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Home » heat pumps

Articles Tagged with ''heat pumps''

A photo of the Fujitsu AIRSTAGE J-7S VRF heat pump.

Fujitsu AIRSTAGE J-7S VRF heat pump

Fujitsu introduced a new line of VRF heat pumps.
June 27, 2025

These models offer greater flexibility, efficiency and more compact design. 


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The Daikin OTERRA single zone heat pumps

Daikin OTERRA single-zone heat pumps

Daikin OTERRA 115V single-zone systems are designed for ease of both installation and maintenance.
June 10, 2025

The heat pumps are optimized for quick, easy instillation. 


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The Centrus the Centrus air-to-water hydronic heat pump.

Lochinvar Centrus air to water hydronic heat pump

Lochinvar debuts air-to-water heat pump designed for year-round residential and light commercial use.
May 5, 2025

The new Centrus unit provides heating, cooling, and hot water from a compact system engineered for cold-weather performance and compatibility with standard North American components.


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ASHRAE

ASHRAE announces dynamic technical program for 2025 Annual Conference in Phoenix

Over 80 sessions and 10 ALI courses planned – early bird registration open through April 28.
April 26, 2025

The conference will feature panels, courses and technical sessions on a variety of topics. 


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Powerful heat pump for heating and air conditioning of a modern private house installed outside on the side of the house.
Renewable Heating Design | John Siegenthaler

Versatility in direct-to-load systems, part two

Going direct.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 8, 2025

Last month, we discussed direct-to-load hydronic heat pump systems. These systems use a variable-speed compressor and circulator to adjust heat output and flow, eliminating the need for a buffer tank or hydraulic separator.




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Geothermal Power Plant: Geothermal electricity is electricity generated from geothermal energy.

Demystifying ground source heat pumps

A guide to retrofit and new construction geothermal heat pumps.
Dave Yates
Dave Yates
April 7, 2025

GSHP systems have one primary significant difference: the outdoor refrigerant coil and fan are absent. Instead of these components, the functions of the outdoor condenser have been integrated into the indoor unit, resulting in a hybrid condenser and evaporator unit.


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International Geothermal Month graphic

Mission Geo celebrates International Geothermal Month

Public awareness and outreach effort spotlights the ground source heat pump.
April 4, 2025

GeoExchange collaborates with MIssion Geo to showcase benefits of geothermal heat pumps.


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Airstage Altair wall-mounted models featuring R-32 refrigerant

Fujitsu General America mini-split heat pump line

Fujitsu General America expands H-Series mini-split heat pump line.
April 3, 2025

Fujitsu General America debuts Airstage Altair wall-mounted models featuring R-32 refrigerant.


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Closeup of a team of industrial engineers meeting to analyze machinery blueprints and consult on a project on a table in a manufacturing factory.
Hydronics Workshop | John Siegenthaler

Build what you need: Availability and customization of heat pump systems opens doors of possibilities

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 2, 2025

The availability of heat pumps allows designers and installers of hydronic heating to include cooling. A simple method involves using a single air handler with a chilled water coil for a ducted distribution system, providing single zone cooling that can complement multi-zone hydronic heating in average houses.



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AO Smith technician shaking hands with a man standing by a heat pump water heater(HPWH).
Heat Pump Water Heaters

Training and education essential to keep up with heat pump market growth

Manufacturers offer installation and maintenance tips for contractors.
Brandon Paykamian
March 20, 2025

The heat pump water heater (HPWH) market is set to grow from nearly $100 billion in 2024 to $156.59 billion by 2030, fueled by energy efficiency regulations, rising energy costs, urbanization, and a demand for sustainable solutions.



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