Your questions answered: HVAC FAQs. Bell Air Conditioning Inc. in Belton can answer all your HVAC-related questions. Before you get on the phone, browse these to see if we already responded to your question online. If you don’t see your question on the list or want more information on a particular topic, give us a call at 254-939-1141. Our techs can give you the information you’re looking for in no time.