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Tankless Water Heaters vs Conventional Water Heaters

To the builders and architects, hot water is a big deal these days because the buyers nowadays only show interest in homes which are energy efficient and economical in operation. DOE’s Office of Energy Efficiency and Renewable Energy reveal that water heating accounts for fourteen to twenty-five percent of home’s expenses or even higher. Here are some of the comparisons between the tankless and the conventional water heaters that might help in choosing the more economical and efficient type of heater.


According to, the most energy efficient water heating option is the tankless water heater. As opposed to the conventional hot water tanks which heats water in a reservoir the whole day, tankless heater will only heat water to meet the need of hot water as per that time. The gas burner instantly heats water to its preset temperature, hence efficiency is achieved. further promotes tankless water heater as energy efficient by stating that it saves approximately 27-50% of energy. According to Energy Star™, a typical family saves $100 or more annually with an Energy Star tankless water heater. supports the tankless water heaters on the basis of the life span. While the lifespan of the conventional tank heaters stands at around 10 to 13 years, tankless water heaters last for approximately up to 20 years. This will there save a lot on replacement fee.


On space economy, the tankless water heaters are still the best as compared to the typical tanks which are bulky, approximately 60 inch tall and 25 inch wide. Such a space may be so precious and hence with the tankless heater, which occupies approximately 20” by 28” by 10”, a lot of space will be saved.


In spite of all the praises that has been given to a tankless water heater, W.B. Aikens, a tankless resource manager at Rheem Manufacturing™, tankless water heater installation is still low in the United States. This can be attributed to a number of factors. According to, tankless water heaters are still inefficient uneconomical due to a number of reasons such as; high installation and upfront cost, they don’t heat water properly and; demands a lot of care as compared to the conventional heaters. Additionally, it is quite costly to get the efficient storage models of tankless heaters.