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Every home should have a considerable amount of hot water that is in disposal at all times. When you think about the cold days of winter and how you have to take an early morning shower, you realize how important hot water actually is. A tankless water heater is a device that will store water and heat it to a degree that you have set up beforehand. It would afterward stop working and keep the water at said degree long enough so you can use it. This makes them energy-efficient sources of hot water which are worth having in every home. The following is a compiled list of some of the most popular Bosch tankless water heater and a review of them that is specifically designated to help you in your choice. Here we are going to be listing the best Bosch tankless water heaters and mention their best features. Below the comparison table and Bosch tankless water heater reviews, we have also outlined some of their advantages and disadvantages.
- Bosch GL2.5 Ariston
- Capacity: 2.5 gallons
- Type: electric
- Dimensions: 14 x 14 x 10.25
- Other: 1500 watts, Glass-lined tank, under sink installation
- Bosch 330 PN LP
- Capacity: 3.3 gallons
- Type: propane
- Dimensions: 10.5 x 18.5 x 36.8
- Other: 75,000 BTUs max input, Piezo ignition system, 78%+ thermal efficiency, Vents with galvanized B vent
- Bosch Ariston GL6+S
- Capacity: 7 gallons
- Type: electric
- Dimensions: 14.5 x 17.5 x 17.5
- Other: 1500 watts, 12.5 amps, includes pressure relief valve
- Bosch 520 PN LP
- Capacity: 5.3 gallons
- Type: propane
- Dimensions: 8.7 x 16.7 x 25.8
- Other: 117,000 BTUs max input, Piezo ignition system, 78%+ thermal efficiency, Vents with galvanized B vent
- Bosch AE115
- Capacity: 2.6 gallons
- Type: electric
- Dimensions: 4.2 x 15.2 x 15.5
- Other: 90% energy efficiency rating, requires 150 amps
- Bosch AE-9.5
- Capacity: 1.5 gallons
- Type: electric
- Dimensions: 3 x 12.3 x 6.5
- Other: 99-percent efficient, 135 F Maximum Temperature Output, No Temperature & Pressure Relief T&P Valve Needed
Top 6 Bosch Tankelss Water Heaters Reviewed
Bosch Ariston GL6+S Tankless Water Heater
This particular model stores up to 7 gallons of hot water, which is ready to go, and would only draw about 125 AMPS. It must be hardwired into a 120V power source. Its’ compact size allow it get mounted on the wall, on the floor or it could easily be installed under a sink. It also comes with a pressure relief valve. However, unlike the GL6+ model, this one doesn’t come with a power cord.
It is a mini-tank water heater that would eliminate the waiting time for hot water. It could be installed independently or along with a larger source of hot water. It could be easily plugged into a standard outlet and it doesn’t require a special hard wire source of electricity.
It includes a glass-lined tank to ensure a prolonged life and a great insulation that would keep the water hot for a long period of time. The sizes of the water heater are 14.5 x 17.5 x 17.5 inches, making it a really compact device that is easily fit into thin spaces. It also comes with a 6-year warranty for the heat exchanger and a 1-year warranty for other parts.
Bosch GL2.5 Ariston Tankless Water Heater
The Bosch GL 2.5 Ariston water heater would store up to 2.5 gallons of water and it is mainly designed to ensure enough hot water for a single sink. It is a unit that saves space, easy to install and would draw electricity from a standard outlet. It could also go along with another, larger water-heating system or it could be installed independently. It includes a glass-linked tank that ensures long life.
The size of the water heater is 14 x 14 x 10 ¼ inches and it only weighs 16 pounds. It is a device of 120 volts and 1500 watts. The best place to install this water heater would be right underneath the sink because its’ original purpose is to ensure enough supply for a single sink.
It is a compact device and it comes in three different sizes, that are all space saving. The water heater is pleasant to look at on the outside and is additionally insulated on the inside to provide a higher temperature retaining opportunities thus ensuring higher efficiency. If you decide to use an extension cord you would have to make sure that it is rated for heavy duty appliances, to ensure maximum safety.
Bosch Therm 330PN-LP
The Bosch Therm 330PN-LP is perfectly suitable for indoor use It has a 78% thermal efficiency and a maximum input of 3.3 gallons per minute at 35 degrees Fahrenheit. The minimum flow rate at which it would activate is 0.5 gallons per minute.
It has a patented burner design and exclusive safety controls. It also comes with Piezo ignition system that uses a crystal spark to generate voltage, thus making it independent from electricity.
It is built to be durable and has a life expectancy of over 20 years. It is a non-condensing tankless heater that would surely contribute to saving some space. It is best known to be used in conditions in which electrical sources are not common or where electrical blackouts occur a lot.
The unit is rather compact but it could be able to supply two running water supplies constantly with hot water. The power would never be a problem due to the Piezo ignition system. This particular model has to be vented vertically through the roof. It is incredibly easy to utilize as all you have to do is push a button in order to light the pilot, afterward the process is fully automated.
Bosch 520 PN LP Therm
This unit has a maximum input of 117,00 BTU. It has a Piezo push-button ignition system that requires zero electricity. It also utilizes a modulating gas valve in order to provide constant temperature, regardless of the varying flow rates.
It could easily be the perfect tankless solution for rather small families and not so large households that would use two water applications simultaneously at most. It would provide an endless flow of hot water and it is incredibly money saving because it would only work when you need hot water, thus ensuring maximum energy-saving process.
