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I am using EE4 to do energy simulations, as required her for energy grant
submissions. It appears to be basically the same tool as EnergyPro4, with
each product adapted to local conditions. Does anyone have experience (they
wish to share) with modeling Ground Source Heat Pump systems with in-floor
heating and 4-pipe fan coil units for air distribution? The EE4 simulation
manuals leave MUCH to be desired, and the warnings/errors etc. from EE4 are
not very useful much of the time. Any help is greatly appreciated.

R. Crawford Brewer, P.Eng.

R. Crawford Brewer
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In-floor heating system could be modeled as a 4-pipe fan coil system that
requires no fan energy, see Page 6-8 of the modeling guide.

Then model the plant as "Combination Ground Source Heat Pump/Boiler Plants",
see page 4-17 of the modeling guide.

Thanks,

Harry Guo

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M.Eng. / Dipl.-Ing.(FH) Florian N?ske

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I am an old engineer but new to energy modeling. I am currently using EE4
and eQuest. Our firm works with Ground Source Heat Pumps for heating (in
floor hydronic) and cooling (chilled water for fan coils, etc.). Any help I
can get in modeling would be greatly appreciated.

R. Crawford Brewer, P.Eng.

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Crawford (and any other engineers out there, young and old, who are
interested in broadening their knowledge of building simulation):

It is still possible to register for the SimBuild 2008 conference, which
is taking place in Berkeley, CA from Wednesday to Friday of next week
(July 30 to August 1). It's an opportunity for people at all levels to
find out about new developments in tools and engage in discussions on
issues such as the use of simulation in BIM, LEED, 90.1 and Title-24,
education and training and tools for innovative design. Go to
http://www.ibpsa.us/simbuild2008/ for program information and
registration. Today is the last day for on-line registration; on-site
registration will also be available from 5:30pm PDT Tuesday. Please
contact me at

if you have any questions.

Philip Haves

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