Hot water tank Home › Forums › Public Forums › General Plumbing › Hot water tank This topic has 1 reply, 2 voices, and was last updated 23 years, 6 months ago by Guest. Viewing 1 reply thread Author Posts 3 Mar 2001 at 7:02 pm #274704 Less500 Thursday I had a new hot water tank installed.My shower water is just luke warm. Can Iturn up the heat without shuting off the piolet light? 3 Mar 2001 at 10:59 pm #290249 GuestParticipant Yes you can. Turn the dial more toward the “hot” or “hottest” position. To avoid scalding don’t turn it all the way up right away. 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