[Equest-users] Space Heat Output

Matthew Higgins higgins at edi-arch.com
Wed Jul 30 16:10:02 PDT 2008

Does anyone know why I cannot model a VAV AHU with a steam loop/boiler 
for space heat?

It is a central AHU with zone boxes, therefore I am modeling (1) 
Air-Side HVAC System.

When reviewing the output consumption using this configuration I do not 
see any energy consumption for space heat, but when I switch to a 
furnace instead of the steam I am able to produce logical /practical 
consumption numbers. What am I doing wrong?

Thank you in advance.

Matthew Higgins, LEED AP
Technical Specialist
Environmental Dynamics, Inc.
Architecture and Sustainability Consulting Services

Any data provided by the Consultant, verbal or written, are to be considered opinions of building energy and/or daylight performance. The Client understands that the Consultant has no control of occupant habits, equipment or material performance or characteristics, site or climate conditions or the Contractor's method of assembly, and that the Consultant's opinions regarding building energy/daylight performance are made on the basis of the Consultant's professional judgment and experience. The Consultant makes no warranty, express or implied, that the energy/daylight performance of the building will not vary from the Consultant's opinion of building energy/daylight performance.

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