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Home » Topics » Market Sectors » Solar Thermal/Geothermal

Solar Thermal/Geothermal
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The latest news, trends and equipment for solar hot water and geothermal heating/cooling systems.

ARTICLES

Geothermal Room

Geothermal offers win-win solution for the environment and commercial building owners

Energy-efficient technology features low operating and maintenance costs, and a long life expectancy.
Nicole krawcke
Nicole Krawcke
October 15, 2020
No Comments

There is an increasing awareness — among consumers and governments alike — that climate change and greenhouse gas emissions have a severely harmful impact on the environment. 


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heat pumps and buffer tanks

John Siegenthaler: Combining heat pumps with buffer tanks

Keep these tips in mind when the heat source is a single-speed ‘on/off’ device.
Siegenthaler
John Siegenthaler P.E.
April 16, 2020
No Comments

Whenever a hydronic system is divided into several zones, it’s worth considering a buffer tank between the heat source and distribution system.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: Why geothermal earth loops need expansion tanks

Siegenthaler
John Siegenthaler P.E.
March 26, 2020
No Comments

There are sorted opinions about using expansion tanks within closed geothermal earth loops. 


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Webstone Thermostatic Mixing Valve Solar

Thermostatic mixing valve: Temperature control for solar heat

December 11, 2019
No Comments

Webstone, a brand of NIBCO, introduces the new Thermostatic Mixing Valve for high-temperature solar heat sources.


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New hybrid electric water heater from Rheem.

Rheem hybrid electric water heater

November 19, 2019
No Comments

The Prestige Series hybrid electric water heater from Rheem is Energy Star-rated and its high 3.55-3.70 UEF reduces operating cost.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: Tracking energy flows in a geothermal heat pump

It all adds up.
Siegenthaler
John Siegenthaler P.E.
October 14, 2019
No Comments

Geothermal (a.k.a. ground-source) heat-pump systems continue to be a popular topic in HVAC discussions. Many state and federal agencies are now offering generous incentives for installation of geothermal heat pumps in both residential and commercial applications.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: A geo turnaround

A new detail for horizontal earth loops.
Siegenthaler
John Siegenthaler P.E.
September 11, 2019
No Comments

I recently helped install a closed-loop geothermal heat pump system for my daughter, her husband and their 1-year old son, Henry.


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Thermal excess flow valve

Thermal excess flow valve from Brasscraft Mfg. Co.

August 22, 2019
No Comments

Brasscraft Mfg. Co. continues its legacy of innovation with an enhanced version of its patented Safety+Plus Excess Flow Valve (EFV).


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: A geothermal comfort solution

Hydronic details that enhance a geothermal heat pump.
Siegenthaler
John Siegenthaler P.E.
June 20, 2019
One Comment

The geothermal heat pump market is headed for another strong year in 2019. The 30% uncapped federal income tax credit on EnergyStar-rated geothermal heat pumps remains in full effect.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: iPads are no replacement for hands-on experience

Get your hands dirty
Siegenthaler
John Siegenthaler P.E.
May 15, 2019
2 Comments

Over the last few months, I’ve had several inquiries from people eager to get into the hydronics industry.


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