Hi Guys, any advice would be greatly appreciated please, I have heating upstairs but not downstairs, I have a Glow-worm space saver mk 2 on the wall in my kitchen with an airing cupboard upstairs with an immersion heater in? Nothing in the cupboard, all floorboards nailed down so no openings, any ideas where else to look? House is 1900 with bathroom downstairs behind the kitchen? Thanks
