[Equest-users] Heating Source Question
jeff at rbgb.com
Wed Jul 23 05:45:08 PDT 2014
My take is that the system type selections are based on the HVAC heating
energy source and are not dependent on the water heating source. If the
proposed HVAC system is all electric then System 8 seems to be the correct
For the water heating, the fuel source must be the same for baseline and
However, if the building now has a gas supply, the design team may want to
evaluate the feasibility of a gas (HVAC) heating system.
Jeff Ross-Bain, PE, LEED AP BD+C, BEMP
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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On
Behalf Of Richard Ellison
Sent: Wednesday, July 23, 2014 7:49 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Heating Source Question
I am modeling an all-electric building. My baseline building is a system 8
PFP VAV with chillers and electric resistance heat.
We are considering adding natural gas water heaters for high dishwasher and
shower loads. It does not seem like this should change the building to an
electric/hybrid with the baseline system changing to system 7 with a
hot-water gas boiler as the architect has suggested. The proposed HVAC
heating source is still 100% electric.
Has anyone dealt with this heating source question? What was the
Thanks in advance,
R I C H A R D E L L I S O N
BEAP, BEP, BEMP, BESA, CBEP, CDSM, CEA,
CEM, CMVP, CTAB, DGCP, HBDP, LEED AP, PE
Manager of Energy and Simulation
22340 Dresden Street, Suite 177
Dulles, VA 20166
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