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Bypass in a home heating system, what is it, a detailed description of a bypass device
Do you want to save money on heating your home and live in comfortable conditions, and not freeze from the cold or languish from the heat in the room, or quickly, without installing new expensive equipment, optimize and improve the entire heating system? Read our article and you will learn how to do it with the help of a very simple and cheap, but very functional part of the bypass heating system.
Content
What is a bypass: types
Bypass (translated from English bypass), in the broadest sense, is a pipeline located parallel to or in the bypass of a certain section of the pipeline of the main system. Most often, by construction standards, the concept of bypass applies specifically to heating system and gas and water supply of both private and multi-storey buildings and in common parlance is called a jumper.
Depending on the installation location of the bypass in the heating or water supply system, the following types can be distinguished:
- bypass of water meters, which allows, by shutting off the water supply to the apartment, without turning off the entire water supply system, replace the meter,
- heated towel rail bypass, performing the same function of replacing or eliminating leakage of the heated towel rail, without shutting down the main hot water system.
- radiator bypass - as well as in the case of installation on a heated towel rail or water meters, it facilitates the replacement or repair (elimination of blockages or airing) of heating radiators without shutting down the entire heating system of the house, and also regulates the flow of heat carrier to each specific radiator.
- the bypass in the heating system controls the flow of coolant to the radiators in the water heating system of both the house and the apartment, ensuring uninterrupted and economical operation of the system.
Let us consider in more detail how exactly this happens.
What is heating bypass?
If a room, albeit qualitatively and expensively decorated and furnished cold or terribly hot is not working properly or the heating system is not functioning properly, then there can be no talk of any comfort. Such extremes of the heating system are quite easily and productively smoothed out with the help of a long-invented device: bypass.
In heating, bypass is most often an obligatory structural element of the heating system, small in size, a jumper made of a piece of pipe, the transverse diameter of which is less than the diameter of the pipe of the main pipeline. Installation of this jumper, bypass, is carried out between the direct and reverse wiring of a standard heating radiator.
Why do you need a bypass in the heating system:
to return excess coolant (water) from the main riser, when changing its volume (using a manual or automatic controller).
- to increase the speed of the process of emptying and / or filling the heating system,
- to create the ability to use, at choice, natural or forced circulation of the coolant in the heating system of a private house:
- which improves the operation of heating systems of the older generation that do not have circulation pumps, working only on the principle of natural circulation: thanks to the installation of a bypass with a circulation pump;
- which is very important when there is a power outage (circulation pumps are energy-dependent, when they are turned off they create an obstacle to the flow of water. But, with the help of a bypass and a ball valve system, the heating system switches to self-flow mode of the natural coolant circulation).
- which reduces the amount of energy in the heating system, up to 40% and, as a result of this, the energy costs of heating it.
Bypass device
In the heating system, several variations of the bypass device are possible:
- to the heating radiator both in a multi-storey building with a central heating system and in a single-pipe heating system of a private house: the bypass consists of a jumper and 2 ball valves
- per line in the heating system of a private house: the bypass consists of 2 taps, a filter, a pump (this is the configuration the bypass is often called the pump unit) and an additional ball valve on the main line.
- to the line in the heating system: the bypass consists of a filter, a pump, and for automatic temperature control in the room, instead of the bypass ball valves, thermostats are installed to ensure that the supply and movement of the coolant to the pump are turned off when the set room temperature is reached and the supply of coolant to the pump is resumed , in the event of a decrease in air temperature in the room.
In general, the bypass circuit is simple and understandable and, if desired, can be assembled independently, although it is still more correct to buy a ready-made certified bypass (especially when it comes to the pump unit) from a trusted manufacturer.
Bypass Installation
When installing a bypass in a heating system, there are certain rules:
1. The diameter of the bypass pipe should be less than the diameter of the main pipes (supply and return),
2. When installed on heating radiators, the bypass is installed as close as possible to the heating radiator and as far as possible from the main riser of the heating system, this
3. In the case of installing a bypass in the line of the heating system of a private house, it should be installed near the heating boiler, but so that the circulation pump does not overheat.
Bypass installation options:
- to a single-pipe heating system: bypass to the heating radiator.
- on the line of the mains pump: pump unit.
