Lower monthly costs and increased efficiency make a high-velocity system attractive in a new home. If you choose high-velocity when planning your construction, it is much easier to fit the system into your plans. However, the high-velocity is also very easily fitted into your existing home. Again, this is thanks to the small, flexible components.
Remember that tubing is only about two inches in diameter. It can also bend somewhat. That means it's small enough to fit between studs in a wall or between ceiling rafters. Hence, you will not need to do any major work in your home. Installers can easily work around existing studs and rafters. They can also snake the tubing inside the walls.
These factors keep installation costs down. You won't pay people to tear down any plaster or drywall to install it. Similarly, there is no need to repaint and paint the walls later. And, of course, less construction means less stress on you and your family.