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
  • 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!
Plumbing NewsColumnsGreen Plumbing and Mechanical

Heat up your bottom line with DHW recirculation

By Anthony Tosco
DHW recirculation system

A family of four can save an average of 12,000 gallons of water each year with a DHW recirculation system. Photo Credit: Anthony Tosco/Avanti Plumbing and Heating

Anthony Tosco owns Avanti Plumbing and Heating in Montgomery County

Anthony Tosco owns Avanti Plumbing and Heating in Montgomery County, Penn. Photo Credit: Anthony Tosco/Avanti Plumbing and Heating

availing recirculation for homes without dedicated return line

For retrofit work, availing recirculation for homes without dedicated return line, easy-in packages typically use the cold return line to complete the recirc loop. Photo Credit: Anthony Tosco/Avanti Plumbing and Heating

Anthony Tosco
Anthony Tosco owns Avanti Plumbing and Heating in Montgomery County, Penn. Photo Credit: Anthony Tosco/Avanti Plumbing and Heating
DHW recirculation system
Anthony Tosco owns Avanti Plumbing and Heating in Montgomery County
availing recirculation for homes without dedicated return line
Anthony Tosco
June 28, 2017

Long, long ago, man’s earliest and most important need for an essential natural resource was for water. It was clean and plentiful in most parts of the world.

Then we became infatuated with gold and enamored with the power of oil. The industrial revolution brought incredible progress, and yet we seem to have forgotten the need to protect that one key resource; today, it’s more important than ever.

So step aside, gold. Move along, crude oil. At last, maybe we’ve come to see that our most precious resource on earth is … water.

That’s what a growing number of scientists and environmentalists claim. And for anyone who occasionally tunes in to the evening news, reads a newspaper or scans headlines online, it’s apparent that we’ve put ourselves in a pretty serious bind. Either we act now to preserve clean water or — ultimately — we’ll lose it.

Yes, yes — that’s right. You’re just one of seven-plus billion people on Planet Earth. But you may own a company. You may interact with customers who have concerns about this, too. And — as I’m doing today by writing — we can champion the good cause.

According to The Water Project, a non-profit organization focused on improving water availability and quality in Africa, as many as a billion people don’t have daily access to pure drinking water.

Of course, that’s third-world Africa, but there are many other regions worldwide that have the same challenge.

Right here on the humid East Coast, versions of the problem are now happening. And in our very own South, Southwest and West regions, concerns about the availability of plentiful, clean water are growing quickly.

Rob Ferraud, owner of Valley Plumbing in Bermuda Dunes, Calif., says he’s seen homeowners try just about everything to conserve water, or make up for the lack of it.

The drought that’s gripped much of the West Coast for a number of years is still going strong, despite more recent rains brought by El Nino and good snowpack this past spring. Residents are literally painting their dead lawns green and placing bricks in their toilet tanks to reduce the gpf.

And in a lot of homes, there are buckets in the shower to collect clean water while waiting for hot water to get to the tap. They save it to drink, flush toilets or water plants. It may seem silly at first, but — after all — it can take a long time for hot water to get to the tap.

 

Conservation, cost and convenience

As a plumbing professional, however, I’m glad to offer customers an alternative to catching water in a bucket.

Installation of hot water recirculation systems has now become a mainstream offering here at Avanti Plumbing & Heating.

I’ve been so surprised to learn that many homeowners still don’t know the systems exist. And, among them, plenty would be interested if we took the time to tell them about it. In my experience, most who learn from me about these simple devices are eager to have them installed. And, I’ll add: It’s profitable work!

After all, a family of four can save an average of 12,000 gallons of water each year. That’s a lot of water. And, they not only pay to pull it from a municipal source, they also pay to send it back down the drain as they wait at the sink, or for a warm shower.

I think of hot water recirculation — or simply “recirc” — as one more very useful tool in the toolbox. That is, the toolbox of products and practices I use to provide comfort and customer satisfaction.

