• Does anyone have experience of modelling an air supported structure to ascertain the heat loss.

    We have a project where our client is looking to provide a new air supported structure/ dome over an existing training pitch, the structure is to be heated and cooled as required. Can this be modelled using Hevacomp.

  • Lighting consumption Part L

    Hi Im running a Part L calc for a health care facility, using LED lighting everywhere. the lighting design has been completed according to design standards. but my actual lighting end use is double the notional. what would cause the notional building…

  • XML Generation for EPC

    I've been trying since 6PM GMT to generate an xml for EPC lodgement. Its now 12AM GMT and still nothing. The latest upgrade is installed. This needs lodging by 12PM 26/09. Anybody any pointers?

  • RE: HVAC Systems - Zones

    Hi Matt, I would firstly advise caution if you are intending to use Part L to determine if natural ventilation is required, as SBEM is not a design tool indicative of real-world conditions. (To see if natural ventilation is required you would need to…

  • RE: Update to Hevacomp PartL for SBEM 5.3.a

    Just to follow up on the above; should any other users be seeking information about the pending Update, please note that all developments will be immediately announced here .

  • RE: Update to Hevacomp PartL for SBEM 5.3.a

    Hi Brian - All the development work has been completed and the program is with DCLG for final accreditation. We are expecting this to go well and be able to provide an update to your current software within the next week or so. This will also contain…

  • RE: PartL Result & Compliance Results Not Generating

    Hi Jamie, I thought that may be the case, as SBEM has a limit to the amount of surfaces it can handle in a model. Please see below from the iSBEM manual: There is a way around this in Hevacomp by using Room multipliers - please see here for guidance…

  • Why is the Hevacomp BRUKL Document not showing Solar Thermal Systems?

    Hi, Please would someone be able to help me. I have been trying to complete an SBEM for a client and this one part of the BRUKL document won't show up when I run the compliance section of the Part L in Hevacomp. On the roof of the building in question…

  • Level 5 - DSM - Hot Water Service within 'Plant Data'

    Hello, I am trying to model an Indirect Water Cylinder within 'plant data' for a Level 5 EPC. One of the variables that the software asks for is 'heat losses from unit' with the units being W/degree C. Within SBEM, the heat loss is stated…

  • Part L (Simulation) not recognising changes made within Part L (Design Database)

    Hi have just been modelling a building - Level 5 EPC and I have been adjusting the air permeability and lighting information within Part L design database. Once I had the building 'passing' within Part L Simulation - I then went back into Part L design…

  • SBEM HVAC System type

    Hello, Does anyone know how your supposed to add an LTHW radiant heating system into SBEM? They allow for direct fired gas but not wet. Regards Andrew

  • Free PartL 2013 update courses for existing Hevacomp Assessors

    Please note that this offer is no longer available Bentley Systems are offering a free Hevacomp Ask the Instructor session for all existing Hevacomp Energy Assessors with a valid certificate. This is a 2 hour online training course where we will…
    • How to add your personalised LEARNing path.pdf
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  • PARTL 2013 - Now Available

    Bentley are pleased to announce that Hevacomp V8i (v26) has now been released which includes updates to the PartL 2013 regulations. This release has a brand new unified install and will install alongside Hevacomp v25 if required. The unified install…

  • Part L 2013 Regulations

    While BRE made Part L 2013 SBEM data available in December 2013, this was largely for testing purposes and for software developers of SBEM interfaces such as Hevacomp. As the actual switchover date to the 2013 regulations is not until April 2014 we do…
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