Footprint underwent a $260 mill renovation that started just around Covid time. And the Coyotes have been away from the Footprint arena since they moved out to Glendale. The Roadrunners while in the ECHL, played there from 2005 to 2009. Gone a good decade without hockey prior to that major reno.
Nassau County Memorial Colesium would be another former NHL arena (which also underwent a big renovation) that wouldn't need the ice machine either if anything less than say 10 uses a year would be costing them money to keep around.