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Electric heating element and Tstat for an Indirect WH

ALH_4
ALH_4 Member Posts: 1,790
in THE MAIN WALL
Bradford White also makes their <a href="http://www.bradfordwhite.com/images/shared/pdfs/specsheets/501-B.pdf"target="_blank">Solar Saver</a> water heater with an indirect coil and electric elements. I'm not really sure about it as a single solar storage tank, but it would be great as an indirect with electric hot water backup.

Comments

  • Cliff Brady
    Cliff Brady Member Posts: 149


    I have a 40 gallon indirect water heater with a 1.5" tapping for a heating element and a .5" tapping for a Tstat well just below it (see attached picture). I would like to get about a 6000 watt element in there to provide temporary DHW while the boiler is moved out of the way for some structural work in the basement.

    I currently keep the tank at 140 degrees and mix it down to 120 for the house. We have a 60 inch GFX heat recovery unit so I think volumes and recovery times should be Ok with 6000 watts.

    Can anyone recommend equipment and a strategy I can relay to the plumber and electrician safely install this.
  • hot_rod
    hot_rod Member Posts: 23,184
    try chromolox

    they make all kinds or element and assemblies for heating water in tanks, cooking equipment, etc. I know they have one to fit 1"

    hr
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • chris_93
    chris_93 Member Posts: 84
    indirect w/ extra tapping

    Hi Cliff,
    I was wondering what brand tank you have there? I like the idea of being able to offer the elec. element as a backup or repair, as in your case.
    Thanks,
    Mike
  • Cliff Brady
    Cliff Brady Member Posts: 149
    Elbi Aquamate

    Elbi Aquamate from Italy, but AFAIK they are discontinued. lots of tappings: anode rod, temperature gauge, thermostat, electric element, top DHW supply and bottom side cold inlet. It is very solid with strong tappings.
  • Cliff Brady
    Cliff Brady Member Posts: 149
    Chromalox

    I took a good look but 2000 watts was about the max but it did have a nice built-in thermostat.

    Anyway I met with the builder-engineer and revised the plan to shore up the beam without a new column so that the boiler won't need to move but only a small venting change and some minor electrical rerouting will be necessary.

    Thanks for the suggestion. I still might consider the smallest electric Steibel Eltron instantaneous WH as a backup.
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