Want/need to get a carbon monoxide detector - anything I need to look out for?
We have a gas boiler that's about 20+ years old according to British Gas and it's time to get a carbon monoxide detector to be on the safe side. I assume all big stores (Homebase, B&Q etc) carry these and they all have to meet some kind of standard? Is there a specific one recommended by experts or will anything from the local Homebase do the trick (hopefully it'll never have to!)?