How to check your radiators to see if they will work at 55 oC flow temperature . How to save gas.

Derek in this video takes a look to see if radiators will still work if you lower the flow temperature to 55 oC. This video is not designed for gas engineers or trainees but trainees could still find the information useful.    • Don't adjust your  heating flow temperatur...   Link to reducing flow temperature video    • HOW TO SAVE ENERGY AND MONEY over the wint...   Link to saving energy over Xmas