vacuum heating

vacuum heating

[′vak·yəm ′hēd·iŋ]
(mechanical engineering)
A two-pipe steam heating system in which a vacuum pump is used to maintain a suction in the return piping, thus creating a positive return flow of air and condensate.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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In addition to a number of smaller ovens and the large capacity vacuum heating treating ovens, Best Cutting Die has large, state-of-the-art cryogenic chilling chambers with the capability of subzero treating to 300 degrees.
Most moisture analyzers use one of four drying methods--convection, vacuum heating, infrared or halogen.
All these problems can be resolved with a vacuum heating system.
Basic information on the vapor vacuum heating and condensing boiler (VVHCB) combo is presented in Appendix B.
Vapor vacuum heating (VVH) technology employs the heat pipe concept for heat distribution in buildings.
Modern leak-tight plumbing allows vacuum heating systems to evolve