Harman 502H battery backup vs 512H

Ernest Smith Posted By Ernest Smith, May 16, 2012 at 3:51 PM

  1. Ernest Smith

    Ernest Smith
    New Member 2.
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    May 9, 2012
    18
    1
    Loc:
    South of Boston, MA
    I decided to add my photo so you know what I look like. I found someone selling a 502H battery backup and see that the latest seems to be the 512H. Does anyone know the difference between the two?
     
  2. smwilliamson

    smwilliamson
    Minister of Fire 2.
    NULL
    

    Dec 28, 2009
    4,475
    773
    Loc:
    Southcoast, MA
    Yes, the "H" denotes a product designed for Harman Stoves. The 502 is designed for manual light stoves and the 512 is designed for stoves with auto ignition
     
  3. Ernest Smith

    Ernest Smith
    New Member 2.
    NULL
    

    May 9, 2012
    18
    1
    Loc:
    South of Boston, MA
    Thanks for the info. There is a 502H for sale on the Boston Craigslist for $250.00. I don't know how many times used battery backups show up for sale or if it is a good price. This is not my ad and I do not know the seller. I'm not sure if he would be willing it to ship if someone wants it. I believe the seller is a re-seller of Harman stoves in the Newberryport area because I see a lot of used Harmans for sale on Craigslist in that town.
     
  4. Val

    Val
    Member 2.
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    Mar 17, 2012
    121
    2
    Loc:
    NY
    I would do some research first because in this case it is a "used" electronic device....how old is it anyway? it could be 10 years old. if you look on stove sentry's (or pump sentry) website, you can buy backup units cheaper directly. you can buy pure sine backups like the sf707, instead of modified sine units. Also, you can go to an inverter website and buy a larger watt inverter that has a built in transfer switch and charger. Or buy an inverter by itself and buy a transfer switch separately. The sentry battery backup units are nicely made, they are just small wattage. If you invest in a larger inverter you might use it for other things besides the pellet stove, like backing up a fridge or sump pump.
     
  5. wnbreeze

    wnbreeze
    New Member 2.
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    Dec 14, 2015
    1
    0
    Loc:
    mass
    I would like some more information about this subject if anyone can help.
    I have available off craigs list also a 502h sentry for the harman stove. I have an electronic ignition on my stove. If during storms I changed the setting from electronic to manual start after the stove is running will this work without causing any damage? Will this 502h work too in the way? Anyone have knowledge of this?
     

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