Best Tankless Water Heaters For Residential Water Heating
Tankless water heaters, called on demand and instant hot water heaters are using tank-less design and on demand water heating technology.
The main advantage of on demand water heaters when compares to storage tank type models is hot water preparation, on demand, with a continuous hot water flow and endless supply. Water heating is energy efficient and combustion is with less green house gases production. Tankless units are consisted of the high percentage of recyclable replacement parts, which are durable and with decent warranty, allowing the user to have a worry-free service.
How to select the right water heater size?
The size of the tankless water heater you need depends on demand, the size of your home and family. If your home is large in size, where available tankless models on the market are too small to provide enough hot water, by using a multi-system set-up you can link several water heaters into one system and generate even more hot water flow to satisfy demand.
Majority of these tankless models are whole-house with higher "gallon per minute" flow rate capacity and they are supplying more than one application at a time, while smaller on demand units are mainly for point of use application.
There are also some manufacturers that offer economic residential and commercial grade combi boilers or heaters used for space and water heating at the same time.
Best 5 Tankless Water Heaters in North America
Find the list and reviews of the best residential tankless gas appliances that are EnergyStar qualified, based on the latest technology, engineering, available features and benefits it offers:
Noritz
Rinnai
Bosch
Paloma
Rheem
1. Noritz tankless water heaters are using the most superior, innovative technology which heats water with 83-94% thermal efficiency. All Noritz tankless models are designed to meet Energy Star requirements with low greenhouse gases production and energy usage.
These tank less units are also very safe and reliable due to the Noritz electronic system called Advanced Q Function. Dual flame burner thanks to the latest combustion technology, electronically controlled, produces hot water with low temperature fluctuation, maximizing the heat output and maintaining high efficiency.
Durable and high quality heat exchanger is commercial grade and Turbo Flow makes the unit to provide constant hot water temperature.
2. Rinnai is another Japanese high quality gas tankless heater manufacturer. Rinnai tankless water heaters are "green" with reduced energy usage, water consumption, NOx and CO2 emission.
In builder's magazine "The Most Popular Products" Rinnai have been voted #1 of all manufacturers.
3. Bosch tankless water heaters are German engineered gas appliances where two brand names are the most popular in North America: Aquastar brand used for gas tankless water heaters and Powerstar brand for electrical water heating and for whole house and point of use applications.
Bosch technology provides life expectancy of an average 20 years and great number of parts are replaceable. Bosch unit main advantages are high efficiency Ceramat Burner, real-time diagnostic for troubleshooting and failure codes for easy diagnostics and repair.
Bosch Aquastar 1600 is the most interesting unit due to its hydro-generated ignition, that makes the model to be energy independent. Bosch 1600 uses a small turbine wheel to create enough electricity for lighting the burner.
4. Paloma is among top five brands because of its performance and efficiency, available features and reliability.
Paloma models are using an Incomplete Combustion Avoidance Device (ICAD system) to monitor and optimize gas combustion. It is also used to prevent dangerous carbon monoxide production by turning the water heater off.
Overheat Limiter Wrap or fire protection sensor is used to provide protection against risk of fire, by surrounding the combustion chamber with a plastic film and detecting overheating around heat exchanger.
Flame Failure Protection and Anti-boil Protector are other two safety elements that are designed and implemented in Paloma heaters for the unit and your protection.
5. Rheem gas appliances are award winning water heating systems, and certified by GAMA, an independent testing agency for government standards and certifications. Rheem models are equipped with Rheem Exclusive Guardian SBT a sensing burner technology and the Exclusive Guardian OFW, overheat film wrap, both of them designed for safety and better performance.
The above models are per our opinion top 5 tankless water heaters in North America.
If you are looking for more information about tank less water heating and available models, look for the reviews about. where you will find detail reviews, how to select the best product and how to save on hot water.
Zeljko Mitrovic, the owner of hot-water-heaters-reviews.com is mechanical engineer, specialized in HVAC industry. His goal is to build the most comprehensive and useful guide about home and water heating. Numerous expert and consumer reviews, new technologies, great number of manufacturers, common and infrequent problems, DIY projects, how to and almost everything about troubleshooting.
