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% |