Heater assembly for an appliance having one or more housing-securing features

A dryer appliance, comprising:

• a cabinet defining an interior;
• a drum positioned within the interior, the drum defining a chamber for receipt of articles for drying;
• and
• a heater assembly mounted within the cabinet in fluid communication with the drum to heat air thereto, the heater assembly comprising
• a housing comprising a first housing portion and a second housing portion selectively secured to the first housing portion, the first and second housing portions defining a chamber, the first and second housing portions also defining an inlet and an outlet, the chamber extending along an axial direction from the inlet to the outlet,
• a first mounting flange extending radially from the first housing portion to define a first reference plane having a mutually-orthogonal vertical direction, lateral direction, and transverse direction, the transverse direction being parallel to the axial direction,
• a second mounting flange extending radially from the second housing portion and slidably positioned on the first mounting flange, the second mounting flange defining a clamp aperture extending therethrough along the vertical direction, and
• a slide clamp extending through the clamp aperture and generally along the transverse direction from a base end fixed to the first mounting flange to a distal free end, the base end being positioned below the second mounting flange, and the distal free end being positioned above the second mounting flange.