Radiant/Hydronics

Rinnai hybrid tank-tankless water heater

The Rinnai Hybrid Tank-Tankless Water Heater combines a tankless water heater with an energy-efficient and durable 40-gal. storage tank.
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It is for emergency replacement or for users looking to increase their hot-water supply without reconfiguring their current set up. The 91,500 Btu heater produces more than 180 gal. of hot water in the first hour.


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What can you do to affect the performance of your heating systems?

More power.
By Ray Wohlfarth
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One of the things I have learned about this industry is that no matter how much you think you know, things can still surprise and humble you


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Don’t forget the water heater

It’s an important part of energy-efficiency upgrades.
By Philip Picotte
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The orphan water heater concern actually stems from a positive development in home heating.


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Heat pump water heaters can conserve energy and save homeowners money

While the water’s hot.
By Nadia Askar
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A heat pump water heater is like a refrigerator in reverse.
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ACCA Conference highlights energy-efficient systems

The conference was held March 17-19 in Nashville, Tenn.
By Kelly Faloon
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The 2014 ACCA Conference included a radiant and hydronics track sponsored by the group’s Radiant & Hydronics Council.


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How flow rate affects heat output

When “thinking mathematically,” most people think in proportions.
By John Siegenthaler, P.E.
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German water.


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How heating systems began

I was having a conversation the other day with Mr. Ara Marcus Daniels.
By Dan Holohan
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We were talking about early heating systems, Ara and I. I had questions and he had answers. When you want to know stuff about how things began, it pays to ask someone who has been dead for a while. Guys like that were there at the start and saw most of it for themselves.


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Brent Noonan named Uponor North America vice president of sales

Previously, Noonan was Uponor’s South regional sales director.
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Noonan has served as vice president of U.S. Sales since May 2012.


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Xylem’s Bell & Gossett Little Red Schoolhouse announces second quarter training schedule

It’s time to spring into action and engage in continuing education with Bell & Gossett.
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Sign up for the latest dates for Xylem’s Bell & Gossett Little Red Schoolhouse 2014 seminars.


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Two-stage, water-to-water heat pumps

Roth’s geothermal heat pump systems are insulated with sound-deadening material.
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Variable-speed ECM blower motors are standard on all Roth equipment. The coated air coils prevent corrosion and ensure longevity.


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2014 Truck of the Month

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9/16/14 9:00 am PDT

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HOLDRITE will be hosting a free webinar for Acoustical Isolation on Tuesday, Sept. 16, 2014.

Plumbing and Mechanical

2014 August

2014 August

In the August issue of PM, read about the continued construction and renovations being made to hotels and restaurants. Find out the focus of this year's ISH China show will be, who made this month's Truck of the Month and read what Elkay has to say about their commercial construction expansion. Also, read the latest news and discover the newest products being used by professionals in the plumbing and mechanical industry.
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2014 National Plumbing & HVAC Estimator

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

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