A modular heating apparatus (10) includes a fuel burner (12), which includes a hollow body (14), the body (14) having a floor (16) and an outer wall (18), which extends upwardly from the floor (16). A fuel inlet (20) is defined in the outer wall (18) and an airflow conduit (22) extends upwardly from an opening (23) in the floor such that a reservoir (24) is defined between the outer wall (18) and a wall (26) of the airflow conduit (22). The upwardly extending airflow conduit (22) extends centrally upwardly from the floor (16) such that the reservoir (24) surrounds the upwardly extending airflow conduit (22).
