HVAC

How to model an Air Source Heat Pump with fuel backup?
There are two options for modeling an Air Source Heat Pump with a fossil fuel backup system (Dual Fuel Heat Pump): (Simplest) Simply model one ASHP system...
Mon, 30 Apr, 2018 at 9:21 AM
How to Handle Dehumidifiers
Though dehumidifiers can sometimes be a large energy consumer, they are not a minimum rated feature and do not need to be included in a HERS Rating unless t...
Wed, 8 Aug, 2018 at 11:20 AM
Multiple Duct Systems Failing IECC Leakage Requirement When Aggregate Leakage Passes
Some users have asked us if a home with multiple duct systems must meet the IECC duct leakage requirement for each duct system or aggregated across all syst...
Tue, 2 Apr, 2019 at 2:30 PM
Duct Testing Exemptions in Ekotrope
Ekotrope supports duct testing exemptions for both IECC (2009 and newer), and ANSI/RESNET 301. The various exemptions and how to model them in Ekotrope are ...
Mon, 6 Apr, 2020 at 3:08 PM
Modeling the Heating and Cooling Portions of Preconditioned Mechanical Ventilation
Some mechanical ventilation systems may precondition air by either heating or cooling it. These heating and cooling systems need to be accounted for in the ...
Mon, 29 Jun, 2020 at 3:14 PM