Water Heater Temperature Question

Discussion in 'Water Heater Forum, Tanks' started by plumbing newbee, Mar 21, 2010.

  1. plumbing newbee

    plumbing newbee New Member

    Joined:
    Jul 25, 2005
    We have a 75 gallon water heater (10 years old) and some mornings the hot water is 120 F and some mornings its 102F.... Is there a way to decrease the range of temperature swings? We would like it always to be about 120F in the morning-
    Thanks for the help-
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    You may have a significant buildup of mineral deposits in the tank. This can act like an insulator, preventing the thermostat from getting an accurate reading of the water. At 10-years, the thermostat might be getting cranky, too, and replacment of it might help. But, at 10-years, you could have another 10-years out of it, or it could fail tomorrow. Is this gas, electric, or other?
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. plumbing newbee

    plumbing newbee New Member

    Joined:
    Jul 25, 2005
    Thanks for the reply. It's an Apollo water heater; 11.5 years old. Any idea is changing the thermostat is a DIY project? I'm pretty handy....
    Thanks.
     
Similar Threads: Water Heater
Forum Title Date
Water Heater Forum, Tanks Replacing Grommet Seal on Hot Water Heater Monday at 11:52 AM
Water Heater Forum, Tanks Best Tankless Water Heater Brand? Jul 8, 2016
Water Heater Forum, Tanks Geospring GEH50DFEJSR water heater - No condensate & excessive humidity? Jul 1, 2016
Water Heater Forum, Tanks GeoSpring Heat Pump Water Heater Jun 30, 2016
Water Heater Forum, Tanks Water heaters for radiant heat and hydronic air handler Jun 28, 2016

Share This Page