heater has a safety cutout) which do you think would be best (if any?)