CONTENT
- 1 Types of gas storage and instantaneous boilers for water heating
- 2 Important parameters of a storage gas water heater - what to look for
- 3 Features of installing a gas water heater
- 4 Gas flow or storage water heater - which is better? Compare advantages and disadvantages
- 5 The best models of gas storage water heaters for 2019 - prices and customer reviews
- 6 We draw conclusions. Which gas water heaters are best for a house or apartment?
Types of gas storage and instantaneous boilers for water heating
Like models that run on electricity, gas water heaters are divided into the following types:
- Cumulative - the water is heated to the required temperature in a special tank, which also serves as a storage facility. Subsequently, the owner can use the stored volume of hot liquid at any time.
- Flowing - the flow of water passes through the device, heating up and immediately getting to the owner through the mixer.
However, such a division is too extensive and superficial. We suggest you consider a more detailed classification of the heroes of our review.
Gas storage water heater with an open combustion chamber - an imaginary benefit
Budgetary in terms of cost, but costly in terms of additional work. For full functioning boiler an air supply is required, which is taken directly from the room. The whole complexity of the installation lies in the fact that you have to make a separate chimney for the removal of combustion products, as well as ventilation - this is an extra waste of money, time and effort.
It is certainly possible to buy a gas storage water heater, but only if you have ready-made communications or if you have a very limited budget.
Gas storage water heater with a closed combustion chamber - a safe and economical option
The next stage in the development of gas technology for heating water is storage models with a closed combustion chamber. Unlike their predecessors, they have no access to air inside the room, and exhaust gases are removed by a special pump. These characteristics have a positive effect on both the reliability and health of the residents. In fact, such a version can be safely considered a gas water heater without a chimney - you need to make a small hole in the wall and, during installation, combine the outlet in the water heater in the wall. The rest is the work of the fan.
Despite the fact that a coaxial flue gas outlet is necessary for full-fledged operation of water heaters with a closed combustion chamber, their use will be more profitable in all respects. And for owners of private houses, such a solution will be almost ideal.
Accumulative gas water heater with piezo ignition or electronic automation - will save tens of precious minutes
To start budget and obsolete devices, you must use matches or specialized lighters. More modern and progressive products have simplified the lives of their owners by the presence of a piezoelectric element or automatic electronic start-up and shutdown.
The motto of the first modification is the famous expression “Press the button - you will get the result!”. To turn on such a heater, you just need to make one press, a spark is created - and now a bright flame heats up the water so necessary for domestic needs.
But even this advantage seems insufficient to some owners. Especially for such people, there are products equipped with electronic automation. In this case, operation is even simpler and more convenient - to use you just open the hot water tap in the mixer. The system itself activates heating, and when the valve is closed, it extinguishes the flame.
NOTE!
Despite the convenience and practicality of automatic gas on / off, such designs also have a drawback - they are less stable than manually controlled devices. In this regard, water heaters with electronic automation require regular maintenance and checking the functionality of the device's elements.
A flow-through gas water heater is the "little sister" of a storage boiler
Unfortunately, it is not always possible to buy a storage-type gas water heater. In such a situation, the best choice would be to purchase a gas water heater. It also has a tank, but more compact. The heated liquid in this modification, passing through the container, goes directly to the owner. It will not work to store water in a flow column, but the service life and efficiency are at a very high level.
Important parameters of a storage gas water heater - what to look for
The first important point of our little research has been passed. But, asking the question "How to choose a gas water heater?", One cannot ignore such a section as technical and operational characteristics. Let's take a closer look at the most important parameters:
Power and performance
For almost any household appliance, the most important indicator that unlocks its full potential is the nominal power. As in the case of an electric water heater, the hero of our review has the value measured in kilowatts.
In practice, another important characteristic depends on power - performance. For a more visual confirmation of these words, we suggest that you familiarize yourself with the table of dependence of the two characteristics.
Power value, kW | Maximum volume of water heated up to 30 ºС, l / min. | Maximum volume of water heated up to 50 ºС, l / min. |
20 | 13 | 6 |
26 | 16 | 8 |
30 | 18 | 9 |
NOTE!
Performance also has its own important parameter, and its name is the size of the drive. After studying the instructions, you can notice a direct relationship between how many liters the heater can hold and how long the water will be heated to a certain temperature.
Materials used + type of tank lining
Today, there are two most common materials for the manufacture of the internal tank of the device - ordinary steel, covered with a layer of enamel, or "stainless steel". The first option is cheaper and more durable, but is subject to rapid destruction due to corrosion. The second variation has good durability, but it is more destroyed by pressure drops in the system, and also has a high cost.
For the inner coating of the container, either the previously mentioned enamel is used (models with glass porcelain are also found), or spraying from various corrosion-resistant metals (titanium, molybdenum). Each version has its own useful life, and depends primarily on the intensity of operation and heating temperature.
Combustion chamber type
As we said earlier, there are units with an open and a closed combustion chamber, and each has its own strengths and weaknesses. The wrong choice of the device will entail unnecessary costs, and may also completely not meet your goals and expectations. In the absence of complete confidence, it is better to give preference to the classic flow-through gas column - the risk will be minimal.
