There are cars that are faulty, dangerous and scams. But nobody says that this means that all cars are terrible.
I've got first-hand experience of two CWI installations, both make the place much warmer with no downsides.
Those with issues make lots of noise. Those who are happy with it don't say much or anything, they just quietly get on with their lives, living in comfort and with lower bills.
It's not that different to the anti-vaccine thing, where a few freak events are used as fake evidence by crackpots to make a point that's not supported by the evidence.
I've got first-hand experience of two CWI installations, both make the place much warmer with no downsides.
Those with issues make lots of noise. Those who are happy with it don't say much or anything, they just quietly get on with their lives, living in comfort and with lower bills.
It's not that different to the anti-vaccine thing, where a few freak events are used as fake evidence by crackpots to make a point that's not supported by the evidence.