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Kidde combination smoke and carbon monoxide voice alarm £11.98 @ Costco
Kidde combination smoke and carbon monoxide voice alarm £11.98 @ Costco

Kidde combination smoke and carbon monoxide voice alarm £11.98 @ Costco

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Kidde combination smoke and carbon monoxide voice alarm with 10 year warranty

6 Comments

Got some of these around the house .

Got one seem good value for money heat added

Original Poster

I ended up getting one from Argos at twice the price a couple of months back. Just taken another look and this looks like a newer version and the price is £23.99.

Aren't Smoke Alarms supposed to be positioned differently to CO alarms? I seem to recall that smoke alarms are ceiling mounted, whereas CO ones are lower down, ie on the walls. Am I wrong?

Original Poster

Not really sure. I have a separate Kidde carbon monoxide alarm also and there was no mention of positioning it lower down.

ozodimal

Aren't Smoke Alarms supposed to be positioned differently to CO alarms? I … Aren't Smoke Alarms supposed to be positioned differently to CO alarms? I seem to recall that smoke alarms are ceiling mounted, whereas CO ones are lower down, ie on the walls. Am I wrong?


We have both ceiling and shelf mounted alarms.
Some CO alarms are shelf or wall mounted, in which case they need to be at least 15cm lower than the ceiling - this is because the corners between ceiling and walls are "dead spots" in terms of air flow. For this type of unit put it at face level so that you can see any display and so that it senses the same air you are breathing.
The Kidde 7CO instructions say to keep the unit 30cm from walls and ceilings, and between 2m and 4m from the appliance.
CO is slightly lighter than air and so will rise, so ceiling mounted units are fine, but again avoid the corners and not right above the appliance. The manual for this product is here and has a lot of information about where to install and where not to install.
Install a carbon monoxide detector in every room containing a fuel-burning appliance. (Which? website)

Edited by: "michaelsouris" 17th Jan 2015
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