My 92 yr mother with dementia and altzimers is absolutely obsessed with her heating thermostat at the moment. Because of her heating system it can't be changed to a simpler one, which to be honest wouldn't make much difference. But my mom has to keep going to airing cupboard, look at boiler then she goes to thermostat and either turns it up or down, it's automatic so basically keeps her house through out the day a nice constant temp. But some times she presses the wrong button and this turns it off or like the other day she put it on 28degs and it didn't shut off. I've been in there when it's freezing because she has turned it off. Today my sister has been with her and sh was constantly asking for heating to be turned off. Then turn back on. She says we have changed her heating.and it's all new......it's over ten years old!! I've put a note on thermostats stuck all over with cello tape saying not to touch but she says she never does even though we have seen her. And she keeps unsticking the note and saying it's the carers. We are just worried she will turn it off and get cold her house is a mobile home so gets cold very quick.