Interpretation #7277

Published November 19, 2013

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Original Request

Code Version
2010
Code
RESIDENT
Code Description
Residential
Chapter
3
Section
R303.8 Required Heating
Topic
Use of Window Units for Required Heating

Question

Is it the intent of section R303.8 Required Heating to disallow the use of combination Cooling/Heating Window Units for individual rooms.

Answer Published 11/19/2013 at 7:24 PM

Yes, units installed in a window, are not permitted to
satisfy the heating requirement. They can be used, but not
to satisfy the requirements for heating facilities in R303.8
as they are considered portable.

Commentary

Packaged Terminal Air Conditioner (PTAC) units are allowed to meet the requirements of the minimum heat requirement for occupancy. If a through the wall type unit, with sleeve, is installed similar to a PTAC, then it would satisfy the requirements of R303.8.