More on flexible gas lines. Below is from a mailing residents in Sun City, TX (Georgetown, TX) received recently. It appears they have eliminated the use of 'flex' from the supply hard pipe to the hard pipe coming out of the furnace manifold and through the furnace wall. =================================== Gas Line Installations at Sun City Texas - per Jim Romine, Executive Director, SCT Community Association In the past, flexible metal hoses were used in the installation of gas furnaces here at Sun City Texas. This is the hose that brings the gas into your furnace from the gas source inside your home. This installation met all applicable City building codes at the time. According to Stan Johnson, President of Stan's Heating and Air, approximately two years ago, our City code changed and required that hard steel lines be used in the installation to replace these steel flexible lines. This was changed due to the slight possibility that the flexible line could be penetrated due to years of vibration. Since the Code was changed, all homes in Sun City have been installed per the new code. Some residents have expressed concern over the past use of the flexible metal lines and their existence in many homes in Sun City. Residents who are interested in having their lines replaced may call Stan's-Georgetown office at 869-6995. Stan's will be offering special rates this spring to switch the line for Sun City Residents. Please keep in mind that this line will need to be replaced to meet the new code if you sell your home at a future date. ============================================