The choice of heating radiators in questions and answers

What radiators are considered the most anti-noise from high speed water?

In most cases, noise in the heating system is caused by the following reasons:

• The difference in the diameter of the pipes in the coolant supply system and at the entrance to the battery.
• Inconsistency of the pump performance with the nominal requirements of the heating system. In this case, it is advisable to install an anti-vibration coupling between the pump and the pipe, which dampens the resonance.
• The airy upper parts of the radiator - just install a Mayevsky tap on the battery and periodically bleed air.

Often radiators are just noise conductors, not their cause. Before changing an aluminum radiator, which is one of the most efficient types of batteries, it might be better to install a thermostat with an external thermostat on the battery input. Thus, the flow of coolant will be limited. And without fail, it is necessary to bring the diameters of the internal sections of all pipes in the heating system to a single indicator, otherwise the noise will continue, which radiator you do not install.

The most soundproof is considered a cast-iron radiator. However, it is practically uncontrollable, having the greatest thermal inertia.

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Which radiator is better in a private house bimetal or steel?

Both bimetallic and steel radiators use steel as the material in contact with the coolant, which means that under identical operating conditions, the degree of corrosion, and therefore durability, will be the same for them.

1. The working and test pressure of bimetallic radiators is higher, which means that they are more resistant to water hammer in the heating system, but this is not very relevant at home.

2. The heat transfer of bimetallic radiators in terms of a square centimeter is approximately 20% higher than that of steel panel radiators, that is, heating of the same area will require a bimetallic radiator of smaller dimensions than a steel panel.

3. At the same time, the cost of 1 kW of heat transfer from bimetallic radiators is 20-50% lower than that of steel panel ones. But it must be borne in mind that with an increase in length, the cost of a panel radiator increases less than its heat transfer.

That is, under comparable conditions of use, bimetallic radiators surpass steel radiators in all technical and operational indicators. Even their higher cost over time pays off pretty quickly with fuel economy when heating a room quickly.

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Which radiators will be warmer?

The efficiency and economy of heating and maintaining a comfortable room temperature depends on the heat transfer of radiators.

It, in turn, depends on the following factors:

• Coolant temperature.
• The material from which heating batteries are made.
• Correctly completed installation.
• Dimensions of the radiator itself.
• Type of connection - single pipe, double pipe.
• Type of strapping - diagonal, side.
• Efficient construction. For example, the number of convection fins in panel steel radiators.

The heat transfer to the metal is distributed as follows:

• Cast Iron - 52 W / m * K;
• Steel - 65 W / m * K;
• Aluminum - 230 W / m * K;
• Bimetal - 380 W / m * K.

The only advantages of cast iron as a material for heating radiators are its strength, low cost and high inertia. However, the last indicator can be attributed to disadvantages, since it is almost impossible to control the temperature in a room heated by cast-iron batteries, it is necessary to make adjustments, reducing the boiler power. And the apparent benefit from the fact that the radiator cools for a long time is leveled by a long heating period.

In your case, if bimetallic radiators are not enough for heating, you need to recalculate the heat consumption and install more powerful batteries or insert a heat pump into the heating system.

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If you replace all the cast-iron radiators with bimetal, will the gas consumption be less?

The fact is that bimetallic radiators produce heat transfer much more efficiently. Consequently, the coolant will cool faster and require more intense heating. In addition, cast-iron radiators have significant thermal inertia. And although this is extremely inconvenient for regulating the temperature in the room, but when the heating is turned off, they give off residual heat for a considerable time. On the other hand, their preheating requires more heat, the costs of which are only spent on heating the metal of the radiator.

Calculating the pros and cons is quite difficult. In addition, quality insulation of the room has a much greater impact on gas savings than replacing radiator batteries.

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Gas boiler pressure 1.5 At. - Install bimetal or aluminum radiators in a private house?

The main advantage of bimetallic radiators is the ability to withstand high pressures in the heating system, in addition, heat transfer is no less effective than that of aluminum radiators. By combining two different materials, more durable steel for internal pipes, and an external aluminum grill, significant radiator durability and increased resistance to water hammer are achieved.

In addition, a smooth inner surface prevents calcium overgrowth. For the manufacture of some high-end models, stainless steel is used. This gives additional advantages in strength and durability.

One of the main disadvantages of bimetallic radiators is their high cost. In fact, it is the highest among heating batteries of this class. Working pressure, can vary in the range from 16 to 35 atmospheres.

From all this it follows that it is advisable to install bimetallic radiators in systems with high pressure and low-quality coolant. In your case, there are no specified problems, so you need to look towards aluminum or steel panel radiators.

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Why is there a right-hand thread on the heating radiator, and a left-hand thread on the right, not like all radiators?

The first to do this was the eminent Italian company Ferolli. And they did it so that their radiators would not be faked. THOSE. If you purchased a supposedly real Italian radiator and the adapters are screwed in as it should, left on the left side, and right on the right, this means a fake.

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