The right sound system can revolutionize your movies, games, and music into an immersive audio experience. You can transform your living room into a mini home theater, whether it's soundbars ...

The former usually has two heat exchangers while the latter has one, manufacturer Navien explains ... should be targeted instead of the higher-efficiency tankless models. Every six years, the DOE is ...

Tankless gas water heaters heat water using either a condensing or non-condensing method. The former usually has two heat exchangers while the latter has one, manufacturer Navien explains.

If the policy takes effect, as it is slated to on March 11, a little less than 40% of the tankless water heaters currently on the market would be banned, according to an estimate from the ...

The new rules will require new tankless gas water heaters to use about 13% less energy than today’s least efficient tankless models. US CHAMBER OF COMMERCE, OIL GROUP SUE VERMONT OVER LAW ...

Headache Two studies assessing the effect of increasing water intake by 50.7 fl oz (1.5 L)/day for three months in patients with recurrent headaches yielded conflicting results. One, which ...

Meet the Air Force’s secretive long-range drone that flies for days The robot surveillance aircraft can fly for 80 hours without refueling. Audrey Decker, Staff Writer B-21 production is a go ...