Boilers are an essential component in efficiently heating our homes and keeping us warm throughout the winter. Of all the boiler types that are out there, the two-circuit boiler is the most adaptable and efficient. A two-circuit boiler, in contrast to conventional boilers, has two independent circuits, each with a unique function.
A two-circuit boiler has a very clever design. In order to heat radiators, underfloor heating, and other heat emitters in your house, the first circuit is in charge of heating the water that runs through the central heating system. This circuit makes sure that the temperature is constant and even in every room, resulting in a cozy atmosphere all around the house.
In a two-circuit boiler, the second circuit is used to heat the hot water used for taps, baths, and showers at home. This makes it possible to have hot water whenever you need it and eliminates the waiting for it to warm up, which adds convenience and enjoyment to daily chores. Two-circuit boilers provide a complete solution for hot water and space heating needs thanks to their dual functionality.
So, where are these multipurpose boilers typically utilized? For larger homes or properties with higher hot water demands, two-circuit boilers are perfect. They are also a well-liked option for homes that need to have hot water and heating at the same time. Furthermore, two-circuit boilers are frequently chosen by companies and commercial buildings to effectively meet the heating and hot water requirements of their spaces. Two-circuit boilers are now the preferred option for many wishing to improve their insulation and heating systems because of their adaptability and efficiency.
How a two-circuit water heater is organized?
Owners of two-circuit models can heat water more affordably than those of single-circuit models. Additionally, there are a few design variations between the units under consideration: an explosion valve, a storage tank, a heating element, a temperature sensor, and fittings for the hot and cold water supply drainage.
A two-circuit boiler has a unique component in the form of a copper coil, which is a spiral-shaped heat exchanger with outlets coming from the device’s body, in addition to the standard set of parts and assemblies. This copper circuit is heated by the coolant passing through the coil from the heating system.
Because of this, there are instances where the water in the boiler is prepared by both the use of TEN and the existence of a spiral heat exchanger. The water heater serves as a heat accumulator and is frequently installed in heating systems as a solid fuel boiler tie-in.
The equipment typically has a large working volume, and its design is calculated to supply the necessary amount of water during peak loads—that is, when all of the house’s taps are opened simultaneously. Long-term temperature stability in the medium is facilitated by thoughtful thermal insulation. The boiler heats the water on its own during the summer, when the heating is turned off.
What are the benefits of application
A two-circuit boiler has the following advantages when used in combination:
- reduction of energy costs. The main heat load here is created by the copper coil;
- Reducing the consumption of wood, gas, coal and other fuels by the heating boiler. After it burns out, the heating medium absorbs the energy stored by the water in the boiler, so the batteries will still produce heat for some time;
- equalization of the medium temperature in the heating system. The excess heat generated at the initial stage of combustion is removed by the water in the boiler;
- hot water supply will not be fully dependent on the power grid. In case of interruptions, the indirect heating circuit is activated.
By improving the hot water supply scheme’s energy efficiency, the equipment also helps to make the heating boiler’s operation more logical. Utilizing the combined capabilities of a water heater and a heat accumulator enables full utilization of engineering networks.
How to choose a two-circuit indirect heating boiler
The working volume of the storage tank should be the primary consideration when purchasing equipment. It should be considered that at least twenty liters of water must be set aside each day for each person who might reside in the house for a period of time. Therefore, a unit should have a minimum 80-liter capacity for a family of four.
The intended number of secondary circuits must be considered when designing the system. You will only need one internal coil in this scenario, especially if the boiler is intended to be used in conjunction with a heating boiler. In order to create an all-season economy, the water heater must be fed from both the boiler and solar panels, which requires at least two coils in the equipment.
An additional crucial factor in the selection process is the unit’s size. When installing, keep in mind that the heating device must be positioned above the wiring level and the radiators. As such, you should measure the height of the room where the boiler will eventually be installed before you begin looking through the range of profile stores.
