Is mechanical space that contains unit heaters but no other heating or cooling considered unconditioned area for the purposes of Table PIf3-1?
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Emily Catacchio
Sustainability SpecialistWight and Company
610 thumbs up
October 28, 2011 - 10:02 am
Hi Kenneth,Generally mechanical space is considered "unconditioned." but in this case, what are the "unit heaters" used for?
Kenneth Van Riper
Associate PrincipalCommonwealth Architects
18 thumbs up
October 28, 2011 - 11:35 am
Thanks for your reply Emily! Generally the unit heaters are to protect mechanical equipment and piping from freezing temperatures.
Emily Catacchio
Sustainability SpecialistWight and Company
610 thumbs up
November 1, 2011 - 3:13 pm
Hi Kenneth,So, would these units normally be off, most of the time? I do not have specific experience with this sittuation, so I cannot say for sure. I think if they are only turned on when the pipes may freeze, I would consider that "unconditioned space." However, a reviewer may disagree.Anyone have experience with this?
Kenneth Van Riper
Associate PrincipalCommonwealth Architects
18 thumbs up
November 2, 2011 - 1:53 pm
I believe the heaters would be controlled by a thermostat that would turn them on when the temperature went below a certain level.