Heat pump water heaters started from early refrigeration ideas in the 1700s. They saw slow growth mid-1900s but struggled due to cheap fuels and tech issues.

Outdated ground heat exchanger (GHEX) design methods are driving up costs and complexity in ground-source heat pump (GSHP) systems. In part one of this two-part series, Albert Wallace introduces modern, modular best practices that optimize system efficiency, cut expenses, and improve long-term reliability.

With strong federal backing and growing collaboration between low- and high-temperature technologies, the geothermal industry is poised to reshape America’s energy future through integrated thermal networks that boost efficiency, resilience and sustainability.

With the potential to act as thermal batteries, heat pump water heaters offer major energy and cost savings through load shifting—if connectivity, compatibility, and control hurdles can be overcome.

Ariston Group's Kyra Macaroco shares how a quiet revolution is reshaping the heating industry as decarbonization moves from buzzword to blueprint, challenging contractors and manufacturers to rethink how we heat our homes—one heat pump at a time.

Achieving EnergyStar V3.2 certification with geothermal energy is good for the home builders, homebuyers and the overall construction community.

My heat pump water heater tour across America took me to a number of stops to those at the vanguard of carbon-cutting ways to heat water.

SmithGroup’s Ting Cai and JB Pham discuss energy-efficient architectural design and the role of energy modeling in optimizing building load separate from HVAC systems.

Thermal energy network events in early 2025, including five significant gatherings across various locations, highlight the growing importance of geothermal technology in urban energy systems. 

The 1 Java Street project in NYC’s Brooklyn borough is the largest mixed-use development in New York state to incorporate a ground-source geothermal system for heating and cooling.