Ignition start method
If you have only a modest amount of money or you want to completely control the work process water heater - it is better to take a model in which the gas is ignited with matches, a lighter or piezoelectric element. If you want to save time and energy costs, then you should take a closer look at models with automatic start / stop.
Presence of a protective anode
To extend the life of the device and improve its resistance to corrosion, many manufacturers equip their "offspring" with a zinc or magnesium anode. During use, this element gradually "evaporates", dissolving and preventing damage to the integrity of the tank. It is better to check with the seller or on the manufacturer's website about the presence of such "bells and whistles".
Features of installing a gas water heater
As with any specific technique, gas boilers have their own nuances associated with the preparation and installation. To better navigate this issue, we suggest you watch a short video from which you can glean a lot of useful and necessary information:
Gas flow or storage water heater - which is better? Compare advantages and disadvantages
We understand that you can't wait to quickly study interesting representatives of the modern market and read reviews about gas storage water heaters. But before that, our editors want to talk about another important point in our review - about the advantages and disadvantages of storage and flow-through types of boiler. This knowledge will help you to better orient yourself in the future when choosing the optimal device in accordance with your needs.
Accumulative option | Flow variant | ||
Dignity | Flaws | Dignity | Flaws |
Low energy costs | Some modifications require additional ventilation | Long service life without replacement of major parts | Requires very high water and gas heads |
You can distribute water not only to the bath, but also to the kitchen | The cost of products is significantly higher than among electrical "colleagues" | Use all necessary resources sparingly | For full-fledged work, a chimney is required |
Do not need constant high power to heat water | Large dimensions and weight of products | Compact size and stylish design | High risk of fire hazard if regulations are not followed |
The best models of gas storage water heaters for 2019 - prices and customer reviews
As promised, we provide our readers with an independent rating of the best in the class as of 2019 - from budget models to De Luxe products.
Instantaneous water heater Electrolux NanoPlus 2.0
And our TOP budget gas water heater opens from the Swedish company Electrolux. This option is perfect for a small apartment, and the pleasant appearance and electronic display will perfectly complement the decor of any kitchen or bathroom.
power, kWt | Productivity, l / min. | Combustion chamber type | Heat exchanger material | Type of ignition |
20 | 10 | Open | Copper | Electric (automatic) |
Tehno.guru editorial estimate: 9,4 / 10
water heater Electrolux NanoPlus 2.0
Flowing gas boiler Zanussi Fonte Glass La Spezia
The next nominee is from Italy. The combination of price and quality in this product is almost perfect. In addition to its excellent performance, the Zanussi model boasts a striking appearance that is ideal for the kitchen.
power, kWt | Productivity, l / min. | Combustion chamber type | Heat exchanger material | Type of ignition |
18,5 | 10 | Open | Copper | Electric (automatic) |
Tehno.guru editorial estimate: 9,5 / 10
Zanussi Fonte Glass La Spezia
Instantaneous water heater Rinnai RW-14BF
The top three flowing models are closed by a representative from the Land of the Rising Sun. Both experts and buyers have known about the quality of their products for decades. In our case, the product is not only of high quality, but also profitable - its capacity is more than enough for a large family.
power, kWt | Productivity, l / min. | Combustion chamber type | Heat exchanger material | Type of ignition |
29,4 | 14 | Closed | Stainless steel | Electric (automatic) |
Tehno.guru editorial estimate: 9,7 / 10
water heater Rinnai RW-14BF
Gas storage water heater Ariston SGA 200 (liters)
Cumulative modifications are not so popular due to their size and features, however, several representatives still managed to get into our rating. Among them, one of the most confident positions is occupied by the Ariston SGA 200 gas storage water heater. The Italian brand is able to offer a colossal volume of heated water and responsible control over the gas level during operation.
power, kWt | Productivity, l / min. | Combustion chamber type | Heat exchanger material / tank lining | Type of ignition |
8,65 | 4 | open | Steel / enamel | Piezo ignition |
Tehno.guru editorial estimate: 9,6 / 10
Ariston SGA 200
Storage boiler Baxi SAG3 100 (liters)
Well, the "gold" of our TOP is confidently taken... again by the company from the Italian masters! Their 100-liter gas storage water heater SAG 3 will be a reliable assistant during the worst outages by the water supply services. An excellent offer for a large private house that can easily provide hot water for at least four people.
power, kWt | Productivity, l / min. | Combustion chamber type | Heat exchanger material / tank lining | Type of ignition |
4,5 | 9,7 | open | Stainless steel / enamel (titanium) | Piezo ignition |
Tehno.guru editorial estimate: 9,7 / 10
boiler Baxi SAG3
We draw conclusions. Which gas water heaters are best for a house or apartment?
So our research has come to an end. We hope that our review helped you dot the i's and choose the most profitable candidate for the purchase. Finally, let's say that for residents of apartments, flow-through models (the same Electrolux NanoPlus) will be the most profitable. But the owners of private houses, especially country houses, should take a closer look at the Ariston SGA 200 or products from Baxi - there is no better option.