Remote exhaust for rack systems

1. A remote exhaust for a rack system, comprising:

branch lines coupling each of a plurality of individual chassis in the rack system to a main line;

at least one exhaust pump connected to the main line, the exhaust pump located to remove heat generated in each of the individual chassis to a physically remote environment;

a plurality of control valves configured to control air flow through the branch lines and the main line;

at least one sensor; and

firmware configured to operate the at least one exhaust pump and vary settings for the plurality of control valves in response to feedback from the at least one sensor; and

wherein at least some hot air drawn by the exhaust pump is used in a regenerative lower stream function, the regenerative lower stream function is at least one of the following: a building heating system and a water heating system.

2. The remote exhaust of claim 1 , further comprising an elastic heat resistant seal surrounding a back-end of each of the plurality the individual chassis.

3. The remote exhaust of claim 1 , wherein the branch lines and main line are made of a flexible material for ease of configuration.

4. The remote exhaust of claim 1 , further comprising an opening formed in a back-end of the individual chassis for accessing inside the individual chassis, and a hook-and-loop material cover for closing the opening.

5. The remote exhaust of claim 1 , further comprising at least one secondary exhaust pump to handle changes in operating conditions.

6. The remote exhaust of claim 1 , wherein the exhaust pump is operable at variable flow rates to handle changes in operating temperatures of the rack system.

7. The remote exhaust of claim 1 , wherein the sensor is configured to monitor temperature of the rack system.

8. The remote exhaust of claim 1 , wherein the exhaust pump draws air through a front-end of the chassis, past at least one heat-generating component in the chassis, and out a back-end of the chassis through the branch lines and main line to the remote environment.

9. The remote exhaust of claim 1 , further comprising cladding on the main line and the branch lines to substantially maintain the temperature of air in the main line and the branch lines.

10. A method comprising:

coupling branch lines to each of a plurality of chassis in a rack system;

coupling the branch lines to at least one main line;

connecting the main line to at least one exhaust pump to remove heat generated in each of the plurality of chassis to a physically remote environment;

monitoring operating conditions of the rack system;

varying the at least one exhaust pump and separately varying settings for airflow through the branch lines and the main line in response to different operating conditions; and

insulating the at least one main line and the branch lines to substantially maintain the temperature of air being exhausted.

11. The method of claim 10 , further comprising sealing the plurality of chassis in order to draw substantially all hot air from the plurality of chassis into the branch lines.

12. The method of claim 10 , further comprising adjusting air flow for changes in operating temperatures.

13. The method of claim 10 , further comprising recycling at least some hot air.

14. The method of claim 10 , further comprising sensing temperature of at least one of the plurality of chassis and adjusting air flow based on the sensed temperature.

15. A remote exhaust for dissipating heat in computers or other electronic devices, comprising:

branching means for coupling to each of a plurality of individual chassis;

main line means for coupling to each of the branching means;

exhaust pump means for removing hot air from each of the individual chassis through the branching means and main line means to a physically remote environment; and

means for varying the exhaust pump means, and means for varying settings for airflow through the branching means and the main line means, in response to different operating conditions; and

means for insulating the branching means and the main line means to reduce heat loss in air being exhausted.

16. The remote exhaust of claim 15 further comprising regenerative lower stream function means for recycling at least some of the hot air.