Water coming out exhaust pipe. Water leaking from a furnace exhaust pipe is a sign of bigger problems. Water in exhaust pipe. Its definitely not as concerning as flames shooting out from underneath the hood but it just seems wrong doesnt it. In this case physically remove the PVC pipes and clean them using a regular shop-vac. Both gases can be dangerous if they leak back into your house. Your car engine forms water and carbon dioxide after an internal combustion process. Since the exhaust system is designed to extract the heat from combustion and place it out the back of the car the longer the pipe the more the heat dissipates as it travels through those pipes. You need to check if there are any damages.
Why water comes out. If it happens due to these reasons then there is no need for alarm. The gases use the exhaust pipe to leave the room. There are several reasons why you might see water dripping out of your exhaust many of which are quite normal.
Thats why at the end of the pipe the gasses coming out are cool if you put your hand over it on an idling engine. Both gases can be dangerous if they leak back into your house. But if there will be a continuous drip after driving or during driving you have to check your cylinder head gasket. And itll usually come out of your exhaust in the form of water droplets that spew out of your tailpipe slowly.
Take note while water is dripping white smoke is also noticed if head gasket is damaged. The more the engine cools down the water condensation in the exhaust becomes visible to those from the outside. If a portion of water leaks out from the pipe or the drain trap then inspect the leakage point for any cracksholes. There are several causes for water leaking from your furnace exhaust pipe and demand immediate attention. But if you have petrol coming out of your exhaust pipe or if water is running from your exhaust after your car has been running for a.