I am new to the industry and i am currently training. Instead of buying just a manometer thought it might be an idea to buy a flue gas analyser/pressure tester. If you have experience of different models can you reccomend one. I have seen. BW gas probe(favorite at the moment) kane 400 and Maester. thanks sus susmil@susmil.freeserve.co.uknulli am newsusmil@susmil.freeserve.co.uk