Dear to whom it may concern I am having an issue with adjusting rate of infiltration for the heat loss as well as getting a result for heat loss for the roof. I also have an issue with the results that have been generated by heavacomp I am getting a hi

Hi Rodgers,

There are quite a few different topics in your query but please find a few pointers below that should assist:

*Please note that if you are altering or drawing a roof, then you must set up the roof afterwards (CAD Input>Roof/floor menu).

*With the above in mind, I would suggest double-checking the surfaces in each room using the Design Database Print function, to ensure that the correct ones have been applied.

*You may be editing variables which are irrelevant to that particular calculation - for example please find guidance on glazing data here.

Regarding the infiltration rate; are you editing the figures in Room Data for Summer and Winter a/c rate? If so could you please clarify the exact issue?

Hi Shane 

Ive figured out how to get the required heat loss for the whole building , some of the walls were exposed which interfered with the results, the issue was I was getting a higher value for heat loss than the one calculated manually. IL try and adjust the Room Data ac rate to see if It will alter the infiltration. If I add the roof at the room after constructing  the model will it taking into account the heat loss from the roof thanks for your time Shane.

Kind Regards 

Rodgers Kaunda 

No problem Rodgers, let us know if you need anything else.

Will do thanks Shane 

Hi Shane 

I am having an issue with the Xrefs lining up in hevacomp, the top floor is not aligned to the ground floor I have checked the Xrefs on Autocad everything lines up perfectly thanks for your time Shane.