This is just a regular hydronic radiant system which is very efficient because it doesn’t need to heat the air. The thing is, hydronic systems have been around

This is just a regular hydronic radiant system which is very efficient because it doesn’t need to heat the air. The thing is, hydronic systems have been around for 70 years or more but they typically are not used for cooling because of the humidity issues that arise which are damaging to the building. So this can only be implemented in buildings with materials resistant to water damage. Hydronic radiant systems are the best around it terms of heating efficiency but very expensive to install. This article seems like hype and bs.