I think the flexible hoses are very common in newer houses. The labor costs are much lower. It also performs well in cold climates. Apparently the technology st

I think the flexible hoses are very common in newer houses. The labor costs are much lower. It also performs well in cold climates. Apparently the technology started in Germany in the 80s so it is well proven. Matt Risinger, a high end home contractor has some great videos on this technology. https://www.youtube.com/watch?v=KZX0aTvbEzo https://www.youtube.com/watch?v=KZX0aTvbEzo https://www.youtube.com/watch?v=OOeBJ8mDr8Q https://www.youtube.com/watch?v=OOeBJ8mDr8Q