Model CFC ClearFire Commercial Boilers
15 Rev. 05-2012
Table B5-7. CFC 1000 ClearFire Efficiency
Table B5-8. CFC 1500 ClearFire Efficiency
Table B5-9. CFC 1800 ClearFire Efficiency
Table B5-10. CFC 2500 ClearFire Efficiency
Table B5-11. CFC 3300 ClearFire Efficiency
Firing Rate
%
Return Water Temperature F
0
(C)
68 80 100 120 130 140 160
(20) (27) (38) (49) (55) (60) (72)
20 99 97.8 94.3 92.4 90.1 88.5 88
50 98.5 96.5 93.5 90.8 89.5 88.5 87.5
75 97.5 96.2 92.5 89.5 88.3 88 87.3
100 96.5 95.8 91.5 88.9 88 87.5 87
Firing Rate
%
Return Water Temperature F
0
(C)
68 80 100 120 130 140 160
(20) (27) (38) (49) (55) (60) (72)
20 99 98 96.2 94 91 88.7 88.2
50 98.2 97.5 94.3 92 90 88.5 88.2
75 98 96.5 92.1 91 89 88.5 88.2
100 97 95.3 91.5 90 88.1 87.8 87.5
Firing Rate
%
Return Water Temperature F
0
(C)
68 80 100 120 130 140 160
(20) (27) (38) (49) (55) (60) (72)
20 99 98 96.5 94 91 88.5 88
50 98.3 96 93.8 91 89.8 88.5 87.6
75 98 95 93 89.5 88.9 88.3 87.3
100 97.2 94 91.5 88.9 88 87.5 87
Firing Rate
%
Return Water Temperature F
0
(C)
68 80 100 120 130 140 160
(20) (27) (38) (49) (55) (60) (72)
20 99 99 97.5 95 92 88.5 88
50 99 98.5 96 93 91 88.3 88
75 98 97 95 92 89 88 87.5
100 98 97 94 91 88.5 87.6 87
Firing Rate
%
Return Water Temperature F
0
(C)
68 80 100 120 130 140 160
(20) (27) (38) (49) (55) (60) (72)
20 99 98 95.7 93 90.2 88.5 88
50 98.6 97.5 94.1 92 89.6 88.5 88
75 98 96.5 93.5 91 89.2 88.5 87.9
100 97 95 93.1 89.8 89 88.3 87.8