Zoning: Laundry/Bathroom with heating

Created by Vicki Marshall, Modified on Fri, 2 Dec, 2022 at 12:07 PM by Vicki Marshall


Region: All States


Assessor Question:


I have a laundry with slab heating and a first floor bathroom with a heating outlet. I've read the NatHERS tech note (5.4, 5.5, 5.7 page 11) but can't find anything mentioned about the zoning rule when these zones are heated. I know the old rule was to call it a daytime zone, I'm not sure if that rule has been superseded. 


TechLink Response:


  • Yes correct, you would model these zones as day time.
  • However, keep in mind that there must be one unconditioned zone

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