Smoke alarm question

[Jeremy Harris]

23 minutes ago, Mr Punter said:

 

I understand that these deactivate after 10 years whether they are OK or not. I am not sure what parts become defective and why they cannot be replaced. There seems very little research into the 10 year lifespan and it seems that most smoke alarms fail because of dead batteries or disconnected power. I think the 10 year thing is environmentally irresponsible and a bit of an industry con.

 

I have 11 smoke alarms and if I went with the Google Nest I would need to pay at least £105 per year to the robbing bastards.

 

 

The fix I've adopted was to fit the Aico alarms that take a PP3 backup battery, and as the batteries have failed I've replaced them with a lithium PP3, that has a very much longer life (maybe up to 10 years).  Hopefully lithium PP3s will still be around when the current ones need replacing.