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  • OpenBuildings Energy Simulator PartL Exam - December 2021

    We are pleased to announce the next OpenBuildings Energy Simulator PartL exam has been scheduled for: 9th December 2021 at 10am - available for registration here . The exam is for energy assessors who wish to become accredited with using OpenBuildings…

  • Error - "Keyword" error message

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Part L Subarea: N/A Overview When running a PartL calculation you may come across an SBEM error…

  • Error - "Bad reference : CONSTRUCTION"

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Part L Subarea: N/A Overview This article details the steps to take should the below error occur…

  • Error in Solar Gains

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Calculations Subarea: CIBSE Overview Users might see the " Err " reported in the table of solar…

  • OpenBuildings Energy Simulator PartL Exam - October 2021

    We are pleased to announce the next OpenBuildings Energy Simulator PartL exam has been scheduled for: 14th October 2021 at 10am - available for registration here . The exam is for energy assessors who wish to become accredited with using OpenBuildings…

  • Daylight Simulation Room Contours

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Area: Dynamic Simulation Subarea: Daylight simulation Overview Daylight contours can be helpful in visualizing the effect of daylight…

  • OpenBuildings Energy Simulator PartL Exam - August 2021

    We are pleased to announce the next OpenBuildings Energy Simulator PartL exam has been scheduled for: 25th August 2021 at 10am - available for registration here . The exam is for energy assessors who wish to become accredited with using OpenBuildings…

  • Creating Custom Materials

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Data Managers Subarea: Materials Overview You can create a new material as per your requirement…

  • Creating Rooflights

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Area: Building Modelling Subarea: Roof modeling Overview This article outlines how to place rooflights or roof openings in an Energy…

  • Condensation Risk Analysis

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Data Managers Subarea: Materials Overview Condensation risk often needs to be assessed prior to…

  • OpenBuildings Energy Simulator PartL Exam - June 2021

    We are pleased to announce the next OpenBuildings Energy Simulator PartL exam has been scheduled for: 21st June 2021 at 10am - available for registration here . The exam is for energy assessors who wish to become accredited with using OpenBuildings…

  • PartL error "Keyword out of range : PITCH = 180"

    Hi, When running PartL, I get an error of Keyword out of range : PITCH = 180 Do you know the cause of this at all (I have one pitched roof that I have double checked and seems ok)

  • OpenBuildings Update 8 approved for PartL

    We are happy to announce that OpenBuildings Energy Simulator Update 8 has been fully approved by the Energy Performance of Buildings Division for use in England, with Wales to follow. Please note this version must be used to create XML files for PartL…

  • Workspaces and Worksets

    Articles on how to use Workspaces and Worksets in OpenBuildings Energy Simulator.

  • Infiltration settings

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Building Modelling Subarea: N/A Overview This article provides guidance on entering Infiltration…

  • Manually deleting surface elements

    Product(s): OpenBuildings Energy Simulator Version(s): All Environment: N/A Area: Troubleshooting and Errors Subarea: Materials Manager Problem If the geometry of your building model has been…

  • Surfaces deleted from project tree after trying to 'Setup' a roof.

    When I 'setup' roofs I'm getting an error of "Object reference not set to an instance of an object" and it causes parts of room surfaces to be removed from my project tree and not associated with any floors, yet they can still be seen in the views. …

  • Atrium and Double-Height Spaces

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Area: Building Modelling Subarea: Design Tips and Guidance Overview The software allows you to easily model atrium spaces, double…

  • AM11 Document

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Dynamic Simulation Subarea: N/A Overview Building service design is now frequently carried out…

  • Printing your Building model

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Area: General Information Overview This article explains how to print / plot a copy of your OpenBuildings Energy Simulator model. Method The…

  • How do I edit glazing properties for doors and windows?

    How do I model an external door with glazing? I understand that for the Part L calculation, the software treats any door with more than 50% glazing as a window, but how do you set the glazing percentage on a door? I've also altered the default glazing…

  • Is there a way to edit multiple wall sub-types from partition to exposed and vice-versa?

    I am working with a series of drawings that I have imported from Hevacomp to EnergySimulator. In the transition many of the internal walls have been changed to exposed walls. I can easily change the sub-types but it's a slow process doing it for each…

  • Managing Energy Simulator Projects on a Shared Server

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: General Information Subarea: N/A Overview This article details how Workspaces and Worksets can…

  • OpenBuildings Energy Simulator PartL Exam - March 2021

    We are pleased to announce the availability of the OpenBuildings Energy Simulator PartL course, along with the related exam. These are aimed at energy assessors who wish to become accredited with using OpenBuildings Energy Simulators PartL SBEM interface…

  • Unable to Trace Rooms

    Product(s): OpenBuildings Energy Simulator Version(s): CONNECT Edition Environment: N/A Area: Building Modelling Subarea: N/A Overview When tracing a room on occasion you may find that it will…
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