The main advantage of on demand water heaters when compares to storage tank type models is hot water preparation, on demand, with a continuous hot water flow and endless supply. Water heating is energy efficient and combustion is with less green house gases production. Tankless units are consisted of the high percentage of recyclable replacement parts, which are durable and with decent warranty, allowing the user to have a worry-free service.
How to select the right water heater size?
The size of the tankless water heater you need depends on demand, the size of your home and family. If your home is large in size, where available tankless models on the market are too small to provide enough hot water, by using a multi-system set-up you can link several water heaters into one system and generate even more hot water flow to satisfy demand.
Majority of these tankless models are whole-house with higher "gallon per minute" flow rate capacity and they are supplying more than one application at a time, while smaller on demand units are mainly for point of use application.
There are also some manufacturers that offer economic residential and commercial grade combi boilers or heaters used for space and water heating at the same time.
Best 5 Tankless Water Heaters in North America
Find the list and reviews of the best residential tankless gas appliances that are EnergyStar qualified, based on the latest technology, engineering, available features and benefits it offers:
Noritz
Rinnai
Bosch
Paloma
Rheem
1. Noritz tankless water heaters are using the most superior, innovative technology which heats water with 83-94% thermal efficiency. All Noritz tankless models are designed to meet Energy Star requirements with low greenhouse gases production and energy usage.
These tank less units are also very safe and reliable due to the Noritz electronic system called Advanced Q Function. Dual flame burner thanks to the latest combustion technology, electronically controlled, produces hot water with low temperature fluctuation, maximizing the heat output and maintaining high efficiency.
Durable and high quality heat exchanger is commercial grade and Turbo Flow makes the unit to provide constant hot water temperature.
2. Rinnai is another Japanese high quality gas tankless heater manufacturer. Rinnai tankless water heaters are "green" with reduced energy usage, water consumption, NOx and CO2 emission.
In builder's magazine "The Most Popular Products" Rinnai have been voted #1 of all manufacturers.
3. Bosch tankless water heaters are German engineered gas appliances where two brand names are the most popular in North America: Aquastar brand used for gas tankless water heaters and Powerstar brand for electrical water heating and for whole house and point of use applications.
Bosch technology provides life expectancy of an average 20 years and great number of parts are replaceable. Bosch unit main advantages are high efficiency Ceramat Burner, real-time diagnostic for troubleshooting and failure codes for easy diagnostics and repair.
Bosch Aquastar 1600 is the most interesting unit due to its hydro-generated ignition, that makes the model to be energy independent. Bosch 1600 uses a small turbine wheel to create enough electricity for lighting the burner.
4. Paloma is among top five brands because of its performance and efficiency, available features and reliability.
Paloma models are using an Incomplete Combustion Avoidance Device (ICAD system) to monitor and optimize gas combustion. It is also used to prevent dangerous carbon monoxide production by turning the water heater off.
Overheat Limiter Wrap or fire protection sensor is used to provide protection against risk of fire, by surrounding the combustion chamber with a plastic film and detecting overheating around heat exchanger.
Flame Failure Protection and Anti-boil Protector are other two safety elements that are designed and implemented in Paloma heaters for the unit and your protection.
5. Rheem gas appliances are award winning water heating systems, and certified by GAMA, an independent testing agency for government standards and certifications. Rheem models are equipped with Rheem Exclusive Guardian SBT a sensing burner technology and the Exclusive Guardian OFW, overheat film wrap, both of them designed for safety and better performance.
The above models are per our opinion top 5 tankless water heaters in North America.
If you are looking for more information about tank less water heating and available models, look for the reviews about. where you will find detail reviews, how to select the best product and how to save on hot water.
Zeljko Mitrovic, the owner of hot-water-heaters-reviews.com is mechanical engineer, specialized in HVAC industry. His goal is to build the most comprehensive and useful guide about home and water heating. Numerous expert and consumer reviews, new technologies, great number of manufacturers, common and infrequent problems, DIY projects, how to and almost everything about troubleshooting.
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