Consider, too: Does the customer have more than two kids, pets, or a big house? Then they stand to save even more water. Of course, if they draw water from a municipal source, the cost of water adds up quickly.


Gone are the days of a standard circulator that runs 24/7/365. Even analog timers, once the early choice for recirc systems, are rudimentary today.


For instance, in Arlington, Va., residents pay $4.21 per 1,000 gallons of metered water consumption. Then, to dispose of it as it flows down the drain, they pay the going sewer rate of $9.06 per 1,000 gallons. At about $160 per year for 12,000 gallons, it doesn’t take long to make up the cost of a small circulator.

It’s not all about conservation or cost, though. It’s also about convenience. According to Randal Williams, owner of Randal’s Plumbing, in Palm Desert, Calif., time is a big factor to a lot of his clients. Five minutes spent waiting for hot water to reach the kitchen or bathroom every day adds up to 30 hours per year.

 

Picking the right pump

Just as a reminder, the lead-free laws enacted in 2014 mean that it’s not possible to take any old heating system circulator and sweat it into place for a potable water system. A number of manufacturers have developed a wide range of lead-free residential recirc systems to fit just about any application.

For new construction, or in a home with dedicated recirc lines, options abound. Most circulator manufacturers — in addition to a few water quality companies — offer drop-in circulators, many of which come with a timer, allowing the homeowner to set the time of day the circulator runs.

For retrofit work, availing recirculation for homes without dedicated return line, easy-in packages typically use the cold return line to complete the recirc loop. This is usually accomplished with a small diverter valve that installs under the water fixture located farthest from the hot water source.

Like everything else (my phone, my truck, my kids), DHW recirculation systems are getting smart. Gone are the days of a standard circulator that runs 24/7/365. Even analog timers, once the early choice for recirc systems, are rudimentary today. Systems are now available with “adaptive” technology — they pattern hot water use in the home, then pump hot water at the times it was used during the recording period.

Consider adding domestic hot water recirculation to your service offering. It’s an additional source of revenue. I’ve found that most customers like knowing about it as an option, especially for use in larger homes where wait times at the tap are typically longer.

You’ll always find a few folks that just don’t care, but others will wonder how they’ve survived without it.

KEYWORDS: green plumbing hot water water heaters

Share This Story

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

Anthony Tosco owns Avanti Plumbing and Heating in Montgomery County, Penn. The company provides plumbing, heating and AC service and installation in the greater Philadelphia area, but specializes in hydronic heat. Tosco is also a columnist for the ACHR News.

Recommended Content

JOIN TODAY
to unlock your recommendations.

Already have an account? Sign In

  • 2025 Next Gen ALL-STARS hero 1440

    2025 Next Gen All Stars: Top 20 Under 40 Plumbing Professionals

    This year’s group of NextGen All-Stars is full of young...
    Plumbing & Mechanical Contractor
    By: Kristen R. Bayles
  • Worker using the Milwaukee Tool SWITCH PACK drain cleaner

    Pipeline profits: Drain cleaning, pipe inspection create opportunities

    Drain cleaning and inspection services offer lucrative...
    Plumbing News
    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
Manage My Account
  • eNewsletters
  • Online Registration
  • Subscription Customer Service
  • eMagazine
  • Manage My Preferences

More Videos

Popular Stories

Hot water pipes

Campus shutdown at Oakland University exposes hidden risks of aging hot-water infrastructure

Floor heating manifold cabinet with flowmeter and PEX pipe.

Elegance extended: How to use the homerun system of connecting heat emitters

Industrial pressure gauge on a tank.

From cutting edge to classic: How to modernize outdated pneumatic control systems

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
eBook | 2025 Radiant & Hydronics All Stars

Related Articles

  • Practical Management: Add 20 Percent To Your Bottom Line With Value Engineering

    See More
  • Your image affects your bottom line

    See More
  • Sustainability: The Triple Bottom Line

    See More

Related Products

See More Products
  • 51EpbH0yOwL__SL210_.jpg

    We Got Steam Heat!

  • cengagebook.jpg

    Heating with Renewable Energy

  • 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