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Residential Snow Melt

Chuck_7
Chuck_7 Member Posts: 71
in THE MAIN WALL
1. Has anyone done a residential snow melt system directly off the heating system (without a heat exchanger)?

We are looking at a ground source heat pump system with a few areas of radiant floor. These areas all have concrete floor or tile floor so the low temp water provided by a water to water heat pump should not be a problem (I think without getting into it).
However, (again without getting to far into it) I think the snow melt wants a higher temperature (not to mention higher glycol %). Anyone had this combination of systems?

Comments

  • Mark Eatherton1
    Mark Eatherton1 Member Posts: 2,542
    Snowmelt requirements...

    vary by location. Where I'm from, the load is around 125 to 150 btuH/Sq foot. At this rate, each ton of GSHP would be capable of doing 80 square feet. If you have no load diversity, you will short the house for heat during dual load conditions.

    I'm thinking that if you use aheat exchanger, you won't get the approach tempeatures you need to insure proper operation of the snowmelt system. We need 140 degree F fluid temps to guarantee 150 btu/sq ft/hr in these parts.

    Glycol in the system will negatively affect the overall performance of the rest of the system too.

    Proceed with caution...

    ME

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