Water heaters – to search for optimal solutions
Summary article:
• The main types of water heaters;
• A brief description of the flow and storage water heaters;
• The main types of storage (capacitive) water heaters;
• Electric storage (capacitive) water heaters;
• Combined storage water heaters;
• Gas storage water heaters;
• the main producers of storage (capacitive) water heaters;
The problem of hot water preparation is facing almost every owner, as a large cottage and small house in the village. Yes, and urban residents remember about this problem at least once a year during preventive summer trip hot water.
The range of water heaters in the USA market is very large – dozens of manufacturers, many different models. The purpose of this article – to help you understand a little of this equipment.
What are the water heaters.
There are several types of units, heating water for home use: electric, gas, solid, indirect heating of hot water from the coolant heating system (often called “water-water”), porcelain,
dishes. Also, water heaters are divided into instantaneous and cumulative. In the flow – heating water is as it moves past the heat transfer elements (Tankless electric heaters, PEX pipes, PEX heat exchangers).
Main benefits storage water heaters – comfort and convenience, because you can always stock up a lot of hot water beforehand. The main advantage of flow – compactness.
All water heaters can be divided into the following types:
1. gas flow (often referred to as “gas water heaters),
2. gas savings,
3. electric flow,
4. electric savings (with an integrated coil and without it),
5. electric savings from a furnace for solid fuels
6.kosvennogo heating.
In this article, will be discussed in the most popular – storage water heaters (boilers). For example, production of the Czech company DRAZICE very well noticeable difference between the electric water heaters, electric coil with built-in boilers and indirect heat.
Electric storage water heaters.
Using this type of water heaters can best when you ought to have enough hot water and electricity for your home or the number of dedicated power for your cottage does not allow instantaneous water heaters, the average power consumption ranging from 5 to 27 kW.
Accumulating electric water heaters – it is a simple and reliable devices, the main elements of which are the inner tank and the heating element – heater. Fuel tank capacity, most manufacturers usually ranges from 10 to 200 liters, the power PETN – from 1,2 to 2,5 kW. These two parameters determine when heating water in the tank. For the 10-15 liter boiler takes about 30-40 minutes. For 200 liters – 5-8 hours. In addition to the tank and PETN in the water heater usually consists of: magnesium anode (to prevent corrosion of the tank), insulation (conserves heat hot water), thermostat (allows you to set the desired temperature), the outer casing (gives the appearance of the boiler) the valve (for grazing overpressure).
Thus, electrical capacitance water heaters can be classified into the following basic parameters:
1. volume,
2. power of heater,
3. material insulation (polyurethane foam, polyurethane, mineral wool)
4. tip coating / material tank (steklofarfor, enamel, titanium enamel / stainless steel),
5. location (vertical, horizontal, under the sink, over the sink).
6. having or absence of built-in coil.
The last parameter indicates whether there is a possibility to connect it to the tank heating boilers.
Gas storage water heaters.
Now a few words about the storage gas water heaters. The volume of their sales in Russia are much lower than electric. This gas water heaters in some cases much more profitable electricity and their higher price is more than pay for itself in the operation, because cost of gas is several times less than the cost of electricity. Comfort provided by storage water heaters, gives them the opportunity, under certain conditions, to successfully compete with a gas stove.
It is important to note that many companies produce two types of capacitive gas water heaters:
1. with natural draft (with open combustion chamber),
2. with forced draft (with a sealed combustion chamber).
Water heaters with forced draft has the following advantages: does not require additional flow of air into the room to maintain the combustion process, reduce capital investment during the installation, because not need to make expensive traditional chimney, instead of which has been successfully used short and inexpensive coax. Their main negative – significantly higher cost compared to water heaters with open combustion chamber (approximately 1.5-fold).
The main elements of gas storage water heaters are:
1. tank, protected inside a special coating and fitted with a magnesium anode to prevent corrosion,
2. outer shell of steel, covered with a layer of paint,
3. insulation, which reduces heat loss,
4. hood, which prevents the backflow of exhaust gases,
5. atmospheric gas burner
6. control unit
7. protection system, shut off gas in case of abnormal operation.
I’ll try to list some of the brand capacitive water heaters are widely represented in the Russian market.
1) Power:
- ARISTON (Italy)
- AUSTRIA EMAIL (Austria)
- BAXI (Italy)
- DEMIR DOKUM (Turkey)
- DIMPLEX (Germany)
- DRAZICE (Czech Republic)
- ELECTROLUX (Sweden)
- EUROBOILER (Italy)
- GORENJE (Slovenia)
- IDROPI (Italy)
- ISEA (Italy)
- LIKE (Italy)
- STIEBEL ELTRON (Germany)
- TATRAMAT (Slovakia)
- THERMEX (Italy)
- THERMIA (Finland)
- WESTER (England)
2) Combination – electric heater coil plus:
- TAKAGI
- ARISTON (Italy)
- AUSTRIA EMAIL (Austria)
- DRAZICE (Czech Republic)
- EUROBOILER (Italy)
- GORENJE (Slovenia)
- IDROPI (Italy)
- TATRAMAT (Slovakia)
- WESTER (England)
Combined 3 – electric heater plus a fireplace for wood:
ARISTON (Italy)
4) Gas:
- AMERICAN WATER HEATERS (U.S.)
- TAKAGi Gas Tankless water heater
- ARISTON (Italy)
- VAILLANT (Germany) How to choose from a variety of existing water heater?
To select the volume of the water heater could be the average one-time charge one man with hot water.
• Bathrooms 150 – 180 l
• Shower 50 – 90 l
• Washbasin 6 – 17 l
• Kitchen sink 20 – 30 l
Given the number of family members and your individual needs in hot water with the help of this table you’ll be able to choose an indicative amount of required water heater.
Typically, the most popular models for use outside the city are boilers with capacity from 100 to 200 liters. In a city apartment, few people can afford to install the water heater so much space, so in this case, more often purchased boilers with capacity from 10 to 50 liters, which may well soften the problems arising in connection with the annual summer disconnecting the hot water.
Most firms produce boilers, both vertical and horizontal (the exception is the company Takagi, which produces models that can be positioned both vertically and horizontally). Which type you choose depends only on the convenience of placing the heater in your room. If you do not care, it is logical to buy a vertical, because usually with the equality of all the other parameters of its price below.
Unfortunately, in the amount of one article is impossible to describe all brands of water heaters, but I want to hope you have enough useful information that will help you to better navigate in the USA market products.
