Well now.
Being a female myself, I do not understand these fears that many of the girls have, likely because I grew up a country chick with fireplaces and stoves being the normal heating appliance.
I think that the reason is based in the fact that most heating units hide the heat source, such as oil, gas etc.
The furnace comes on, the warm air blows out the vents and its all pretty much hidden from view.
I these appliances burn fuel, have safety switches and other control devices.
Gas and oil burners can and do produce CO, so the worries should be across the board as to safety.
Having CO and Smoke detectors in the room with the stove as well as the bed room should be SOP.
We run up to three pellet stoves at once during the colder weather.
The past two weeks we have had at least one stove running 24/7
The past two nights we had 1 @24 hrs and 1 on until about 11 pm
As with any appliance that has fire involved, the pellet stove needs to be installed correctly and maintained.
Read this as kept clean and the vent cleaned regularly.
The thing that worries me is the stuff I can't see.
A pellet stove thats run properly is safer than just about anything out there.
There are risks involved just getting out of bed in the morning.
Far greater risk of death or grave bodily harm driving the car than having the pellet stove burning all night.
We have run Pellet stoves since 1991 and have never had any issues that were really worrisome.
For Gawds sake, the electric water heater can have a t stat failure and explode
Nothing is perfect.
Tell your wife that Missy here says its OOOOOOOK.
I take care of our stoves and have all along.
Pellet stoves ROCK
Snowy