First of all make sure you place a co detector in each room that has an open fire or a fuel burning appliance such as a heater gas cooker furnace boiler fireplace etc.
Carbon monoxide detector electric furnace.
Don t forget about the attached garage.
Height is important because carbon monoxide is slightly lighter than air and coming from a furnace it s warmer as well.
It will alarm in the presence of carbon monoxide.
A carbon monoxide detector with a led readout which is a crucial safety device for any home.
In addition to being slightly distanced from the furnace the carbon monoxide detector can safely be installed near or on the ceiling.
In fact most building codes now require a carbon monoxide alarm on every floor of the house.
The importance of having a carbon monoxide detector is often underestimated or simply forgotten by many parents.
Any vehicle with a fueled engine running in a closed space increases the levels of carbon monoxide.
However for passive indicators.
However if you do not have any sources of combustible fuel in your home that is your space heaters and whole house heating system are electric as are all of your appliances then a co detector isn t really necessary.