A piping framework and corresponding standardized control sequence, upon which HVAC engineers develop their schematic designs. A TGH is a continuous pipe filled with water or glycol that has a hot end and a cold end with a gradient of variable temperature zones in...

The TGH concept was developed over a15 year period by a design-build mechanical contractor challenging the HVAC status quo. Our path was the relentless pursuit of thermal energy efficiency based on first principles of science with the objective of lowering cost,...