The heating system in every house is formed from a heating medium, a heat source, radiators and piping. The general heating point or boiler houses are the main sources of heat in centralized highways. To heat country houses, the owners must first purchase a boiler, from which the pipeline system will be carried out. Batteries are purchased taking into account a large number of parameters. STI heating radiators in the domestic market are rapidly gaining popularity.
General characteristics of STI batteries
STI radiators are produced by an Italian manufacturer that has specialized in the manufacture of heating equipment for over 30 years. The products fully comply with quality requirements, standardization is carried out according to the standards of European countries. An additional advantage is the affordable cost. STI radiators have been imported to the Russian Federation since 2013. Today, products occupy about 56% of the total heating equipment market.
The Italian company produces radiators in bimetallic coating, aluminum and cast iron. Also, control and shut-off valves are supplied to the Russian market in large volumes.
The company is developing new heating equipment that will combine the advantages of all modifications. At the manufacturing stage, all products are subject to a three-stage quality control.
Advantages and disadvantages
Advantages of STI heating equipment:
- the manufacturer gives a 15-year warranty for its products upon purchase;
- the equipment fully complies with GOST No. 31311-2005;
- STI radiators are universal in their use, they can be installed in centralized and autonomous heating systems;
- each unit is completely sealed, which is confirmed by a multi-stage verification system;
- attractive design;
- high-quality and durable casting of batteries eliminates the likelihood of leakage, and also has a beneficial effect on the duration of the operating period;
- to increase resistance to mechanical damage, STI aluminum and cast iron radiators are powder coated in several layers;
- STI bimetallic heating radiators are equipped with thickened walls of steel channels, which allows them to withstand water shocks and increased pressure in the heating system;
- cast steel collectors are installed in bimetallic radiators, increasing the durability and strength of the structure.
When choosing radiators, it is important to give preference to models adapted to the technical parameters of the heating network.
Varieties of radiators Sti
STI batteries are made from bimetal, cast iron and aluminum. Radiators made of different materials have several modifications, so the consumer can choose a design that meets all the technical parameters of the heating system.
Aluminum radiators
The STI Thermo construction is coated with a high polymer compound with anti-corrosion components. All segments are resistant to salt, alkaline and acidic environments, and corrosion does not form on them.
Specifications for STI Thermo aluminum models:
- The height, width and depth of each section are 380/580 * 80/100 * 80/80 mm, respectively.
- Allowable indicators of working pressure 1.8 MPa. When choosing radiators, it is imperative to familiarize yourself with the indicator of the maximum pressure level of the coolant, especially when connecting the device to the central heating pipeline.
- The weight of each section ranges from 1.12 to 1.35 kg.
- The maximum allowable temperature is +110 degrees.
- The volume of each section varies in the range of 0.24-0.42 liters.
- Heat dissipation, depending on the model, reaches 120-204 watts.
The STI Grand Thermo model also deserves special attention. It has the following technical characteristics:
- Working pressure 1.8 MPa.
- Height * depth * width of the section - 580 * 100 * 80 mm, respectively.
- The maximum allowable operating temperature is +110 degrees.
- The weight of each section is 1.31 kg.
- The heat dissipation of each section is 205 watts.
- The volume of one section is 0.41 liters.
There are STI Classic and STI Grans models on sale with similar specifications.
Bimetallic batteries
Models made of bimetal deserve special attention, due to their increased strength and the possibility of using them in a centralized heating system. At increased pressure, the structure does not deform, the tightness is not broken.
The radiator frame is made of bimetal by a welded method, it is a tubular structure made of carbon steel. A steel collector is placed in a high-strength cast aluminum shell, which is characterized by increased heat transfer. Due to the absence of contact of the coolant with aluminum, the duration of the service life increases significantly.
The most popular model is the STI Grand. It has the following technical characteristics:
- Height * depth * width of each section is 570 * 90 * 80 mm, respectively.
- The working pressure of the coolant is 2.4 MPa.
- Each section weighs 1.8 kg.
- The maximum permissible temperature of the coolant is +110 degrees.
- The volume of each section is 0.2 liters.
- Heat transfer rates for each section are 195 watts.
Before purchasing bimetallic radiators, it is important to make sure that the structures can withstand pressure drops in centralized lines.
Cast iron radiators
The product line of cast iron radiators is represented by the NOVA-500 model. This device is adapted for domestic heating systems, it can also be integrated with autonomous heating systems. Cast iron batteries are installed in industrial, entertainment and public premises.
The design has a laconic appearance and small dimensions, it is distinguished by an acceptable cost. The heat transfer of cast iron radiators of the STI brand is 36% higher than that of analogues. The minimum service life is 50 years. Radiators are not afraid of corrosion and are undemanding to the composition of the coolant.
Technical characteristics of NOVA-500:
- Height * depth * width of each section 580 * 85 * 60 mm, respectively.
- Allowable working pressure 1.2 MPa.
- The weight of each section is 4.2 kg.
- The maximum allowable coolant temperature is +130 degrees.
- The volume of each section is 0.52 liters.
- Heat dissipation - 150 watts for each section.
The batteries consist of 7-10 sections, which are connected by heat-resistant sealing rings made of polymeric materials.
On the Internet, you can find mostly positive reviews about STI radiators. The Nova-500 model deserves the most attention. This is due to the fact that it is best optimized for domestic operating conditions and technical characteristics of heating networks. Cast iron products are considered a classic option for radiators, which have many advantages, including an aesthetic appearance.
