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Megasteam tap

Bob Bona_4
Bob Bona_4 Member Posts: 2,080
in THE MAIN WALL
Hi Glenn, on the heels of the last Megasteam question, in your opinion, what would be the best way to approach this?

Installing a MST513. Also installing a 7K BTU radiant zone, and a 50 gallon indirect. Would it be best to use an Everhot RH8 on the condensate for both (no priority) or should I use the tankless for one or both zones? Or, use the RH8 (or not) for the indirect, and the tankless for the radiant?

Figure on the typical Alliance head loss, the radiant head loss is 11.2 with two loops-3.4 with three loops.

TIA!

Comments

  • Unknown
    Unknown
    Bob

    I would pipe the Indirect as a vacuum loop using the Indirect tappings provided and the Radiant using the coil but with at least a mixing valve, expansion tank, PRV and relief valve. This way the bulk of your flow will be in the radiant system loop with a little flow through the coil only when more temperature is needed. The mixing sevice will also protect the pipe against higher temperatures when the boiler is making steam. Wire both zones through a high limit aquastat mounted in the tapping provided. It may make more sense to use an additional aquastat for the radiant loop since it doesn't hotter water temperature like the indirect.

    Glenn Stanton

    Manager of Technical Development

    Burnham Hydronics

    U.S. Boiler Co., Inc.
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