30- 3 ½"  Conventional HWT w.3 1/2" IF

20- 4"      Conventional HWT w/4" FH

20- 4"      Spiral HWT w/4" FH

32- 4 ½"  Conventional HWT W/4 1/2" XH

84- 5"      Conventional HWT w/4 1/2" IF

40- 5"      Spiral HWT w/4 1/2" IF