flue

He described it as a bioethanol fireplace that does not need a chimney flue, where liquid is poured on to a cotton gauze to create a "candle effect".

However, sounds from things like flue organ pipes or flutes, which are propagated through air, would be pitched higher than Earth.

Both stoves are connected to a small flue - a pipe within a chimney that allows smoke to escape - that leads up through the chapel roof to the outside.

Oregon State University scientists have found a way to more than double the uptake ability of a chemical structure that can be used for scrubbing carbon dioxide from factory flues.

While renewable energy sources are already reducing the need for CO2-emitting, fossil fuel-burning power plants, industrial plants that make intense use of fossil fuels are harder to make sustainable, so flue gas capture is essential.