The best replacement for harmon is quadra fire.

The best alternatives to harmon are rated as following:
★★★★★  quadra fire
★★★★  quadrafire
★★★  harmon
★★★  chase
★★★  dickinson
★★★  bellisario
★★  hogan prep
★★  chevy chase
★★  wyandotte
★★  everhart
★★  enviro
★  hank haney
★  hamill
★  jayne mansfield
★  haney
★  mark harmon
  cruzan
  sean foley
  hamil

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