Text taken from their brochure:
“The fundamental advantage of HOTBLOK System is its fantastic thermal insulation power factor, U=0,15 W/m2K, which is enough for construction of energy-saving houses, and even passive houses.
Walls built in HOTBLOK System will be comfortably warm,
breathing, durable and healthy.”
It is similar to the Poroton block. Anyone use it yet? Please let me know.