Recommendations for the selection of water heater under the sink

Warm water in the faucet all the time is a prerequisite for modern comfortable living. The problem of the lack of warm water is not so difficult to solve, you just need to install a water heater of a certain displacement under the sink. A wide range of this type of equipment can be found on the market, and the only thing left for consumers is to decide on which particular water heater to choose.

Water heater under the sink can be extremely necessary in some cases.

1. In the case of the complete absence of hot water. In the premises without any problems it will be possible to install not only a water heater under the sink of a suitable size, but also to adapt the storage boiler to a room where there is a large volume for a bath.
2. For active use in the summer season. In many cities, it is in the summer that hot water is often turned off for the diagnosis, construction or repair of water networks. In order not to experience difficulties with the constant heating of water for various household needs, many ordinary people install equipment of this kind in their dwellings.
3. In case of an unexpected emergency shutdown supply of heated water when repairs can be carried out in the house or pipes are changed. Then you can choose a small device. An ordinary household water heater will be able to safely accommodate both under the sink and on the walls; it will not cause any hassle.

All water heaters under the sink can be divided into 2 main types in accordance with the principle of operation.

• Products with storage capacity - this is the most demanded equipment, which is characterized by a fairly economical power consumption and is very simple to operate. Storage boilers have compact dimensions, run on electrical energy.

Among the positive features of cumulative boilers are:

1. compactness;
2. lack of a scum;
3. quick water heating;
4. high power, which can increase the energy cost of the device.

• Devices with flow heater - less in demand because of higher power consumption. In addition, the cost of such products is much higher than the price of analogs with storage capacity of the cumulative type.

Flow-through units have a slightly different structure than cumulative products. Accumulative capacity in devices of this type is completely absent.

Most water heaters have parts such as:

1. protection case - metal or very durable plastic is necessary for its production, the body part will differ in compact parameters, perfectly suitable for placement under any sink;
2. TEN - in direct dependence on power, this device is equipped with one or several devices for heating water;
3. fluid flow sensors - they are distinguished by the presence of a heating element, which, if necessary, will prevent the heating element from burning if there is a shortage of water flow;
4. power relay - guarantees both on and off of the working heating element;
5. temperature control sensors - will not allow the unit to overheat.

Such mechanisms in accordance with the type of fuel that they consume can be of two types: electrical products and gas (columns).

Gas devices are used only in those houses that have a connection to the gas distribution pipeline. Before you buy an electric heater, you need to make sure that the condition of the wiring in your house allows you to use equipment with a capacity above 2 kW / hour.

• Gas the instantaneous water heater in its present form is a compact and rather aesthetic column that connects to the main line. It will perfectly fit into the kitchen space under the sink, since in the assortment you can find different colors. A significant drawback of the buyers of such devices is considered to stop the supply of heated water, it is only necessary to turn off the gas. Such products will save you during the next outages of hot water supply and can be an excellent solution for giving.
• Electric A flow device for heating water for a kitchen most often looks like a small box with a faucet coming out of it, from which water will flow to the desired degree of heating.Connects this device to the water supply. Flowing water, passing through the heating element, acquires heat and is actively used for domestic needs. This device is extremely convenient for arranging in an oversized kitchen, where there is no need for large volumes of hot water.

• These water heaters attract consumers with the construction of their thermos tank, which is able to store heated water for a long time. This kind of variation of the boiler is extremely economical, since the device is turned on only to bring the required volume of water to the desired temperature, and then immediately turns off. Gas units are not as compact as their counterparts of the flow type, but have a wide range of sizes and stylish decor to be located under the sink within the kitchen itself.
• A larger number of electric water heaters of accumulative type represent a full-fledged automatic type boiler, which will independently, according to a pre-programmed program, perform all basic functions: it will turn on itself, warm up the water to the required temperature, turn off itself. This device must be connected to the network at all times.

In order for the storage water heaters to fully meet the expectations of consumers, you need to immediately determine the average volume of warm water that you will need and install the boiler by choosing the most suitable tank from the existing range.

