Portable heater with interchangeable battery

A portable heater comprising:

• a housing;
• a burner disposed within the housing;
• one or more electrical components for operating the burner;
• and
• a power interface for connecting with one of a plurality of power sources, the power interface being configured to deliver power to the one or more electrical components from a connected power source, the power interface including:
• a plurality of electrical contacts;
• a single adapter plate having a first side and an opposite second side, the first side defining a first connection arrangement and a separate second connection arrangement;
• a power supply mounted to the second side of the single adapter plate, the power supply having a pair of prongs extending through a central opening in the adapter plate such that the pair of prongs can be received by an electrical plug extending from the first side of the adapter plate;
• the first connection arrangement being for directly receiving a first battery of a first type having a first set of interconnection features, the first connection arrangement including a plurality of first wall structures for securing the first battery to the power interface;
• and
• the second connection arrangement being for directly receiving a second battery of a second type, the second battery type having a second set of interconnection features different from the first set of interconnection features, the second connection arrangement including a plurality of second wall structures, different from the plurality of first wall structures, for securing the second battery to the power interface.