Slanted Floor A slanted floor helps keep the puppies in the center when they are most vulnerable to neglect and suffocation. The angled floor also keeps the puppies cozy without overheating the mother because the edge of the floor is further from the heater In-Floor Electric Heat Never worry about the possibility of a puppy suffocating under a make-shift heating pad, the fire hazard of an open flame heater, or the danger of an overhead lamp falling onto the puppies. An electronic thermostat built into our stainless steel whelping box makes it easy to keep the puppies cozy, even on the coldest nights of the year. Plus, the EZS runs on only several dollars a month, less than a third of the cost of running a 250-watt heat lamp! Easy to Clean A stainless steel body assembled with hand-tightening nuts and a removable, washable mat make clean-up a breeze. Simply wipe down the stainless steel daily and power wash the box and mat between litters to avoid bacteria and odor build-up and to keep your inspector smiling! Excellent Craftsmanship Stainless steel construction eliminates the worries of paint peeling or your dog chewing on the box. Skillful welds, quality components, and a revolutionary design ensure your investment will pay you back for many years to come.