Thanks to Tru-Steam Boilers & Services Pty Ltd. I had taken water tube boiler service from this company 1 year ago. Water Tube Boilers of this company can use any type of fuel. Tru-Steam Research and Development engineers have designed the "D" Type Water Tube with the highest industry safety standards in mind. As this company is made up of a number of skilled trained boiler appliance service technicians, so their services are very high quality and reliable. I am very much satisfied with their services.