Articles by John Siegenthaler, P.E.

Stating the obvious

Some recent discoveries about ducting.
Read More

Those other heat pumps, Part 1

Air-to-water heat pumps offer new opportunities for hydronic pros.
Read More

Sidearm revamp

Updating an old approach using modern hardware.
Read More

Beware of bottlenecks, Part 2

Sometimes the Btu just canít squeeze through.
Read More

Beware of bottlenecks, Part 1

Too little flow causes too many complaints.
Read More

Retrofits made easy

What’s often impossible with forced air becomes straightforward with hydronics.
Read More

They're not boilers

Designing hydronic systems around outdoor wood-fired furnaces.
Read More

Baseboard makeover

A modern approach to a traditional means of hydronic heating.
Read More

Coil envy

Why don’t North American indirect tanks have larger heat exchangers?
Read More

Transitions, Part 2

How to extract more heat from a storage tank.
Read More

Multimedia

Videos

Image Galleries

2014 Truck of the Month

PM has featured so many great plumbing service trucks! See plenty of them here in our Truck Of The Month Archives page. Are you proud of your truck? Go to our Truck of the Month page to find out how your service truck could be chosen!

1/27/15 2:00 pm EST

Grow Your Business and Improve Operations with New Payment Technology

Attend this free webinar to learn how new developments in payment technology can help you close more jobs, increase upselling opportunities and improve operations.

Plumbing and Mechanical

.

2015 January

The January issue of PM features cover story: 2015 Plumbing Contractor of the Year: Jim Steinle and Atomic Plumbing.

Table Of Contents Subscribe

Where do you look for new employees?

Where do you look for new employees?
View Results Poll Archive

The Plumbing and Mechanical Store

2015.jpg
2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

STAY CONNECTED

Connect to PM on Facebook Connect to PM on Twitter  Watch PM on YouTube    Connect to PM on Linked InGoogle+

Truck of the Month

Truck of the month

Are you proud of how your service truck looks? Do the graphics give people whiplash as they drive by? Have your calls increased because people remember your truck — and your company name? If so, we’d like to see it, too! Click here to find out how your service truck could be chosen as PM's Truck of the Month.