Tankless Water Heater vs Tank Water Heater

When looking into Tankless Water Heater vs Tank Water Heater Comparison there are many pros and cons to both. Choosing which type of water heater to go with depends on what you are looking for and the space you have to accomadate a water heater.

Tank Water Heaters

Tank water heaters come in either gas or electric. There is a heavy inner steel tank that normally holds 40-60 gallons of water. The water is held in reserve, ready to be used. The tank is heavely insulated to keep the water hot,.There is a thermostat to control the teperature of the water. The water is normally kept at 120-180 degrees farenheit. In the average sized, single family home, one tank water heater is sufficient for all the hot water needs.

Tankless Water Heaters

With tankless water heaters there is no standby heat loss due to the water being heated as it is needed. There is no tank filled with water standing by.Tankless water hearter systems come in two varieties, point of use or whole house heaters. Point of use systems are hooked to one faucet and supplies water to just that one fixture.


A tankless water system can cost two to four times more than a traditional tank system. The price depends on the size and model you choose. If you choose the point of use type system you will need ti purchae several units, multiplying the cost several times. A price comparison shows that a typical 40 gallon tank water heater and a tankless water heater, that are similar in output, both providing two hot showers at once, differ in price by more than $700.00. The tank heater coming in around $220 capared to a single tankless heater at $980.

The tankless system can save you anywhere from a few dollars to hundreds of dollars over the years depending on your use. It may take quite a bit of time to recoup the the difference in cost if you go with the tankless system. In a tankless water heater vs tank water heater comparison it comes down to what type of use you need and how much you want to pay.