If the potatoes are rotting, the storage conditions aren't right. Perhaps you could just check occasionally and remove any potatoes that might be rotting... I think you'd certainly know it, since there are few smells as penetrating and pungent as a rotten potato!
I can't imagine that the smell of rotting potatoes could be ignored long enough in a house to let enough potatoes rot that a dangerous level of gases could actually accumulate!
I wonder, if your area is too warm to store them properly, maybe they'd just have to be refrigerated??
When I was a kid at home (Saskatchewan), we dug the potatoes, let them dry on the ground outside, then hauled into the basement unwashed and stored in open bins. The basement was dirt (house dating from early 1900's) and unheated. It didn't freeze down there and was perfect for potato storage through the very long winter - dry and cool with air circulation and there was no rotting. Some sprouting would start towards spring, which was fine, as those were used as seed potatoes.
My first experience with rotten potatoes came much later while living in an apartment and storing a big plastic bag of potatoes in a closet... then wondering where the funny smell was coming from, tracking it down to the bag of potatoes, and then just about getting knocked over by the stench when I opened the bag to extract the rotten one!
