There are several reasons for this. The gas equipment we stock is certified by the American Gas Association (AGA) for commercial use only, not residential use; consequently, should your home ever experience a fire, your homeowner's insurance will probably not cover it, and your entire policy may be voided, regardless of whether the range was involved in causing the fire or not. In addition, the manufacturer's warranty is voided once this unit has been installed in a residence, and most repair agencies will not service the unit because of the inherent liability involved in a residential installation. Also, these units do not have insulated cabinets and feature constant 24-hour pilots, factors which present a potential fire and burn hazard in the home.