Only a batch. They've since fixed it. I've had my 4 heaters for a long time. But I don't have anything larger than a 100w. It's easy to dismiss a product just because of some failures. Granted the failures were pretty bad but glass heaters have been breaking since forever and we are still using them.
Sent from my iPhone using Tapatalk
I'm sure glass heaters been breaking but usalky due to user errors like leaving out in with no water or breaking it cause you banged it. Never heard enough blowing up while working