[FrunkSlammer]

Yes, almost certain it's required.

 

[FrunkSlammer]

Couldn't find a code reference (if that would even matter to you), but found this:

 

[para19]

Thanks.

 

[Dan Wheeler]

Where a outs in BC?

I'm northern BC and all we do is one outside bedrooms and interlinked on each floor, plus basement / crawl space. And has to have at least one with CO detection when dwelling has gas or wood heating / appliances.
I will chose battery backup units, just because I'm more comfortable knowing they are still protected when power is out for extended times, which is common up here.

 

[para19]

Westcoast.

 

[FrunkSlammer]

I'm northern BC and all we do is one outside bedrooms and interlinked on each floor

Rules just changed and supposed to be one in each bedroom now, plus one per floor, all interconnected. Makes for a lot of smokes in a decent sized house!