Gas and electric water heater
Gas water heaters (or geysers) is connected to the main water supply and pipeline. Due to the combustion gas heat exchanger is heated, and the water passing through the pipes gets warm. Electric water heaters work from the mains (single-phase 220V or three — phase 380 V).
After the decision on the purchase of a water heater is accepted, the question about what type to choose, electric or gas, are usually resolved fairly quickly. If the house has gas and allow its structural features, so it is better to buy gas, as this kind of cheaper electric devices. If gas is excluded due to the lack of gas, should give preference to the electric water heater.
Cumulative and instantaneous water heater
If you have decided on a power source device for heating water, you can move on to choosing between tankless or storage water heater. Its advantages and disadvantages those and others, here you need to choose based on specific features of your apartment or house in the country, as well as your individual needs.
The water heater is also called the boiler. The water is heated to a certain temperature (usually 60-70°), then the device supports it automatically. If the heated water is used, water is added new. Then it heated up again. Since the heating water in the boilers takes place quite smoothly, power consumption is relatively low.
The boilers consist of a vessel, which can have a volume of from 30 to 500 L.
Install a water heater in any home or apartment, it is not too demanding of wiring. In addition, one of its main advantages is that it can provide hot water from the whole apartment. To conduct water from the boiler can be on the kitchen, the bathroom and the other rooms where she might need.
The main drawback of storage water heaters is their size. If your apartment bathroom is relatively small, to determine the volume of the boiler should be based on its size. For example, in a standard bathroom Khrushchev device with a volume of 100 liters will not fit. Even if it can be installed, deployed with an overall boiler will be problematic.
So choosing a storage type water heater, you first need to determine its volume. It depends on different factors:
- the availability of space in your apartment or house;
- the number of members of your family and their love for the dish-washing or water treatment.
One person at the shower takes 30-40 litres of hot water. Therefore, even for a small family, which consists of 3 people, the most convenient will be quite a large boiler – a volume of 100 l. These giants are heated for a long time – at least 3 hours. If the family you have not got, you can give preference to small boiler For heating 40-50 L. he will only need 30 minutes, hot water will be enough for you to shower. In addition, the energy he spends much less.
Also note that about 1 time in 2 years will need to invite the master to have it cleaned an additional heating element (heater) from the scale, otherwise the device storage type will last a long time.
Water heaters of the type for its operation requires much more electricity. Besides, they are picky about the condition of the wiring in the building. Before you opt for a tankless version, it is advisable to consult a specialist, you can withstand the wiring in your house consumer.
Water temperature in flow-through devices is enhanced by passage through the heat exchanger. It depends on the power and pressure of the water heater.
Often enough, old wiring can not withstand the strong current that picks up a water heater. Its insulation melted and caused by a short circuit. To solve this problem can help to install a separate cable directly from the shield, but this is only possible after prior consultation with the electrician and in his performance. Another disadvantage of the flow heater is the fact that it can provide water to only one room - or kitchen, or bathroom, you will have to choose.
Of course, running models also have their benefits;
- unlimited amount of water;
- instant hot water;
- because there is no tank they take up little space;
usually these devices do not require regular cleaning and periodic maintenance.