Hi. does anyone have real cost savings data between a dc motor furnace (ecm) and AC variable speed? i am trying to decide if i should spend the extra money on an ecm motor furnace.
oddly the "unit amps" listed in the rheem RGFD specs (ecm) says 8.7 and the RGRK specs (ac variable speed) "motor full load amps" says 6.8. too bad the two dont have the same specs so i can compare.
my main issue is with potential repair costs: the ecm furnace parts costs are crazy high compared to the AC furnace. but will the cost savings in energy make up for it? thats what i am looking for