Local Plumbers London Ltd. Gas wall heater installed and paid for 28/2/24 £621.11 . So stiff to turn on that we in our 80s could rarely achieve it, then only after many tries and lying or crouching on the floor to peer into the hole. The suppliers and makers also had to get down on the floor, with their strong young male fingers they could usually turn it on after a several tries. After many requests they eventually agreed to removing the heater and refunding us. They removed it but still MONTHS later 4/7/24 have not refunded despite many requests by us and promises by them.