Hover over main image for caption information. A typical oil fired forced hot water heating system, installed in 1980 was ready for replacement. The original boiler room equipment was removed, which ...

Last month I wrote about early steam heating and how experimentation led to discovery, which led to new products or piping techniques. This time I will be writing about the early days of gravity hot ...

Nothing too complicated about this project—use solar radiation, a principle as old as the sun itself, to heat water. The trick is transferring the energy from one body of water (your solar hot water ...

When Terry McIlveen built his home in Maine in 1997, he made the unusual choice to install radiant floor heating. “People thought I was nuts,” he says. However, since that time, radiant floor heat has ...

Researchers at the University of Zaragoza in Spain have proposed a new design for energy systems based on photovoltaic-thermal (PVT) panels integrated with an air-to-water heat pump via thermal ...

Panasonic and Australia's Reclaim Energy have teamed up to offer heat pump technology that can heat water up to 80 C, for both residential and commercial use. The offering pairs Panasonic’s CO2 Heat ...

Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. While touring the laundry rooms and closets of Olympia, Washington after the Passive House ...

To achieve peak efficiency and prevent corrosion, steam and hot water boilers in hydronic heating systems require regular maintenance. Neglecting this can lead to increased service calls and a ...

Conventional district heating systems are generally designed around the load. However, an alternate approach would be to design around potential heat sources, including the waste heat from power ...