Namely, at an inclination of 90°, the PVTW system recorded an electricity efficiency of 3.3%, a thermal efficiency of 17.6%, and a maximum outlet water temperature of about 42 C. “Compared to a ...

According to the U.S. Department of Energy, a home can lose roughly 30 percent of its heating energy through windows. Thermal curtains manage this loss by trapping air between layers of material ...

Even the highest-rated windows present ... we turned off daytime interior lights and scored how well the curtains prevented outdoor light from leaking in. To test thermal control, we compared ...

The weather outside is frightful, but it doesn't need to feel that way indoors. These fixes help keep the cold air outside ...

A Dutch startup is already marketing a thermal insulating glass only eight millimeters thick that offers the same level of insulation as triple-glazed glass with a chamber, used in the most efficient ...

Not long ago, thermal scopes were superfluous gadgets. Now, they’re essential kit for serious predator and hog hunters. This collection of thermal sights includes military-grade scopes that cost more ...

While every serious thermal hunter is going to want a dedicated heat-detecting rifle scope, I’d make the case that thermal monoculars and binoculars are more versatile than weapon-mounted sights. The ...