sizing and flow rates

Discussion in 'Vertical and Horizontal Loops' started by Alex1990, Jan 16, 2018.

  1. Alex1990

    Alex1990 New Member

    so ive re run my heat load calcs since finally had fridge weather in negatives hear in wi. so by my math need 4 ton heat pump. this house far from as seal up as i had thought. so in spring when im re pointing the rubble stone basement i figured id run the ground loop at same time as will have the excavator to do it. so a 4 ton system with wet heavy clay soil and soil is always wet. i figured need 500 ft per ton. run in 6 3/4 loops. at 335 ft per loop, the system requires 12 gpm so should be 2 gpm to each loop so between unit head loss and the field a 25 ft of head rated pump should be enuff i think.the anti freeze be 30 percent methanol. how close to correct am i? the btu load is 41000, so unless free up funds for more insulation/demo rebuild. i know i will need the eletrice heat to keep up on the most wickedly cold days. house 1300 plus 255 sqft if get an upstairs attic converted this year.
  2. docjenser

    docjenser Well-Known Member Industry Professional Forum Leader

    What kind of heat pump are you using? Model?
  3. Alex1990

    Alex1990 New Member

    geo cool, single stage, 4 ton, Model #:GCHP01048V.

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