The efficient air conditioning unit comes with cabin heater. (cardekho.com)
I got an engine / cabin heater installed into my car right before winter, which was great for driving comfort this winter. (mechanics.stackexchange.com)
If you desire a diagnostic to determine exactly why there is inadequate cabin heat, please request a non functioning cabin heater diagnostic and the responding mechanic will come right to your location and get this resolved for you promptly. (yourmechanic.com)