The importance of Tankless Water Heater increases in winter when ground water becomes colder and to keep the temperature at acceptable level becomes really hard. It is an affordable and convenient heating option during the cold chilly season. There is no need for storage tanks as Tankless Water Heater enables the direct supply of hot water within no time.  When a hot water tap is turned on then cold water moves through the unit, electric element or gas burner heat it and provide hot water with 2 to 5 gallons per minute rate which is enough to perform many households. The most interesting thing is that they heat up the water when you need it and save the energy bills.

Functionality of Instant Water Heaters

Water is heated directly in tankless heaters so there is no need for storage tanks. Cold water moves through the unit and is heated by a gas burner or electric element that means these heating devices ensure the instant supply of hot water in your tap. Gas-fired tankless heaters are more efficient than their counterparts with 80-85% efficiency but many electric tankless heaters provide 98+% efficiency. Meanwhile, electric Tankless Water Heaters are lower in cost then many tankless gas heaters.

Tankless Water Heater

The effectiveness of your water heater depends on your need of using water because sometimes gas units also fail to deliver sufficient supply of hot water especially when you are using a shower and dishwasher at once. So, if hot water usage in your home is higher then consider to install more tankless units. Now, I will briefly explain some pros and cons of tankless water heater for your knowledge.


  • Instant Hot Water: These heaters ensure the instant and unending stream of hot water within no time without the necessity of bulky storage tanks.
  • Longer Lifespan: Another significant advantage of tankless water heaters is their lifespan as a standard and quality unit can last for a decade while a tankless unit can work for twice as long. So, a long lasting tankless unit can keep you away from the worries of replacement.
  • Fewer Monthly Costs: Although these systems are very costly but they are almost 22% more efficient than traditional systems. The monthly savings can be fewer but hundred dollars can be saved annually.
  • Longer Warranties: Tankless water heaters have long lifespan so as the warranties. Hence, you don’t have to pay anything for repairs or replacement.  The warranties can be as long as 20 years which is an average lifespan of a tankless unit.
  • Ideal for Smaller Homes: A tankless water heater is ideal for smaller homes which eliminate standby loss and provide sufficient supply of instant hot water.
  • Space Savings: Tankless water heaters occupy small space then bulky storage models for being small in size which is a great benefit for small home owners. These systems are generally mounted on walls.
  • Solar Heating: Solar water heating is also getting famous these days as these units end the necessity to reroute gas lines or install new electrical equipment. Solar water heaters only work in sun shine and they can be used in any climate so installation cost can be recovered quickly.

Tankless Water Heater


  • Inconsistent Temperatures: One of the common buyers’ complaints is inconsistent water temperatures which are caused due to the heater’s incapability to deliver enough hot water to multiple outlets at once. Secondly, these heaters are not always turned on in case the faucet is slightly open for shaving etc.
  • Higher Initial Cost: Long lifespan makes these units more costly than traditional systems. Secondly, the installation cost of these models is also very high.
  • Additional Equipment: Additional equipment like water softener is required to let tankless water heaters run properly which also take up more space.

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