• Buck 5 or 10 liters. This is the most successful option for a family of one, maximum two people. For one person, this tank will even be plenty, but the supply will not hurt anyone - if the tank is used correctly and not turned off, there will be no energy overrun. As an option for a single consumer, you can also choose a flow type water heater under the bedside table, which can be called the most versatile solution even for a family with a large number of household members.
• Buck 15 liters. Perfectly suitable for apartments or houses inhabited by 3-4 people. But if one of these fours is a small child, then the device may not cope with the necessary volume of water.
• Buck 20 liters. This cumulative unit for washing is considered the most popular option for today: with the most gentle flow of fluid, it is able to provide the possibility of showering for two people.In the kitchen, he will be able to cope with any amount of consumption - though, if you do not pour water in vain, then it will be enough to wash dishes in a family that consists of four or even five people.
• Volumes of 25 or 30 liters You can also find it, but they are likely to disappoint you with low efficiency, for this reason for the kitchen of the house where a large family lives, it is better to opt for instantaneous water heaters that are not limited to the size of the tanks.

If you want to buy a heater for a long time to use it exclusively during repair work of hot water supply, then it does not make sense to spend money on an expensive model. In the summer, you can easily do with a flow-through boiler with a small capacity and a small volume of heated fluid.

If you want to install a boiler for the kitchen to use it all year round, or you need a summer model of a dishwashing dish, consider storage water heater models with a small volume - up to 15 liters.

Boiler power - almost the main characteristic. And it's not about the speed of heating and energy efficiency class. The importance of this issue lies in the fact that in many apartment buildings there is no possibility to install high-power units due to the presence of weak electrical wiring.

Independently you can connect devices with a capacity of up to 5 kW, then you will have to connect to the panel using a separate thick wire or use a three-phase network. The most low-capacity are cumulative boilers.

You can choose oversized models with power ranging from 0.8 kW.

Heaters for kitchen faucets, flow boilers will consume approximately 7 kW.

Since a water heater with an electric power supply can combine 2 rather dangerous things: water and electric current, when choosing, it is necessary to take into account everything that may concern safe use.A good boiler will be equipped with a residual current device (RCD), which is necessary in the event of a power outage. And also there must be protection against overheating of the liquid and shutdown by the automatic during “dry” switching on. And do not forget about grounding.

Choosing a water heater under the sink, you must consider the following factors:

1. the capacity of the unit, which can affect the amount of electricity consumed;
2. the thickness of the insulation material will determine the degree of cooling of the liquid;
3. type of specific device;
4. place of installation - in this case, it will be a place under the sink;
5. type of room for installation and housing - a summer house, a detached house or apartment;
6. volume of water use.

If you make a choice between heaters of the same volume of water, and at the same time one of them will differ in larger sizes, then the best option will be exactly the larger size. Since this model will have a thicker layer of thermal insulation, it will prevent the liquid from cooling down during its heating.

Most often, a compact type heater is installed under the kitchen sink, as hot water is essential for washing dirty dishes.

Flow heaters are not so difficult to install when compared with cumulative counterparts. Due to the absence of a tank and a rather small weight, the flow-through boiler can be installed with one's own hands on one of the walls of the washing cabinet.

In the case of the device there are usually special grooves for fastening the brackets.which, in turn, are fixed on the screws. On the case of the device there are also 2 connections. A fluid supply hose will be attached to the incoming pipe, and a hose that goes to the mixer will need to be attached to the outlet pipe.

All consumables that will be needed in order to fix the water heater just under the sink are included in the standard package.

The algorithm of installation of the unit in the conditions of the kitchen has no particular difficulties and is available for implementation without the participation of a specialist.

• It is necessary to fix the shut-off valves to the branch pipes of the cumulative tank included in the package.
• The check valve is fixed on the cool water pipe.It is screwed onto the valve of the crane, which will then be connected to the pipeline with a special adapter.
• The valve is fixed to the second hot pipe, it is also provided with a metal-plastic hose or trailer to fasten it to the pipe.
• Remove the mixer hoses.
• Connect the boiler by layering, providing for the presence of sealing, for which you can often apply tow.
• The wiring is laid from the shield, the socket is carefully equipped, and a water heater is connected to it.

A convenient option is considered to be a method when a large-capacity boiler is installed in a bathroom with a parallel output of supplying heated liquid to the sink and arranging a second wiring to the side of the kitchen room.

How to choose a water heater, see the video below.