When it comes to insulated versus glass carafes, an important question remains for coffee obsessives: which ones keep your coffee hotter? Here's what to know.

Fortunately, traditional coffee makers are designed to help in one of two ways: with a hotplate under a glass carafe or in an insulated thermal carafe, which is often more expensive.

Comprising three panes of thermal insulation glass, the Iplus 3C easily outperforms older, uncoated alternatives and Ug-values down to 0.5 W/(m²K), which helps minimize heat loss.

The following insulated glass window systems, entrances, and facade solutions keep inhabitants comfortable without asking too much of the building’s HVAC system. (Courtesy REHAU) Aspekt+ 1800 ...