Potterton Myson British Gas 30F2 |
Non-Condensing |
Gas |
75.2% |
Potterton Myson British Gas 40F2 |
Non-Condensing |
Gas |
76.3% |
Potterton Myson British Gas 50F2 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson British Gas 60F2 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson British Gas 80F2 |
Non-Condensing |
Gas |
75.9% |
Potterton Myson C40 c40/12 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson C55 c55/16 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson C80 c80/23 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson C95 c95/28 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson Combi 100 |
Non-Condensing |
Gas |
78.8% |
Potterton Myson Combi 80 |
Non-Condensing |
Gas |
79.2% |
Potterton Myson Envoy 30 |
Condensing |
Gas |
87.2% |
Potterton Myson Envoy 30 System |
Condensing |
Gas |
87.2% |
Potterton Myson Envoy 40 |
Condensing |
Gas |
87.1% |
Potterton Myson Envoy 40 System |
Condensing |
Gas |
87.1% |
Potterton Myson Envoy 50 |
Condensing |
Gas |
87.1% |
Potterton Myson Envoy 50 System |
Condensing |
Gas |
87.1% |
Potterton Myson Envoy 60 |
Condensing |
Gas |
86.8% |
Potterton Myson Envoy 60 System |
Condensing |
Gas |
86.8% |
Potterton Myson Envoy 80 |
Condensing |
Gas |
86.7% |
Potterton Myson Envoy 80 Flowsure |
Condensing |
Gas |
87.5% |
Potterton Myson Envoy 80 Flowsure plus |
Condensing |
Gas |
87.5% |
Potterton Myson Envoy 80 System |
Condensing |
Gas |
86.7% |
Potterton Myson Fireside 52 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo 2 cf20/30 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo 2 cf50 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo 2 rs20/30 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo 2 rs40 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo 2 rs50 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo cf20-30 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo rs20-30 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo rs35/50 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo rs40 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Flamingo rs50s |
Non-Condensing |
Gas |
65.0% |
Potterton Myson FRS 52 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Housewarmer 45 |
Non-Condensing |
Gas |
77.4% |
Potterton Myson Housewarmer 55 |
Non-Condensing |
Gas |
78.4% |
Potterton Myson Kingfisher 2 cf150 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher 2 rs40 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf100 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf40 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf40a |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf50 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf50a |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf60 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher cf80 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher Mf CF 100 |
Non-Condensing |
Gas |
76.9% |
Potterton Myson Kingfisher Mf CF 40 |
Non-Condensing |
Gas |
76.8% |
Potterton Myson Kingfisher Mf CF 50 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson Kingfisher Mf CF 60 |
Non-Condensing |
Gas |
76.8% |
Potterton Myson Kingfisher Mf CF 70 |
Non-Condensing |
Gas |
76.5% |
Potterton Myson Kingfisher Mf CF 80 |
Non-Condensing |
Gas |
76.9% |
Potterton Myson Kingfisher Mf CF 90 |
Non-Condensing |
Gas |
77.6% |
Potterton Myson Kingfisher Mf RS 100 |
Non-Condensing |
Gas |
76.9% |
Potterton Myson Kingfisher Mf RS 40 |
Non-Condensing |
Gas |
76.8% |
Potterton Myson Kingfisher Mf RS 50 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson Kingfisher Mf RS 60 |
