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Home » Topics » Columns

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Siggy

John Siegenthaler: A diversionary detail

Another circumstance where hydronic versatility adds value.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 27, 2021

The heating output and coefficient of performance (COP) of any hydronic heat pump is very dependent on the water temperature leaving the heat pump’s condenser. 


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The 7-Power Contractor

Al Levi: New practices for COVID-19

Great testimonials help keep the phone ringing.
7 Power Blog
Al Levi
April 27, 2021

There’s an ancient proverb that says, “The best time to plant a tree was 20 years ago.


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Nicole Krawcke

Nicole Krawcke: Reviews make or break contracting businesses

Once considered nice to have, online reviews are now essential for small businesses.
Nicole Krawcke head shot 2024
Nicole Krawcke
April 8, 2021

In today’s world, online reviews matter. I recently decided to switch dentists and find one closer to our new home. 


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Marketing Magic

Marketing Magic: Digital marketing tips for enhancing your success

Reach new customers and engage with existing ones.
Becky Brotherton
April 6, 2021

No longer an optional form of advertising, digital marketing has become the norm. 


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Codes Corner

Codes Corner: An introduction to IAPMO IS 34

This comprehensive document serves as the first illustrative manual of its kind in the nation.
Taylor Costea
April 6, 2021

IAPMO has collaborated with the National Electrical Contractors Association (NECA) and the Los Angeles Department of Water and Power (LADWP) to produce an installation standard for solar photovoltaic (PV) and energy storage systems (ESS) in residential applications. 


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Matt Michel

Matt Michel: 6 plans every plumber should make

Elements of a strategy to increase success.
Matt Michel
Matt Michel
April 5, 2021

Far too many plumbing contractors’ business strategy is to simply wing it.


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Dave Yates

Dave Yates: Heroes and zeros

Texas PHVAC contractors face unprecedented challenge.
Dave Yates
Dave Yates
April 5, 2021

As Texas settled into a deadly-serious Polar Vortex, you could predict the pattern emerging based on your own past experiences with bitter-cold sustained weather conditions: No-heat calls inundating your emergency calls; heating systems not able to keep up with demand; heating systems stressed to the breaking-point; followed by frozen water lines, water services and water mains; and then biblical flooding and damage once thawing temperatures arrived. 


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Kenny Chapman

Kenny Chapman: 4 simple steps for improving yourself

Only you can make yourself a better leader.
Kenny Chapman headshot with a white round border frame, 200x200
Kenny Chapman
April 2, 2021

We’re all leaders. We have people that work with us, clients to service, family and friends to pay attention to and our own fulfillment to work toward. It sounds like a lot, and it is. 


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Dan Holohan

Dan Holohan: Learning from history

Hydronic tidbits from the past.
Dan Holohan
April 1, 2021

We’ve come a long way since the days of gravity-hot-water heating. The physics haven’t changed a bit, but the systems sure have. 


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Siggy

John Siegenthaler: 4-way versus 3-way motorized mixing valves

Which is the better choice, and why?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 1, 2021

Although the market for gas-fired boilers continues to track toward those that can modulate and operate with sustained flue gas condensation, conventional boilers (e.g., those not designed to operate with sustained flue gas condensation) still represent a significant portion of the market. 


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