It has a flow rate of 5.3 GPM. The size of the model is 8.7×16.7×25.8 inches and it only weighs about 35 pounds, making it a rather compact solution. The product has 3-15 years of warranty, depending on the designated application.
This model is particularly designated for heating potable water for domestic use. It could be used to ensure hot water flow in showers and sinks. If the temperatures drop below freezing point the water does not need to be drained due to the insulation.
Bosch AE115 PowerStar
The Bosch AE115 PowerStar water heater provides about 2.6 gallons of hot water per minute which would be more than enough for one water application at a time. However, this unit is not recommended for areas in which the annual groundwater temperature is less than 60 degrees Fahrenheit. It would require a minimum electrical service of about 150 AMPS.
It has an energy-efficient rating of about 90%. These units are meant to be mounted on the wall in order to save valuable floor space for other furniture. It is the perfect solution because it is rather powerful and could easily support one major water application. It has a size of 15 ½ x 15 ¼ x 4 ½ inches and only weighs 20 pounds which make it the perfect compact hot water solution.
The electrical specifications are 240/208 volts and 17/13 kilowatts. It comes with a 10-year warranty on the heat exchanger and 1-year warranty on all other parts. This item could easily solve the hot water problems in small households which don’t usually use more than one water application simultaneously.
Bosch AE-9.5 PowerStar
Some of the major features of the Bosch AE-9.5 PowerStar include a 99% efficiency rate as well as an easy to install the system. This unit would absolutely eliminate the long waits for hot water and it could be easily mounted on the wall in every direction you want.
It would operate on 220V at 84% of its full capacity and on only 208V at 75% capacity. The main reason for which it is so efficient is that it wouldn’t work unless you demand hot water.
The minimum activation flow rate is 3/4 gallons per minute. Some of the best applications for this device include Coffee Stations, Kitchen Sinks and Remote Lavatories.
The installation is fairly easy to do – all you have to do is basically tap it into the existing cold water system. It has a 5-year limited warranty and is also approved by the CSA. This model comes in four different under-sink sizes that the client can choose from. You could easily use it in your home, office or service station.
Some of the Advantages and Disadvantages of Bosch Tankless Water Heaters
As every other piece of technology, the Bosch water heaters have their strong and weak sides.
Advantages of Bosch Tankless Water Heaters
- One of the biggest advantages of these units is their size. They are incredibly space-saving due to their compact design. This is mainly due to the fact that they do not have a huge tank and wouldn’t take as much space as a regular water heater.
- These models are all incredibly energy efficient and you wouldn’t have to worry a lot about operation costs.
- Another major advantage is that since these units are all tankless you wouldn’t have to worry about any kinds of leaks that may cause flooding.
- They are also popular because of their durability as most of the Bosch tankless water heaters reviews clearly state.
- Nevertheless, there are certain disadvantages as well. For instance, they are rather expensive and this is one of the main reasons most homeowners tend to choose traditional water heaters. They just can’t fund the upfront cost.
- Another negative side of them also derives from their compact size. Tankless water heaters tend to come in rather small sizes in order to be easily installed and space-saving but this also means that they won’t be able to provide a steady flow of hot water all the time.
- Most of the devices are usually capable of producing hot water for one or two water applications that run simultaneously. This might become a serious problem if you do not have an additional source of water heating and you have a bigger household that has a greater demand for hot water. Therefore it is highly advisable that these units aren’t your primary source of hot water because you always run the risk of ending up with no hot water.
Common Problems with the Bosch Water Heaters
Some people would complain that the units wouldn’t turn off after less than 2 months after installation. This might cause the unit to overheat and start to smoke and sizzle. It wouldn’t turn off even with both in and out water valves being closed thus making people have to flip breakers in order to ensure safety. This translates to having no hot water supply.
Another major complaint is that the company would use every possible excuse in order not to fulfill the warranty contract. They would require people to hire a technician in order to submit a troubleshoot request on their website.
Some people complain that the customer support made them install copper tubing at their own expense or to move the settings to low. They would even go so far as to demand a 100$ deposit that would eventually get refunded once the defective unit gets returned and if it actually needs a warranty service. Some people tend to believe that this is no way for a reputable company to behave. Customers experiencing this kind of problem get the feeling that the units aren’t safe to use and could even be a fire hazard.
Another common complaint is that the units wouldn’t achieve the temperatures of hot water that are set in the descriptions. People comment that it is not supplying the promised amount of hot water and that they would have to make pauses while taking a shower in order to have hot water. Some of the issues like the overheating problem must be addressed carefully because after all this is an electrical device and any kind of malfunction might lead to some serious complication. It is highly advisable that you do not attend to repair the unit yourself and contact the manufacturer.
In conclusion, these particular kinds of Bosch tankless water heaters are particularly handy if you want to solve your hot water problems, provided you do not have a huge demand for water. They are not intended to supply the whole household with hot water and should be used along with another, larger kind of water heating system for optimal productivity and comfort. Nevertheless, it is an easy solution for small water applications like dishwashers, sinks and even showers.
These units that are mentioned in our Bosch tankless water heater reviews are specifically designated to ensure a constant flow of hot water up to the selected maximum storage so you shouldn’t expect them to fully solve your heating problems. They are energy and space saving which may allow you to utilize floor space better because they could easily be mounted on the wall or under the sink.
You can also compare Bosch tankless water heaters to those of other brands. Those that we would recommend checking out as well include Rheem, Ecosmart, Eccotemp, and Bradford tankless water heater brands.