Perry, I regret to hear your air conditioner with supplemental heat is not warming your space to your satisfaction. Your appliance provides convenient additional heating for an area up to 550 square feet, but should not be used as the main source of heat, as it is intended to be a supplemental source only. The electrical circuit limits the amount of heat that can be generated, and 115 volt units (like yours) generate less heat than 208/230 units or heat pump models. Should you have any questions, please do not hesitate to reach out to us directly for assistance. We are here for you. *Ruth