HVAC Air Quality

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BEFORE THE ARCHITECT – HOME DESIGNING BACKGROUND – UNIQUE HOME DESIGNING ARTICLES

 HOME BUILDING PROBLEMS - HVAC HOME AIR QUALITY

By Before The Architect  Copyright 2003-2009 Before The Architect



 

From time to time, people lie to me.  Straight out lie.  "I will send you . . ."  "I will call you . . ."  "I will write you . . ."  I will pay you . . ."  Or words to that effect, both written and spoken.  And then they don't do what they wrote or spoke.  I loathe and despise that behavior to my core.  That behavior diminishes the fundamental value of society, degrades our human capability and potential, stains me for even bearing its witness let alone bearing its consequences.  Before The Architect

hOME BUILDING PROBLEMS - HOME CEILING FAN AIR QUALITY

HVAC HOME AIR QUALITY 

HOME AIR QUALITY – HVAC 

bulletA furnace shall be direct vent or power vent
 
bulletA laundry clothes dryer exhaust vent
bulletShall be sited as far as possible from exterior-mounted HVAC compressors and
bulletNot less than out of line of sight
 
bulletAn HVAC professional shall be consulted and contracted in applications with back draft potential or exhaust insufficiencies, indicative of which but not to the exclusion of others
bulletExhaust conduit runs beyond manufacturer specification
bulletWell-sealed building envelopes
bulletMajor exhaust volumes from, for example,
bulletA large cfm range and oven exhaust fan
bulletSeveral bath and/or other exhaust fans
bulletMultiple fireplaces
 
bulletA multi-flue chimney shall be constructed such that each flue at its terminus
bulletShall be permanently and completely separated physically
bulletFrom its abutters
bulletFrom crown top of face to rain cap bottom of face
bulletFrom chimney side to chimney side, as by a full-length partition
bulletShall be not less than 10 linear inches on the vertical to the rain cap bottom of face
bulletShall otherwise be parted between flues to not less than manufacturer’s specifications
bulletWithout regard to any other backdraft safety measures
Comment:  Notably for gasser inserts, siting flues too close together requires setting the flue termini at different, unlikely attractive, elevations.  Spreading those flues at or beyond manufacturer’s or others’ specifications may be a practical and artful remedy. 

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