General Guidelines 1. The oil-fired boiler installation must be performed by a qualified installer in accordance with the regulations put forth in NFPA-31 Installation of Oil-Burning Equipment. The installation must comply with all local codes and authorities having jurisdiction. The installer must have the proper licensing and be experienced with all local codes and regulations. 2. Select boiler location and wall termination positions based on required boiler clearances. (See Table 1), the guidelines of pages 3 and 4, compliance with local codes and on using minimum lengths of vent pipe.