Non-Condensing |
Gas |
76.8% |
Potterton Myson Kingfisher Mf RS 70 |
Non-Condensing |
Gas |
76.5% |
Potterton Myson Kingfisher Mf RS 80 |
Non-Condensing |
Gas |
76.9% |
Potterton Myson Kingfisher Mf RS 90 |
Non-Condensing |
Gas |
77.6% |
Potterton Myson Kingfisher rs100 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher rs60 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Kingfisher rs80 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Netaheat Electronic 10/16e |
Non-Condensing |
Gas |
68.0% |
Potterton Myson Netaheat Electronic 16/22 |
Non-Condensing |
Gas |
65.0% |
Potterton Myson Puma 100 |
Non-Condensing |
Gas |
74.8% |
Potterton Myson Puma 100 Security |
Non-Condensing |
Gas |
74.8% |
Potterton Myson Puma 100e |
Non-Condensing |
Gas |
78.8% |
Potterton Myson Puma 100e Security |
Non-Condensing |
Gas |
78.8% |
Potterton Myson Puma 100ec |
Non-Condensing |
Gas |
78.8% |
Potterton Myson Puma 80 |
Non-Condensing |
Gas |
75.2% |
Potterton Myson Puma 80 Security |
Non-Condensing |
Gas |
75.2% |
Potterton Myson Puma 80e |
Non-Condensing |
Gas |
79.2% |
Potterton Myson Puma 80e Security |
Non-Condensing |
Gas |
79.2% |
Potterton Myson Puma Flowsure plus |
Non-Condensing |
Gas |
79.6% |
Potterton Myson Rs38/11 rs38/11 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson Rs50/15 rs50/15 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson Rs70/21 rs70/21 |
Non-Condensing |
Gas |
55.0% |
Potterton Myson Scottish Gas 30F2 |
Non-Condensing |
Gas |
75.2% |
Potterton Myson Scottish Gas 40F2 |
Non-Condensing |
Gas |
76.3% |
Potterton Myson Scottish Gas 50F2 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson Scottish Gas 60F2 |
Non-Condensing |
Gas |
76.7% |
Potterton Myson Scottish Gas 80F2 |
Non-Condensing |
Gas |
75.9% |
Potterton Myson Statesman Flowsure |
Non-Condensing |
Oil |
78.3% |
Potterton Myson Statesman Flowsure plus |
Non-Condensing |
Oil |
78.3% |
Potterton Myson Statesman Kitchen 45/50 Kerosene |
Non-Condensing |
Oil |
85.1% |
Potterton Myson Statesman Kitchen 50/70 Gas oil |
Non-Condensing |
Oil |
81.4% |
Potterton Myson Statesman Kitchen 50/70 Kerosene |
Non-Condensing |
Oil |
81.4% |
Potterton Myson Statesman Kitchen 70/90 Gas oil |
Non-Condensing |
Oil |
84.8% |
Potterton Myson Statesman Kitchen 70/90 Kerosene |
Non-Condensing |
Oil |
84.8% |
Potterton Myson Statesman Kitchen 90/110 Gas oil |
Non-Condensing |
Oil |
81.9% |
Potterton Myson Statesman Kitchen 90/110 Kerosene |
Non-Condensing |
Oil |
81.9% |
Potterton Myson Statesman System 65/85 |
Non-Condensing |
Oil |
80.0% |
Potterton Myson Statesman Utility 50/70 Gas oil |
Non-Condensing |
Oil |
81.4% |
Potterton Myson Statesman Utility 50/70 Kerosene |
Non-Condensing |
Oil |
81.4% |
Potterton Myson Statesman Utility 70/90 Gas oil |
Non-Condensing |
Oil |
84.8% |
Potterton Myson Statesman Utility 70/90 Kerosene |
Non-Condensing |
Oil |
84.8% |
Potterton Myson Statesman Utility 90/110 Gas oil |
Non-Condensing |
Oil |
81.9% |
Potterton Myson Statesman Utility 90/110 Kerosene |
Non-Condensing |
Oil |
81.9% |
Potterton Myson Suprima 100 |
Non-Condensing |
Gas |
78.3% |
Potterton Myson Suprima 120 |
Non-Condensing |
Gas |
77.8% |
Potterton Myson Suprima 30 |
Non-Condensing |
Gas |
76.6% |
Potterton Myson Suprima 40 |
Non-Condensing |
Gas |
76.8% |
Potterton Myson Suprima 50 |
Non-Condensing |
Gas |
77.5% |
Potterton Myson Suprima 60 |
Non-Condensing |
Gas |
77.9% |
Potterton Myson Suprima 70 |
Non-Condensing |
Gas |
78.4% |
Potterton Myson Suprima 80 |
Non-Condensing |
Gas |
77.2% |