Hot Water, How to make with your own hands?
To provide a hot water supply in a private house, it is necessary to install a hot water supply system equipped with an indirect or layer-by-layer heating boiler with a volume of at least one hundred liters. This system provides the comfort of using heated water, economical fluid consumption, and less sewage. The only drawback of such a system is the high price of the device.
If the budget is limited or you only live in the country for one season, the best option is the DHW system of a private house with a flow-through boiler.
This system is suitable for use in private homes where the heating source and taps are not too far apart. A maximum of three water taps can be connected to one instantaneous water heater.
Such a hot water system is relatively inexpensive, while the disadvantages of its use are not particularly pronounced.
A double-circuit gas boiler or gas water heater will not take up much space. All the equipment necessary for the system to function is contained in the instrument case. The arrangement of the DHW system of a private house from a boiler, the power of which is no more than 30 kW, does not require a separate room.
The hot water supply system of a private house with a gas water heater or a double-circuit boiler is characterized by a stable mode of water supply if a buffer tank is installed in the circuit between the heater and the points of water intake in the form of a conventional storage electric water heater. It is recommended to install this device near the sampling points, which are remote from the gas apparatus.
In the circuit with a buffer tank, hot water first enters the tank of the electric heater. This ensures that the tank is always filled with hot water. The electric heater in the tank is able to compensate for heat losses and maintain the required hot water temperature during the period of time when the water is not used. Thus, an electric water heater of a small volume (30 liters) is enough for you to comfortably use the domestic hot water system.
The DHW system of a private house with a flow-through water heater, equipped with a layer-by-layer heating built-in or external boiler, will cost consumers an order of magnitude more expensive. But this equipment has undoubted advantages, in particular, it does not require energy consumption to maintain heat, besides, using this device is as comfortable as an indirect heating boiler.
In a private house with an extensive hot water supply network, it is advisable to use a circuit with a storage boiler and water circulation. Only this scheme is able to provide maximum comfort and economical use of hot water. However, it should be borne in mind that this option requires high costs for its installation.
Experts recommend purchasing boilers that come with a boiler. Only in this case, the parameters of the boiler and the boiler will exactly match each other, while the main part of the additional equipment is located in the boiler body.
If heating in a private house is provided by a solid fuel boiler, in this case it is advisable to install a buffer tank – a heat accumulator, to which a hot water supply system with water circulation is connected.
In some cases, to provide hot water supply to a private house from a solid fuel boiler, an indirect heating boiler is connected, which is additionally equipped with an electric heater.
Often, only electricity is used to heat water in a private house where a solid fuel boiler is installed. To provide hot water supply in a private house, a storage electric water heater is installed near the water points. Hot water circulation system is not provided in this case. It is best to place a separate storage boiler near the remote taps. And then electricity for heating water will be consumed more economically.
When water is heated to a temperature exceeding +54 ° C, the water begins to release hardness salts. To avoid the formation of limescale, it is recommended to heat the water to a temperature below the specified one.
Instantaneous water heaters are especially prone to lime scale formation. If the water has a high salt content (more than 140 mg CaCO3 in 1 liter), then instantaneous water heaters should not be used. Even minor scale deposits can clog the channels in the flow heater, as a result of which the water flow can be interrupted.
The water supply in the instantaneous water heater is carried out by means of an antiscale filter that reduces the level of water hardness. The filter is equipped with a replaceable cartridge that must be replaced periodically.
To heat water with an increased level of hardness in a private house, it is best to choose a storage hot water supply system with an indirect heating accumulator. Scale deposits on the boiler heating element will not impede the flow of water but will reduce the boiler’s performance.
Do not forget that prolonged heating of water to a temperature of less than +60 ° C can provoke the appearance of Legionella bacteria, dangerous to humans, in the storage tank. Thermal disinfection of the hot water supply system of a private house should be regularly carried out and the temperature regime for heating water should be increased for a certain time to + 70 ° C.
The creation of any engineering system, be it the hot water supply of a private house or a heating system, cannot do without pipes, fittings, and other consumables. An important aspect when choosing these sanitary products is their quality. Only a trusted supplier with an excellent reputation will be able to provide you with the high-quality materials necessary for the durable and trouble-free operation of any engineering system.
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