Electrical Appliances that incorporate unshielded heating elements or draw more than 750 Watts are prohibited. All appliances used must be in good condition with special attention given to seals, electrical cords and plugs. Therefore, all appliances and their cords must be UL approved. Additionally, only power strips with circuit breakers may be used as extension cords. For a complete list of prohibited items, please see Residential Living: Important Things to Know.