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RadPad
 

RadPad logo Radiant Floor Heating System Sizing Calculator

ALL-IN-ONE DESIGN TOOL
for DIY'ers and Professionals

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all for only $9.95/yr
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STEP-BY-STEP: Everything you need to know in one complete package!

Use with any browser on computers, laptops or pads.
(may not funtion properly on some phones)

GREAT FOR SOLVING "What if?" PROBLEMS

Side A

Side B

COMPUTER SLIDE RULE

INCLUDES:

  1. Slide Calculator
  2. Tables for tube selection, floor covering and floor r-values
  3. Twenty-three page booklet containing step-by-step instructions on designing a radiant floor heating system, from calculating heatloss to tube layout and pump sizing

COMPLETE DESIGN TOOLS IN A SMALL PACKAGE

The RadPad Sizing Calculator is a powerful tool for quickly and easily answering complex "what if" questions to radiant floor heating system design problems.

SIDE 1 - Answers these questions

  • What floor Surface Temperature will be required to heat my space?
  • What Water Temperature will be required at design loads?
  • What is the maximum Floor Covering R-Value I can use on the floor?
  • What happens if I increase the Floor Covering R-Value?
  • What happens if I increase the water temperature?
  • How can I get more output from the floor?

SIDE 2 - Answers these questions

  • What Tube Size should I use?
  • What Tube Length is best?
  • What Tube Spacing will give the best output?
  • What will be the Flow and Head Pressure for pump sizing?
  • What happens if I use longer tube circuit lengths?
  • How can I reduce head pressure?
  • What happens if I use a larger tube?
  • How does changing tube spacing affect floor output?

EXCEL WORKBOOK

Our Excel Spreadsheet Workbook allows you to input your design information step by step and does some of the calculations for you.

  • Zone by Zone input sheets
  • System Summary page
  • Report printout

workshee

 

INSTRUCTION GUIDE

instruction 1

  1. Getting Started
  2. Heat Loss Calculations
  3. Floor Output
  4. Floor Covering
  5. Floor Surface Temperature
  6. Average Water Temperature
  7. Supply Water Temperature
  8. Tube Selection and Size
  9. Tube Spacing
  10. Total Tube Required
  11. Tube Circuit Length
  12. Number of Circuits
  13. Actual Circuit Length
  14. Flow Per Tube
  15. Pressure Drop
  16. Summarize Circuits
  17. Zone Flow
  18. Zone Pressure Drop
  19. System Flow and Pressure Drop
  20. Heating System Design
  21. Work Sheets

Instruction 2

©2016 Drake Internet Publishing • Loveland, CO • www.drakeip.com