I've read through some of the posts involving vent-free products. I've also visited the vent-free alliance website, http://www.ventfreealliance.org
I'm curious as to everyone's input on using a vent-free heater as a backup in case of a power-outtage.
We've had a few ice storms here in the midwest in the last few years, and it seems like having a heater that doesn't rely on electricity would make sense if you lose power for a few days.
Are these types of heaters very common?