Leaking expansion tank/boiler/gas as fuel Home › Forums › Public Forums › General Plumbing › Leaking expansion tank/boiler/gas as fuel This topic has 1 reply, 2 voices, and was last updated 22 years, 9 months ago by Wallingford Plm+Htg. Viewing 1 reply thread Author Posts 10 Feb 2001 at 5:10 pm #274609 MasterPlumbersKeymaster Our expansin tank is leaking; there is a boiler type of heating with natural gas as a fuel. 10 Feb 2001 at 11:13 pm #290031 Wallingford Plm+HtgParticipant Instead of going online,call a service man. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In