They use a fan or blower to expel gases through a sealed vent that s installed horizontally.
													
																	What is power direct vent water heater. 
									
	
		
	
																	A power vent is used to push exhausts through ventilation pipes. 
																	Direct vent models can only be attached to your home s chimney where the gasses are vertically expelled from the heater. 
																	The gases can also be expelled vertically through a pipe to the roof. 
																	Some locations don t have access to a chimney or vertical vent so your options are limited. 
															
													
									
	
		
	
																	Power vent water heater power vent systems derive their combustion air from inside your home. 
																	A power vent water heater differs from the older direct vent water heaters in terms of where the venting is found. 
																	A power vent water heater uses a fan or blower to assist in the removal of exhaust gases from the hot water heater. 
																	These pipes can be position both vertically aka through a roof or horizontally through a sidewall. 
															
													
									
	
		
	
																	If the water heater is installed in a location that doesn t have access to a vertical vent or chimney a power vent water heater may be your only option. 
																	A power vent water heater uses a blower or fan to exhaust gases by pushing them through vent pipes that are horizontal. 
																	With a power vent model the vents exhaust horizontally out of a pipe. 
																	The air is drawn from outside using a vent pipe and a rotatable motorized blower forces the exhaust outside.