Residential solar combisystems provide domestic water heating and some percentage of space heating. Although less known than domestic hot water-only systems, combisystems can be practical and efficient if properly sized and designed.

Smoke Gets in your Eyes

It’s time to do wood-fired heating right.

April 19, 2013

By John Siegenthaler, P.E.

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Every August, I make a short trip to a local event call the Woodsmen’s Field Days. This gathering is all about cutting down trees and then slicing them up into either firewood or lumber.

Energy and Power

They're not the same thing

February 13, 2013

By John Siegenthaler, P.E.

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Most of you reading this column consider yourselves heating professionals.

Heat pumps are renewable energy heat sources

January 15, 2013

By John Siegenthaler, P.E.

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I recently read an Internet posting asserting that heat pumps, both air-source and geothermal, should not be considered renewable energy heat sources.

Do this, do that

December 1, 2012

By John Siegenthaler, P.E.

No Comments

A new piping concept and control wiring challenge.

Avoiding thermal depression

November 1, 2012

By John Siegenthaler, P.E.

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A new way to protect a heating system.

Larger than necessary

October 1, 2012

By John Siegenthaler, P.E.

No Comments

You’re probably oversizing expansion tanks in low-temperature systems.

Hydraulic separation revisited

September 1, 2012

By John Siegenthaler, P.E.

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It doesn’t have to be perfect to be effective.

Stating the obvious

August 1, 2012

By John Siegenthaler, P.E.

No Comments

Some recent discoveries about ducting.

Those other heat pumps, Part 1

July 1, 2012

By John Siegenthaler, P.E.

One Comment

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

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DEWALT media event at Stanley Black and Decker University

The DEWALT media event was hosted at the Stanley Black and Decker University in Towson, Md.
Photos by Mike Miagza

3/13/13 2:00 pm EST

Prepared to Navigate the New Lead-Free Laws?

AVAILABLE ON DEMAND Sail through lead-free law compliance. When piping a potable water system, the bronze valves you’re using have an expiration date –January 4, 2014. Find out what US Senate Bill S.3874 is about, how it compares to previous standards, and most importantly — how it will affect you.

Plumbing and Mechanical

2013 April

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Valve Handbook

Revised to include details on the latest technologies, Valve Handbook, Third Edition, discusses design, performance, selection, operation, and application. This updated resource features a new chapter on the green technology currently employed by the valve industry, as well as an overview of the major environmental global standards that process plants are expected to meet.

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