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RadPad quick design calculator

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hot_rod
hot_rod Member Posts: 22,143
in Radiant Heating
Developed by Larry Drake the longtime director and founder of the RPA Radiant Panel Association, now the Radiant Professional Alliance, part of IAMPO. A association that promotes and trains hydronic and radiant professionals, become a member.

The online version and tutorial of the RadPad here.

This is a handy tool for both design and troubleshooting. Step 1perform an accurate heat load calculation, step 2 system design

https://www.drakeip.com/RadPad/index.html
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream
Alan (California Radiant) ForbesGroundUpSTEVEusaPA

Comments

  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,002
    edited March 2020
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    I hope Larry is doing well. Nice guy.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • hot_rod
    hot_rod Member Posts: 22,143
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    Alan (California Radiant) Forbes said:

    I hope Larry is doing well. Nice guy.

    He stopped by the AHR show in Orlando, lives in Florida now. Looks to be doing fine, started flying again, has a good group of flying buddies down there.

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,002
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    He should be proud of all his efforts. He was tireless.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • icy78
    icy78 Member Posts: 404
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    Does anyone know if the classic paper or cardboard version of the slide rule is still available anywhere?
  • hot_rod
    hot_rod Member Posts: 22,143
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    Larry doesn't have any, no longer in the RPA bookstore or at Supply House.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    icy78
  • GroundUp
    GroundUp Member Posts: 1,907
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    Awesome, thanks Bob! I've been looking for one of the cardboard versions for a couple years now and had no idea there was an online version available. Just opened a subscription!
  • hcpatel78
    hcpatel78 Member Posts: 151
    edited March 2020
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    How to get access of RADPAD after subscription?
    Thank you,
    Hiren Patel
  • GroundUp
    GroundUp Member Posts: 1,907
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    hcpatel78 said:

    How to get access of RADPAD after subscription?

    Log in

  • icy78
    icy78 Member Posts: 404
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    > @hcpatel78 said:
    > How to get access of RADPAD after subscription?

    They send a link to it. I didnt recieve it at first, (or missed it) I emailed him and he sent it again.
  • hcpatel78
    hcpatel78 Member Posts: 151
    edited March 2020
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    icy78 said:

    > @hcpatel78 said:

    > How to get access of RADPAD after subscription?



    They send a link to it. I didnt recieve it at first, (or missed it) I emailed him and he sent it again.

    yes.
    I got to access the way you mentioned. First, enter your preferred login and password then click the subscribe button.
    Thank you,
    hiren
    Thank you,
    Hiren Patel
    icy78

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