I’ve always been interested in these, but the environmental cost to them is higher than the article would suggest: they’re emission free during use, for sure, but their construction represents a significant use of carbon.
They look attractive when compared with AC systems, but that’s an apples to oranges comparison - they can’t get nearly as cool as AC, and they can’t protect people on days with dangerous heat levels. When compared with a closer equivalent, fans, they are much less attractive in terms of energy savings.
They look attractive when compared with AC systems, but that’s an apples to oranges comparison - they can’t get nearly as cool as AC, and they can’t protect people on days with dangerous heat levels. When compared with a closer equivalent, fans, they are much less attractive in terms of energy savings.