Tankless water heater is a useful and convenient gadget for the households and businesses that come in all shapes and sizes.
Because of its size, it can easily be installed in small spaces like in closets or under the sink, but the amount of hot water will always depend on the size of the unit. For offices and business areas, it would be very useful since the demand for hot water is not the same for households. With large families that need a greater supply of hot water, a larger size would be needed.
How to choose the right size for your home
Before choosing a water heater, there are three things to consider. First is the maximum flow rate, then the temperature of the water and the model of your choice – electric, natural gas or propane. Below are the steps to be discussed to help you decide well on your choice of water heater.
Know how cold your present water temperature is
Knowing the average temperature of the water in your area will help you get the accurate size of the unit you will need; and you will need to calculate the temperature rise in water in the tankless model to maintain the maximum GPM (gallons per minute).
110 Fahrenheit is usually the average hot water temperature needed in a household. Thus, there should be a 60 degrees temperature rise if the cold water temperature is 50 degrees in a chosen unit.
Electric, Propane or Gas?
You should always consider the weather at the location especially when canvassing for a tankless unit. The lower the temperature of the water, the more powerful the water heater should be. If you live in a colder place, natural gas or propane is recommended. This option is more powerful and very efficient. While a warmer climate may only require you with an electric tankless heater which could get you by daily.
Electric tankless heaters may not work as well in colder places because of the risk of losing GPM especially when the demand for a higher rise in temperature. If a propane or gas unit is not an option for you, then you can check the British thermal units or BTU of your preferred model. With a higher BTU, more water can be heated or heated to a higher degree. However, some areas may not be gas or propane ready, so you have to make sure that it is applicable.
How much GPM do I need?
Exceeding the maximum gallon per minute (GPM) of your tankless heater may deplete the produced hot water. Make sure to evaluate when the hot water demand is at its peak. For example, at night when people take showers and wash dishes. You would need to assess the GPM for that specific duration of the day.
Shower 1.0 – 3.0
Kitchen Sink 2.0 – 4.0
Bathtub 2.0 – 3.0
Washing Machine 1.8 – 3.5
The above figures are examples of the water’s GPM in different parts of the house. This list may help you to gauge the max GPM of your tankless water heater and may then help you find the right kind for your home.
Top Brands of Tankless Water Heaters
There are a lot of brands in the market nowadays. Each brand possesses different features and offer consumers varied benefits. Others focus more on power and being efficient while others are more eco-friendly. As a consumer, you should know what you need and what will satisfy you and your budget.
Here is a list of the 7 Best Electric Tankless Water Heaters for 2015
This is a German brand and has been in the market for over a century. Bosch already has a name in the industry providing consumer goods, industrial and automotive technology. Their products are already proven and tested as time passed.
Their products which are both very efficient and environment friendly, use thermotechnology. A Bosch Tankless Water Heater helps you save money by 50% on utility bills and a guaranteed 30% federal tax credit. You can find a sizing calculator in their website to help you choose the right water heater for you.
Eccotemp water heaters offer electric powered, propane powered and “D” cell battery powered. This company is already established and is specifically good in tankless water heaters.
Their range of products includes outdoor water heaters that can be used after swimming or in car washing. They also have portable ones if you are always on the go. Their price range is affordable but still offers very good quality.
For over 50 years in the market, Ecosmart is an expert in the water heating industry. They emphasize on efficiency and value green technology for their consumers. They have produced some of the best tankless water heaters. Compared to other brands, Ecosmart is 99.8% efficient and takes care of the environment by producing less damaging exhausts into the air.
They have a variety of water heaters suited for your home, business, as well as for spas and pools, marine purposes, farming and even RV’s. Their unique technology helps you save more money than most water heaters at up to 60% off.
Noritz is the very first company to create a tankless water heater back in 1981. This company has been providing water heating products in the U.S and Canada for more than half a century. They have three lines which specifically caters what the consumer needs. These are the ecoTOUGH line, the proTOUGH line and the ValueSolutions line. These made them stand out in the market. The ecoTOUGH line provides high efficiency, the proTOUGH line caters durability and the ValueSolutions is cost effective.
This variety helps the consumer choose what suits his/her best concerns and preference. Noritz’s water heaters run on an “on demand” rule which means hot water is only turned on when needed thus saving 50% off of your bill.
Rinnai originally produced cooking stoves and was founded in the 1920’s. In the later years in 1964, they began producing water heaters. Their technology makes their heaters very efficient and the unit uses 40% less energy. Rinnai’s products are durable and can last for up to 20 years but with the right maintenance of course. This asset is a plus among other water heater brands.
Your convenience is their priority that is why their products can be installed indoors or outdoors. Worrying about broken parts of the heater? You don’t have to because they can be easily replaceable.
Stiebel Eltron was founded in Germany. It recently celebrated 90 years of excellence in the industry. Their main focus is minimizing energy while still being able to give safe and operative results. They have various products like space heating, hand dryers and circulators but water heaters are their most popular product.
They have three kinds of heaters: single-use, multiple-use and whole house heaters. Just recently, they created a mini-tank called the SHC 2.5. This product puts hot water where you need it the most like under the sink. This is a water and energy saver compared to regular tankless heaters.
Takaji takes pride in being the first to make a tankless heater with a 95% thermal efficiency rating. Making heaters since 1952, Takaji is also the first to offer a direct vent convertible model and the first to apply an air-fuel ratio rod – a safety device to reduce global warming. Just like other brands, they also prioritize being eco-friendly.
This brand offers a large range of water heaters in the market which already is packed with diversity and most importantly, quality. Their website may help you choose the right size of heater fit for your home and climate. Another plus for consumers is the warranty they give, extending from 10 years to 15 years. Reviews for this product are highly positive that is why you would never go wrong in choosing this brand.