TANK VS TANKLESS

TANKLESS WATER HEATERS

Size: Small and compact (take up less space)
On-Demand: Water is heated and supplied as needed
Your location: Your geographical location can also impact tankless sizing because the temperature of your supply water can affect how much water can be heated at any given time
The water heater adjusts flame output as needed to assure temperature is maintained
Size based on maximum usage per minute
Tankless heaters work best in a household where multiple showers are taken one right after the other
Available in natural gas, propane, or electric
Gas tankless water heaters use power or direct venting and electric units do not need to be vented

Size: More bulky/heavy than a tankless
Continuous: Water in the tank is heated and reheated regardless of usage or demand
Hot water can be limited or delayed due to over usage of hot water: When there are multiple fixtures and appliances running simultaneously for extended periods, the wrong size tank may not contain enough hot water to support your activities and will take some time to heat back up again
Sediment and scale can build up at the bottom of the tank with years of use.
Tank heaters work best in a situation where a household might use multiple showers at the same time every morning
Runs on natural gas, propane, oil, or electricity
Gas and oil tank water heaters use the chimney, power, or direct venting and electric units do not need to be vented.