The needs of an HVAC system can be very different depending on the size, location, structure and style of the hotel property. A small B&B may only have a heating unit while a big luxury hotel may apply a huge temperature control system. With the development of technology, some HVAC systems are very high-tech and efficient. Besides, the renovation of an HVAC system in some old properties can be highly expensive and complicated. When planning an HVAC system, any small mistake may lead to a big failure and potentially A HOTEL disaster.