Saturday, 3 September 2011

Riddle me this...

This clearly labelled pipe is in the basement of our apartment building. WHAT DOES IT MEAN???

1 comment:

  1. Some heating systems, especially for large buildings, use hot water to distribute heat. It's similar to a radiator system, but instead of a radiator, it heats air that is blown into the rooms. They are often based on gas furnaces, which are much more cost-effective than resistive electrical heating elements.