Lear Siegler, Inc.
LSi Home Division
900 Brooks Avenue
Holland, Michigan
The Siegler Corporation was incorporated in December 1950 as Siegler Heating Company. Originally a maker of climate control equipment, the company changed its name to Siegler Corporation after merging with Siegler Enamel Range Company Inc. in 1954. In 1966, it purchased American Metal Products Corporation, an automobile seating and furniture parts manufacturer, and Home Furnace Company (which operated as a division of the company).
– Wikipedia
LSi Home Division also manufactured furnaces, evaporators, condensers, and packaged units for mobile homes under the trade name: Miller. Sometimes equipment was made by other manufacturers such as Bard.
Miller heat pump manual from BardHVAC