Collection: Furnace 40000 BTU Upflow

1 Ton 1.5 Ton 2 Ton 2.5 Ton 3 Ton 3.5 Ton 4 Ton 5 Ton

18,000 BTU's 24,000 BTU's 26,000 BTU's 28,000 BTU's 30,000 BTU's 36,000 BTU's 39,000 BTU's 40,000 BTU's 42,000 BTU's 45,000 BTU's 48,000 BTU's 52,500 BTU's 56,000 BTU's 60,000 BTU's 80,000 BTU's 100,000 BTU's 120,000 BTU's 140,000 BTU's

80% AFUE 81% AFUE 92% AFUE 96% AFUE 97% AFUE

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