HVAC Phone Apps
Anybody use these on the droids etc.? I know there is a duct sizing app and a gas pipe app.
There not free though......how they be?
To put the world in order, we must first put the nation in order; to put the nation in order, we must put the family in order; to put the family in order, we must cultivate our personal life; and to cultivate our personal life, we must first set our hearts right.