Makina a HVAC amafuna kugwiritsa ntchito zinthu zambiri monga mapaipi, ma hood, ndi ma casings a zida, omwe nthawi zambiri amakhala opangidwa ndi zitsulo.Komabe, ndi chidziwitso chowonjezereka cha chitetezo cha chilengedwe komanso chitukuko chosalekeza chaukadaulo wa FRP, mabizinesi ochulukirachulukira akuyamba kuzigwiritsa ntchito pamakampani a HVAC.
