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Multiple Roth Tanks

Unknown
Unknown
in THE MAIN WALL
Not to worry. I've been out of Roth for 5 years now. I actually sell Schuetz tanks now. Much better in many ways.

Between any of the three manufatures of composit plastic/steel tanks, know of any "heater" being available or that one is really needed. The dual tank (plastic/steel) insulates the oil better significantly reducing chances of jelling. They also do not condensate inside like a steel tank.

Steve

Comments

  • Al Gregory
    Al Gregory Member Posts: 260
    Multiple Roth Tanks

    I went to a job today for a no heat call. They had just had two Roth tanks installed outside. I asked to look at them because I saw the suction and return line coming in the basement. They had a suction and return lines tee d off the tanks into one. Is that ok to do? What happens if one of the return lines freezes or gets crimped? Wouldnt there be a chance to over fill the tank and cause it to spill out the vent? I checked with the wholesaler and he said that is the way they recomend piping it but it looks like an accident waiting to happen to me.
  • Robert O'Brien
    Robert O'Brien Member Posts: 3,562
    There's

    really no good reason for a return line with any AST,Roth or otherwise.Use a Tigerloop

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  • John@Reliable_14
    John@Reliable_14 Member Posts: 171
    Al, can't overfill one...............

    If installed properly per Roth spec’s the tanks are twinned together with a crossover/vent.
    So even if the return lines in tank "A" was to freeze, once the level of tank "B" reached the overflow stage the only place for it to spill is in the empty tank "A".
  • Paul Fredricks_3
    Paul Fredricks_3 Member Posts: 1,557
    Agreed

    Roth says for 2 tanks, don't use a return line, use a tigerloop. We had an overflow situation last year. They used the Roth crossover arrangement, but they used 3rd party vent alarms which aren't as long as Roth's and dont sit correctly. We flled the tanks. Then the burner fired. When the unit is running it doesn't flow over very well and the return tends to feed into one tank more than the other. The result was a fitting on top didn't seal well and let the overflow out onto the top of the tank and onto the floor.

    Use single pipe and use only Roth parts.
  • Unknown
    Unknown
    you can't....

    use the kit to comnnect the tanks when installed outside with the Roth covers.

    Twin tanks outside using the Roth connection kit must have the tanks installed in a shed (or a one piece cover)

    Using the flare tees like that is a hazard when it comes to twining outside on the return. In EU they use a SINGLE line pick up and Tigerloops.

    wheels
  • Ken D.
    Ken D. Member Posts: 836
    Roth

    As I remember it, we had a problem a few years ago when outdoor tanks were twinned and the optional heaters were installed in one of the bungs on each tank. It's been a while, but we could not parallel the tanks due to lack of extra tank bungs.
  • Unknown
    Unknown
    never seen one

    Ken,

    I've been involved with Roth tanks since we introduced them to the USA market 10 years ago. I am now involved in a better manufacture os the same style tank. I've NEVER seen a "heater" for one. Must have been something your wholesaler dreamed up.

    4 holes. Ones a gauge, ones a vent, ones a fill and one is for either a duplex fitting OR a suction line assembly. All accessories are flanged to fit the tank bungs.

    If you indeed had a heater, I would love to have a picture of it.

    Thanks,

    Steve
  • Ken D.
    Ken D. Member Posts: 836
    Steve

    Unfortunately, the Boss got it from your competitor. Unknown if they were a factory option or an aftermarket. They screwed in the top tapping. I was there to prime and start when one tank went dry because they would not equalize. All I remember is the customer being really angry.
  • Ken D.
    Ken D. Member Posts: 836
    Steve

    With no bottom drain, I'm assuming they should use some type of manifold to draw down both tanks simutaneously. Is that right?
  • Unknown
    Unknown
    a flare tee

    Ken,

    Two falnged duplex fitings with one whole plugged, copper with tank fitting to the bottom with a flare tee centered. In the off cycle the tanks will equalize through reverse syphon. Works great. I can give you a great "at home" experiment you can do during happy hour if you want.

    If one tank pick up gells the other will still allow feed. Then when the service man comes out he'll see one tank is full and must have a problem.

    Steve
  • Unknown
    Unknown
    a flare tee

    Ken,

    Two flanged duplex fitings with one whole plugged, copper with tank fitting to the bottom with a flare tee centered. In the off cycle the tanks will equalize through reverse syphon. Works great. I can give you a great "at home" experiment you can do during happy hour if you want.

    If one tank pick up gells the other will still allow feed. Then when the service man comes out he'll see one tank is full and must have a problem.

    Steve
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