Haven't seen any mention of gas fired water heaters. My late grandparents lived in a post-war New Towns house which didn't have central heating - at least until the mid 1980s - so there was a gas fire in the lounge, a hot water cylinder in the airing cupboard and in the kitchen a this gas fired hot water heater which was used for washing - as it was easier than heating a whole cylinder of hot water - and washing up.
Another couple of other things you don't see very often nowadays - again thinking back to my late grandparents - tea cosies to keep your pot of tea warm, though whether it did is a moot point. And, in part due to the decline in smoking, tobacco tins being used for storing screws, nuts, bolts etc in the shed - my late grandfather had a stock of 'Golden Virginia' tins which had been repurposed for such storage.