Job opportunities in Madison or Chicago

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The Energy Center of Wisconsin is seeking energy engineers with a desire to apply both reason and creativity towards the creation of a sustainable energy society. Both entry level and senior positions are available. We are a private non-profit organization that is mission-driven, independent, and objective. Primary responsibilities of the positions include analysis of energy efficiency and renewable energy alternatives for buildings, campuses, and communities; project management; and quantification of environmental and economic impacts of energy strategies. Further information can be found at:

Scott Hackel, PE, LEED AP

Scott Hackel's picture
Joined: 2011-09-30
Reputation: 1

Hi all:

I am trying to simulate hot water radiators in an older building (No Cooling). My 1st choice was 4-pipe fan coil with no cooling. Then someone told me to run DX cooling with a hot water coil (again, cooling zeroed out).

The DX approach causes a heating increase of approximately double the energy. No pumping energy increase. Fans have airflow but zero HP.

What could be causing this?


John R. Aulbach, PE, CEM

John Aulbach's picture
Joined: 2011-09-30
Reputation: 1


I can't answer your question about heating doubling, unless it's introducing ventilation air.

I may be oversimplifying, but have you tried describing as no cooling equipment, baseboards for heating equipment on a hot water loop, system type: HW Baseboards (only) with NO zone ventilation, and assign a boiler system?


Busman, Michael R's picture
Joined: 2012-07-12
Reputation: 0

John, What's up buddy... Haven't crossed your path in awhile.

Why don't you choose the system type- "heating and ventilation", You should be able to simulate hydronic heating with ventilation , but no issues/inputs for the cooling side.

Send me your file if you want me to look at your current system approach.


Sent from my iPhone

Pasha Korber-Gonzalez's picture
Joined: 2011-09-30
Reputation: 600