Diagram of heating two-story house, the choice of heating scheme, useful advice

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  • January 3rd 2015
Diagram of heating two-story house, the choice of heating scheme, useful advice

To feel comfortable in a two-story house in the winter, it is important to choose the right one scheme of heating a two-story house. The correct heating scheme can provide heat in the house and save fuel. The modern Internet allows you to get competent advice, using the site StroyDay.ru you can avoid a disaster in the winter.

What should I look for when installing a two-story house

The approximate scheme of equipment and distribution of pipelines of the heating system in a two-story apartment building with a technical basement:

1 - water-heating (or steam) boiler with automatic control and protection; 2 - heat exchanger (boiler); 3 - collector-distributor of coolant through heating pipelines; 4 - heated floor and bathroom; 5 - straight pipeline; 6 - return pipeline; 7- heating radiator with connection to a two-pipe heat network; 8 - finned convector pipe in a metal or wooden box

The most important is to select the correct capacity of the boiler. The boiler must be below the entire heating system, below the level of the radiators. After you have decided on the location of the boiler, look into the layout of the pipes of the heating circuit, mark the risers, the radiator with the radiator connection points, mark the water supply to the heating system.

Which pipes to use for heating

The heating system can be mounted from steel, polypropylene or metal-plastic pipes. Each of the above materials has its advantages and disadvantages.


Steel pipes have good thermal conductivity and strength, they are resistant to shock, have a small coefficient of heat.

But the big disadvantage of steel pipes is corrosion and in such pipes it is impossible to use antifreeze as the coolant. A mandatory condition for the installation of steel pipes is welding.


Polypropylene pipes have low weight, low thermal conductivity, do not rust, are a good dielectric.

Metal-plastic pipes can be bent by hand, fastened together with crimp fittings, perfect for a warm floor.

What radiators to buy for heating

Aluminum radiators can be used at pressures up to 18 atm. Metal is light, has high heat transfer.

The disadvantage is that without a coolant, the heatsink will consume corrosion.

Steel panel radiators - operate at a pressure of up to 8 atm. Also it is impossible to leave without coolant for a long time, otherwise it will eat rust.

Bimetal radiators - able to work with a pressure of up to 40 atm, have high heat transfer and strength.

Cast iron radiators are very heavy, have low heat transfer, cool slowly, serve for a long time and do not rust.

Expansion tank

Expansion tank is an obligatory attribute of the heating system. In the tank, there is a surplus of water, which is obtained by heating.

Circulation pump

The heating of a two-story house implies forced circulation of the heat carrier, and this can only be provided by a circulating pump.

The reasons for the slowdown of the coolant circulation during the heating of a two-story private house

The main reason for the poor efficiency of the heating system is the large number of bends and bends and the long length of direct heating sections of the house. It is necessary to pay attention to this when choosing heating schemes. The heating scheme can be single-pipe or two-pipe.

Single-pipe heating system

If a flow-through type is installed and the radiators are connected in series, this is a single-pipe connection scheme.

In this case, if the thermostat lowers the temperature on one radiator, degrees are automatically lowered throughout the section. The heat carrier is distributed vertically with a higher pressure than in two-pipe heating. Under such a scheme, the temperature on the second floor of the house is higher than at the first, as the coolant is fed up, and the cooled coolant is already down.

Two-pipe heating system

With this heating system, the heated coolant goes up one tube, gives heat to the first and second floor, and the return goes through the second pipe.

In this case, forced circulation is used, in this system there is a rapid and uniform warm-up. The greatest efficiency is provided by the supply of heat from above and the return flow is connected from below.

Helpful Tips

If the area of ​​the house is not large - one-pipe system is doing just fine.

The two-pipe system requires the need for a circulation pump, the power of which depends on the heating area and the diameter of the pipes of the system.

All connections must be protected from the flow of coolant.

Radiators are installed under the windows, use thermostats.

If you use antifreeze as a coolant, choose more powerful radiators than for a system with water.

If antifreeze is used as the coolant, use special gaskets and sealants.

Select the power of the boiler from the calculation that 1 W. capacity of the boiler will be able to heat 1 m2 of the area, while the house must be well insulated.

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