In this image, we can see a man working on a furnace. He is holding a white plastic container with a red label on it and appears to be pouring something into it. The man is wearing a black t-shirt and is standing in front of the furnace. The furnace is grey in color and has a metal pipe running along the side. There is a label on the side of the machine that reads "HVAC". The man seems to be in the process of installing or repairing the furnace, as there are various tools and equipment visible in the background.