Comparing different HVAC systems performance

[faisaldurr]

Hello,

I am trying to compare for a residential home the performance of the standard central heat via radiators and air source heat pumps via under floor heating. If I do select these both systems and run simulations I see that both give the exact same "system heating load" and "boiler load". If I just want to know what is difference of the energy consumption and sizing of these systems where can I find that information in Vista? Thank you.

Regards,
Faisal.

[Terence]

In Vista, select the relevant results file, make sure Model level variables are displayed and select the Energy tab. Under Model Energy Variables you can then select Total System Energy.