A heating system with two distinct circuits—one for home heating and another for hot water production—is known as a two-circuit boiler. To keep your house warm during the winter, this setup uses a heating circuit to warm water that runs through radiators or underfloor heating. On the other hand, the hot water circuit gives you instantaneous hot water for taps, baths, and showers. Larger homes or buildings with high demand for both hot water and heating benefit greatly from the use of this kind of boiler. By letting you manage each circuit separately, it provides efficiency and guarantees that you always have hot water and warmth.
Demanded models of water heaters of two-circuit execution
This roomy version of the Ariston BCH 80L PROTECH+MG is built for an 80-liter working volume and has a power of 21.3 kW, which is average for this market. The modification can be used in conjunction with identical brand wall-mounted boilers. As stated in the manufacturer’s annotation, a family of four can have a continuous supply of hot water from this unit for longer than ten years.
The boiler body has a 56 cm diameter and a 78 cm height. The device heats water to a temperature of 70°C; the heating elements’ stated power is 3 kW. The coil area in this instance is limited to half a square meter. Equipment costs range from 27,000 to 30,000 rubles.
The ACV SLEW 240 two-circuit water heater is attractive because of its high-quality thermal insulation, which keeps the medium’s temperature from dropping by more than 1 °C over the course of three hours. There is a maximum 9°C drop in the temperature of the water that settles in the boiler during the day. The equipment’s remarkable performance is demonstrated by its disconnected heating element and cooled coil circuit.
Improvements such as the integrated thermostat, the body’s polymer coating, which prevents corrosion, and the lower placement of the cold and hot flow connections greatly increase the equipment’s operational capabilities. Typically, the package comes with a standard wall-fixation bracket.
The water heater has a 240-liter capacity and a maximum output temperature of 90°C. Such equipment has a starting price of 105,000 rubles.
A central heating system or a local heating system can be integrated with a practical GORENJE GBK 120 LN budget class model. In this case, a solar collector can function as a backup energy source for the summer. A heat exchanger with a 20 kW capacity serves a 120-liter capacity; the equipment may cost up to 25,000 rubles.
The Lamborghini ERA F 32 B 60 is a high-end gas combination model that houses both a boiler and a boiler within its body; the heating system is served by one circuit, while the hot water supply is handled by another. The apparatus is capable of operating as a flowing gas water heater in addition to a boiler.
The unit can generate up to 800 liters of hot water in a flow circuit and 60 liters in a storage mode per hour. The apparatus has a 32 kW power output and can heat water to 90°C. The dimensions of a rectangular body are 80x85x60 cm. Up to seven atmospheres of pressure are maintained in the hot water supply circuit. A multipurpose boiler will set you back 190,000 rubles.
Due to its efficiency and adaptability, a two-circuit boiler has become a popular choice for heating applications. A two-circuit boiler can heat water for both hot water supply and space heating at the same time, in contrast to conventional boilers that can only do one of these tasks. There are two independent circuits in this design: one for hot water supply and one for house heating. For many homes, its dual functionality makes it an affordable and space-saving solution.
A two-circuit boiler is designed so that each circuit uses its own heating source while operating independently. Water from the central heating system usually passes through a primary heat exchanger to warm up. This hot water is used in the first circuit to heat the house’s underfloor heating or radiators. A secondary heat exchanger receives part of the hot water from the second circuit and uses it to heat the domestic hot water for baths, showers, and faucets.
The versatility of a two-circuit boiler’s use is one of its main benefits. Larger households with high demand for both hot water and heating will benefit most from it. Even when the heating is running nonstop during the colder months, you won’t run out of hot water because both circuits are operating simultaneously. Additionally, because the system maximizes the use of the heating source, its efficiency contributes to a gradual decrease in energy bills.
A two-circuit boiler can be used in a number of environments, depending on where it is used. This kind of boiler can be customized to meet your heating and hot water needs, regardless of the size of your home—whether it’s a large family home or a tiny apartment. Because of its small size and design, it is perfect for modern homes where space is often at a premium. The two-circuit boiler is still a popular option for home insulation and heating as more homeowners search for cost-effective and practical heating solutions.
