HVAC systems yuav tsum tau siv ntau yam khoom xws li cov kav dej, hoods, thiab cov khoom siv casings, uas feem ntau yog ua los ntawm cov khoom siv hlau.Txawm li cas los xij, nrog kev paub txog kev tiv thaiv ib puag ncig thiab kev txhim kho txuas ntxiv ntawm FRP thev naus laus zis, ntau thiab ntau lub tuam txhab tau pib siv nws rau HVAC kev lag luam.