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Home » heat pumps

Articles Tagged with ''heat pumps''

Lochinvar commercial heat pumps

Lochinvar commercial heat pumps

August 14, 2020

Lochinvar recently launched 20 new commercial heat pump models ranging from 25,000 to 250,000 Btu/h, and with modular installation capabilities up to 2 million Btu/h. 


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HVAC Life cycle

Evaluating life cycle cost of various HVAC systems

An important part of the selection process.
Kyle DelPiano
July 14, 2020

Upfront costs and energy consumption are primary drivers when selecting a commercial HVAC system in new and retrofit projects.


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Siggy

John Siegenthaler: Have a problem — need a solution

Our industry needs a better way to insulate circulator volutes.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 21, 2020

Part of running any business is looking ahead and trying to read the “tea leaves” that are relevant to that business. 


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May Glitch

The Glitch and Fix: Hardware heavy

May 15, 2020

A client asks a heating contractor to set up a floor heating system for a new 7,500 square foot machine shop.


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John Siegenthaler: Three inputs, one output

Multiple strategies for heating domestic water.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
March 5, 2020

I recently designed a system for my daughter’s new home with a water-to-water geothermal heat pump as its main heat source. 


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: A simple way to set up lead/lag heat sources

Who’s on first?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
February 27, 2020

I’m fortunate to be living next door to a very unique hydronic heating/cooling system.


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Glitch and Fix Figure 1

The Glitch and Fix: Mixed mode

January 27, 2020

An installer is trying to wire up a two-stage heat pump for heating and cooling operation.


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Radiant Comfort Report

Hydronics Industry Alliance hosts breakfast meeting at AHR Expo

November 8, 2019

Also at the 2020 AHR Expo in February, the Hydronics Industry Alliance — the Commercial (HIA-C) committee of the RPA — will once again host a breakfast meeting on Feb. 5.


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The Sanders family

Voltex Water Heater stars in PBS’ “Ask This Old House”

New water heater reduces family’s monthly electric bill.
Brandon Stepanek
September 11, 2019

Richard Trethewey is the heating and plumbing expert on the popular PBS home improvement show “Ask This Old House.” For an October 2018 episode, Trethewey met with homeowner Scott Sanders, who needed to replace an ailing 20-year-old electric tank water heater.


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Dave Yates

Dave Yates: Heat pump mayhem

Think twice before you act.
Dave Yates
Dave Yates
September 11, 2019

Mmanufacturer of air-to-water heat pumps called asking if I would be willing to visit a home to perform a heat loss/gain calculation where two of its heat pump systems had been installed and determine why the home was not heating and cooling to the homeowners satisfaction.


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