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Franken-tank part buffer, part separator, part...

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Uni R_2
Uni R_2 Member Posts: 589
My indirect has been swarmed in Copper BTU leeches! L

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  • hr
    hr Member Posts: 6,106
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    air purger, part solar

    I have stripped down this Ergomax reverse indirect tank. Then I added two additional 1" connections to the tank 90 degrees offset from the current connections, high and low.

    I have been playing around with some 3M doublesided tape for transfer plate application, so I decided to stick some copper transfer plates to the outside of the tank for an addition heat exchanger, in or out, possibly a solar connection maybe a wood boiler connection point.

    The Knight mod con pumps directly to the tank and maintains setpoint. A Grundfos "Alpha" delta T circ will supply the radiant zones. I'll add some before and after pressure gauges around that circ to watch it work.

    The internal copper coils could be a preheat for DHW, or an additional hx for other uses. I may feed that coil output to a plate HX or small flash tank Triangle Tube Mini Smart for example for the final DHW temperature boost.

    A mod con like the Laars Mascot or Vitoden with an onboard DHW generator would be a simple means to get that DHW temperature boost.

    This would be an extremely simple tank to build, the internal copper would not be needed, really. Group Thermal would merely need to add additional taps to their current tank offerings.

    Wessel, Amtrol, JW or any manufacture of steel compression tanks could build this also. I like the concept of the installer adding the insulation jacket at the jobsite. many of the Euro indirect and solar tanks arrive that way. Much less freight damage potential.

    hot rod

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  • Paul Rohrs_5
    Paul Rohrs_5 Member Posts: 134
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    Air-Separation

    Hotrod, will you put on a dedicated air-separator or use the single air-bleeder at the top of the tank? Nice!

    I was thinking about using the new HTP boiler buddies in the same capacity as a Caleffi Hydroseparator so we'll see how that comes out.

    Paul

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  • hr
    hr Member Posts: 6,106
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    With good purge ports

    like the Webstone valves provide, air elimination is very simple with simple air vents.

    I connected this Caleffi Solar Module to my panel this weekend. I was amazed how well that simple air vent removed the last few bubbles after I power purged the panel/ tank.

    If anywhere, I would use a Spiro, caleffi, or the new Honeywell on the radiant manifold side of that tank. probably on the return manifold.

    Air elimination has a lot to do with the ability to isolate loops and have enough "fizz" from your fill valve or fill pump to blast out the air. Also the dirt, solder balls, copper and pex chips, etc.

    I like the Caleffi fill valve for an easy way to provide a full power flush and back the screw down to the 12psi, via the convenient indicator needle.

    hot rod

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  • hr
    hr Member Posts: 6,106
    Options
    With good purge ports

    like the Webstone valves provide, air elimination is very simply done with simple air vents.

    I connected this Caleffi Solar Module to my panel this weekend. I was amazed how well that simple air vent removed the last few bubbles after I power purged the panel/ tank.

    If anywhere, I would use a Spiro, Caleffi, or the new Honeywell on the radiant manifold side of that tank. probably on the return manifold. It would be nice to have a domed top on that tank for a bit of an air bubble catch space, but....

    Air elimination has a lot to do with the ability to isolate loops and have enough "fizz" from your fill valve or fill pump to blast out the air. Also the dirt, solder balls, copper and pex chips, etc.

    I like the Caleffi fill valve for an easy way to provide a full power flush and back the screw down to the 12psi, via the convenient indicator needle.

    hot rod

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