Linea Plus is an in-wall radiator unit that features Low-H2O technology, which allows the unit to heat quickly with relatively low energy consumption. It is well suited for use in low-temperature hydronic systems and with renewable-energy sources, such as solar or geothermal. The Linea Plus' design allows for any kind of pipe or vent to be hidden behind the front panel. It has a maximum surface temperature of 109° F, even when the water temperature is 194° F. It is available as a freestanding or wall unit in 25 different colors. Jaga North America; www.jaga-usa.com Featuring an integrated LED driver,
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.