sometimes hot, sometimes not Home › Forums › Public Forums › General Plumbing › sometimes hot, sometimes not This topic has 1 reply, 2 voices, and was last updated 24 years, 9 months ago by Guest. Viewing 1 reply thread Author Posts 14 Feb 2000 at 1:56 am #272468 hvac man first thing in the morning, the water is plenty hot but not much of it. (Natural gas) wait 30 minutes and there is plenty of hot water. any one know what gives??? 15 Feb 2000 at 4:19 am #285787 GuestParticipant We need a little more info. to be able to help you out. Like what size or kind of heater you have.There are alot of diff. systems out there. GOOD LUCK 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