u/Beneficial_Shoe_7099

Don't really use Reddit, sorry if I miss some etiquette and for the shit picture. Agents came round recently to inspect the property, and said that there should be a CO alarm near our boiler. If we can't find it we'll have to buy a replacement ourselves. This is the only thing that even looks like it could have a CO detector in the area, but I have a feeling it's something to do with the thermostat. Does anyone know if it is? Or if you know of a more relevant subreddit I could be asking, that would be amazing as well. Don't know anything about this kind of stuff so apologies if it's a dumb question.

Boiler to the right