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Heating appliances are designed to make life easier, to make living in the house comfortable. Why carry firewood and buy coal? It is much more convenient to connect a gas boiler to a common line. It can be mounted both wall-mounted and floor-mounted. But how to competently organize heating so that the coolant diverges evenly throughout the system? How can you save on fuel consumption? Gas boiler piping schemes will help you.
What does the harness include
How does the system usually work? It is based on a heating boiler, from which the coolant diverges through pipes and radiators. The piping is a wiring diagram that protects against overheating and guarantees efficient operation. It includes elements that are between the radiators and the boiler:
- Pipes, divided into two circuits of the supply and return lines.
- Shut-off valves, fittings.
- Expansion tank. Its volume is equal to 10% of the total amount of coolant in the system. As the water heats up, it expands and the pressure rises. So that the value does not exceed the critical level, excess liquid is taken into the membrane tank. After cooling, the water returns to the circuit again.
- Safety valve. It has the same function as the expansion tank. Discharges excess water into the sewer, preventing an explosion when the pressure rises.
- Air vent. Air locks interfere with the circulation of the coolant. The air vent automatically releases air from the system.
- Manometer – a device for measuring and controlling pressure.
- Circulation pump. Responsible for the forced movement of fluid through the pipes. The force of pressure, productivity depends on its power.
- Hydrogun – these are pipes that have combined into a common container. With a hydraulic gun, you can connect several circuits at the same time, avoiding their influence on each other.
- coarse filter. Fine mesh detail. Detains debris that comes with tap water (sand, rust).
Automation is installed to control the operation of a gas and electric boiler. This is a set of sensors for ionization, draft, ignition, temperature. Each of them controls the operation of a separate node.
The more complex the piping scheme, the more the efficiency of the boiler for a private house or apartment increases.
Strapping schemes
To understand how to make the connection correctly, pay attention to the type of boiler. The connection of a single-circuit and a double-circuit unit will be different. The simplest piping does not include a pump. The design uses only shut-off valves and a filter. This is a financially economical approach, but it does not provide an even distribution of the coolant.
With your own hands, it is easier to connect with polypropylene. Pipes made of this material are cheap and easy to install. In addition, plaque and scale do not accumulate on their walls. You can assemble a contour of any shape, the connections are made by the “American” drive. Paronite is used as gaskets.
One-pipe (simple) scheme
The instruction is suitable for single-circuit boilers “Bosch”, “Vailant”, “Ariston” and other brands. The design provides for one pipe, which departs from the body along the floor level. The batteries are connected in series, which reduces the heating efficiency (especially since the bundle does not turn on the pump).
Advantages of a natural circulation plant:
- Easy installation.
- Independence of heating from the availability of electricity (the pump requires a connection to the network).
- Minimum costs for materials and arrangement.
The picture below shows the connection already with a pump and forced circulation.
Two-pipe installation
How to tie a double-circuit boiler? It includes a supply line that goes up (riser) and turns under the ceiling. This is the main pipe, from which the fork diverges separately for each radiator. The discharge pipe is located at the floor line. Each battery is connected to it by a branch pipe. It is this organization that allows you to evenly distribute the coolant, which means that you can effectively heat the room.
In one-story houses, it is possible to equip a heating system with natural circulation. But in multi-storey buildings, only the option with a pump is used. What you need during installation:
- pump (usually comes with the boiler);
- distribution valve;
- membrane tank;
- shut-off valves;
- filters;
- check valve;
- adapters, tee.
Features of piping a floor boiler
Models such as Buderus, Baxi, Lemax are able to heat large areas. However, they require more space to install and connect. Here are some of the difficulties reported by users:
- Expensive accessories.
- Complex schemes are designed for specialists.
- Expensive service.
The strapping seems more complicated because the floor units do not include a safety group. Therefore, the user has to independently mount the circulation pump, expansion tank.
The picture below shows the diagrams. Conventionally, they are divided into two groups:
- With jumper. This is where the pump is installed. The temperature sensor is outside (picture top right).
- With three-way valve (picture bottom left).
What is a jumper for? In large circuits, the low temperature of the coolant on the return leads to the release of condensate. With the help of a jumper, water from a warm pipeline is mixed into the cold pipeline, then the temperature stabilizes. Video to help you install:
wall technology
To tie the Proterm Panther wall unit in a private house, you can use the following scheme:
When piping, ball valves and polymer pipes are used. The filter is equipped with taps on both sides. So you can turn off the water only at this point and clean the filter from blockage.
You can also use the simplest option, as we described above.
Want to reduce heat loss? Insulate hot water pipes (DHW) with polyethylene foam.
Creating a warm floor
If you want to include a “warm floor” in the heating system, then use a hydraulic arrow. Underfloor heating requires a low temperature connection. In the upper part of the hydraulic gun there is hot water for radiators, in the lower part there is cooler water for the floor.
The piping includes recirculation units: a bypass and a three-way valve. When the temperature drops, the valve will open to recirculate the water. More details shown in the picture:
Follow the rules and regulations during installation. Remember that the connection to the gas pipeline is carried out only by a specialized service. To make your choice easier, here is a helpful video: