A tankless water heater uses high powered burners to rapidly heat water as it runs through the heat exchanger and is delivered directly to the faucets without a storing tank.
													
																	Tankless or tank gas water heater. 
								
	
		
	
																	As their name implies tankless or on demand water heaters don t store water in a tank. 
																	The 199 900 btu natural gas tankless water heater is designed to supply continuous hot water for up to 3 bathrooms at the same time. 
																	A tankless water heater is typically powered by gas or electricity. 
																	The rheem eco200xln3 1 outdoor natural gas tankless water the rheem eco200xln3 1 outdoor natural gas tankless water heater can provide up to 9 5 gpm at a 35 temperature rise. 
															
													
								
	
		
	
																	Instead they heat water as it passes through the unit using a heat exchanger to rapidly bring it. 
																	It uses high powered burners to rapidly heat water as it runs through a heat exchanger and deliver it directly to your faucets or shower without storing it in a tank. 
																	The doe notes that storage tank water heaters typically last 10 to 15 years while most tankless units have a life expectancy of 20 years or more. 
																	What is a tankless water heater. 
															
													
								
	
		
	
																	For pricing and availability. 
																	Smith signature select 8 gpm outdoor natural gas tankless water heater. 
																	Tankless water heaters heat water directly without the use of a storage tank. 
																	According to home depot it costs between 2 044 to 5 898 with the average being 2 979 to have a tankless water heater installed accounting for the heater installation materials any.