search
cart
facebook instagram twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
  • NEWS
  • PRODUCTS
    • FEATURED PRODUCTS
  • CONTRACTORS
    • BATH & KITCHEN PRO
    • BUSINESS MANAGEMENT
    • HIGH EFFICIENCY HOMES
    • TECHNOLOGY
    • WATER TREATMENT
    • PMC COLUMNS
      • Dave Yates: Contractor’s Corner
      • John Siegenthaler: Hydronics Workshop
      • Kenny Chapman: The Blue Collar Coach
      • Matt Michel: Service Plumbing Pros
      • Scott Secor: Heating Perceptions
  • ENGINEERS
    • CONTINUING EDUCATION
    • DECARBONIZATION | ELECTRIFICATION
    • FIRE PROTECTION
    • GEOTHERMAL | SOLAR THERMAL
    • PIPING | PLUMBING | PVF
    • PME COLUMNS
      • Christoph Lohr: Strategic Plumbing Insights
      • David Dexter: Plumbing Talking Points
      • James Dipping: Engineer Viewpoints
      • John Seigenthaler: Renewable Heating Design
      • Lowell Manalo: Plumbing Essentials
      • Misty Guard: Guard on Compliance
  • RADIANT & HYDRONICS
    • RADIANT COMFORT REPORT
    • THE GLITCH & THE FIX
  • INSIGHTS
    • CODES
    • GREEN PLUMBING & MECHANICAL
    • PROJECT PROFILES
    • COLUMNS
      • Codes Corner
      • Natalie Forster: Editorial Opinion
      • Guest Editorial
    • SPONSOR INSIGHTS
  • MEDIA
    • EBOOKS
    • PODCASTS
    • VIDEOS
    • WEBINARS
  • RESOURCES
    • INDUSTRY CALENDAR
    • DIRECTORIES
    • PM BOOKSTORE
    • CE CENTER
    • MARKET RESEARCH
    • CLASSIFIEDS
  • EMAGAZINE
    • EMAGAZINE
    • ARCHIVE ISSUES
    • CONTACT
    • ADVERTISE
    • PME EMAGAZINE ARCHIVES
  • SIGN UP!

IAPMO’s Water Demand Calculator version 2.2 available for download

IAPMO.gif
June 23, 2023

The International Association of Plumbing and Mechanical Officials (IAPMO) announced its Water Demand Calculator version 2.2 is now available for download.

While the basic template of version 2.1 of the calculator remains intact, version 2.2 includes several new features. First, version 2.2 implements a new algorithm called the method of convolution to replace exhaustive enumeration. The new algorithm is faster and has a smoother transition to the other methods of computation. This new computation method assures accurate predictions of peak indoor water demand.

A second new feature of the Water Demand Calculator version 2.2 is the enhanced display showing the method of computation. After running the Water Demand Calculator, a new box in the computed results column shows the exact algorithm used in the calculation.

A third new feature of version 2.2 is that the results of the peak flow calculation are now downloaded in a Microsoft Excel spreadsheet rather than a text file. The spreadsheet displays all the results and the list of fixtures and fixture counts entered into the calculation. An updated user guide is also available for version 2.2.  

“The Water Demand Calculator has become more robust while remaining fast, accurate and user-friendly,” said Dan Cole, IAPMO’s senior director of Technical Services. “Increasing the accuracy in predicting peak water demand for single- and multifamily dwellings will lead to reductions in pipe sizing accompanied by additional cost savings.”

The Water Demand Calculator version 2.2 and user guide may be downloaded at https://www.iapmo.org/water-demand-calculator/.

For specific information about the Water Demand Calculator or to provide feedback, please contact Dan Cole at dan.cole@iapmo.org.

This article was originally posted on www.pmengineer.com.
KEYWORDS: design design calculator IAPMO plumbing systems Water Demand Calculator

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

Recommended Content

JOIN TODAY
to unlock your recommendations.

Already have an account? Sign In

  • Worker using the Milwaukee Tool SWITCH PACK drain cleaner

    Pipeline profits: Drain cleaning, pipe inspection create opportunities

    Drain cleaning and inspection services offer lucrative...
    Green Plumbing and Mechanical
    By: Nicole Krawcke
  • Uponor employee, Arturo Moreno

    The reinvestment in American manufacturing and training

    Plumbing & Mechanical Chief Editor Nicole Krawcke and...
    Plumbing News
    By: Nicole Krawcke and Natalie Forster
  • March 2024 Women in Plumbing hero image of woman engineer overlayed by circle of hexagon shapes with numbers from 1 to 10

    Celebrating 10 Influential Women in the Plumbing Industry

    Celebrating Women's History Month and Women in...
    Plumbing News
    By: Nicole Krawcke
Manage My Account
  • eNewsletters
  • Online Registration
  • Subscription Customer Service
  • eMagazine
  • Manage My Preferences

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the Plumbing & Mechanical audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of Plumbing & Mechanical or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • J.J. Keller CMV vehicles on road
    Sponsored byJ. J. Keller & Associates, Inc.

    The dash cam game-changer for small business safety

Popular Stories

Heat pump of air-water technology for the home.

Rethinking Heat Transfer: Why 'Natural' Isn't Always Ideal for Air-to-Water Systems

Bath & Kitchen Pro 2025 Cover 900x550 hero image

eBook | Fifth annual Bath & Kitchen Pro

Solar rooftop on apartment condo building in Nashville, Tennessee. Production of clean ecological electrical energy. Renewable electricity with zero emission.

The Age of Deregulation? Proposed Changes to Federal Energy Efficiency and Water Conservation Standards

2025 Bath & Kitchen Pro eBook

Events

November 13, 2024

Future Proofing MEP: Navigating the 2026 High Efficiency Water Heating Standards

Join our deep dive into DOE’s new standards so you can future-proof your MEP practice.

EARN: 0.1 ASPE CEU; 1 AIA LU/HSW; 0.1 IACET CEU*; 1 PDH

View All Submit An Event

Poll

Will business be up or down in 2025?

Do you anticipate business in 2025 to be up or down in comparison to 2024?
View Results Poll Archive

Products

The Water Came To A Stop

The Water Came To A Stop

See More Products

Download the FREE Water Conservation, Quality & Safety eBook: Plumbing Trends Increasing Safe Water Availability

Related Articles

  • IAPMO Logo

    IAPMO’s Water Demand Calculator Version 2.0 now available for download

    See More
  • IAPMO.gif

    IAPMO seeks Water Demand Calculator consensus body members for development of ANSI/CAN Standard IAPMO Z1403

    See More
  • Home construction with hot and cold blue and red pex pipe layout in pipes new bathtub house PVC wastewater system.

    California homebuilder leads the way as early adopter of IAPMO’s Water Demand Calculator

    See More

Related Products

See More Products
  • CPK-cover1.jpg

    College of Product Knowledge ebook (PDF download)

  • M:\General Shared\__AEC Store Katie Z\AEC Store\Images\Plumbing\new sites\edr.gif

    E.D.R. - Ratings for Every Darn Radiator (and convector) you'll probably ever see

  • howcome.gif

    How Come? Hydronic heating questions we've been asking for 100 years (with straight answers!)

See More Products
×

Keep your content unclogged with our newsletters!

Stay in the know on the latest plumbing & piping industry trends.

JOIN TODAY!
  • RESOURCES
    • Advertise
    • Contact Us
    • Directories
    • Store
    • Want More
    • Supply House Times
  • SIGN UP TODAY
    • Create Account
    • eMagazine
    • eNewsletter
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • Instagram
    • YouTube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2025. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing