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List of small mod/cons

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Comments

  • hot_rod
    hot_rod Member Posts: 22,021
    Tank life

    for glass lined steel tanks the operating temperature does make a difference, stay below 180, even 160F if possible, for longest life. Wide temperature swings also put more stress on the tank. 40F incoming to 160-180F, for example



    Also you can still buy top quality glass lined buffer and indirect tanks, look at the thickness of the steel used, and the thickness of the glass coating.



    The box store and most wholesale electric water heaters may not be the top quality. Lift one up to tell :)



    A good indicator of a quality tank is to look at the weight. There are still some tanks with 12 gauge steel and 7 gauge heads and bases out there. 12- 15 mils of glass coating and heavy, 21- 24 gauge steel jackets. Steel jackets are nice for mounting controls or relay boxes onto if needed.



    Every plastic jacketed tank I have installed has warped or cracked the jacket, some come out of the box with cracks. Seems the higher temperature operation shortens then plastic jacket life.



    Then of course water quality. SS tanks are more sensitive to chlorides and over treated "city water"
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Gordy
    Gordy Member Posts: 9,546
    edited May 2014
    Savings

    Ced 1/2 of your 40% is just the difference in using cheaper fuel lp vs oil. Gotta

    Account for that plus using right size boiler.



    If an installer walked in gave you an 85% properly sized ng ci boiler he would save you 30% look like a hero for 1/2 the cost of a mod con. This is what heatpro is trying to say previously.
  • ced48
    ced48 Member Posts: 469
    Sure-

    but still a great end result-
  • Gordy
    Gordy Member Posts: 9,546
    Buffer location

    Basically you could use the buffer like a hydraulic separator. So same location. IF you really think you need a buffer.
  • ced48
    ced48 Member Posts: 469
    Propane Is Not-

    cheaper than oil, btu to btu-