ABSTRACT
Propane-air is distributed to fuel-burning equipment through existing natural gas piping without any interruption of supply. As with any process system, control of propane-air backup systems is a flexible concept. When the propane-air backup system cost data has been completed; and, if the system appears to be cost effective, the next step is to contract with a supplier. The chapter presents a listing of items that need to be in any propane-air backup system contract. The utilization of a propane-air system can have many benefits: Propane-air backup systems may be at the top of the natural gas cost reduction consideration process, but in the proper environment, a properly designed system can be very beneficial in reducing costs. Since the propane-air system is like most systems, it needs to be understood in the context of what it can do to reduce ongoing natural gas costs.
