The correct heating system is essential for maintaining a warm and comfortable home. An indirect gas boiler is one choice that many homeowners find appealing. However, what is a gas indirect boiler and how does it operate exactly? The ins and outs of gas indirect boilers will be covered in this article, along with their advantages, workings, and suitability for your house.
Let’s start by explaining what a gas indirect boiler is. Indirect boilers function by heating water in a separate tank, as opposed to conventional boilers, which heat water directly for use in heating systems or hot water taps. The home’s heating system then uses pipes or radiators to distribute this heated water throughout it. The main distinction is that the heating system’s water never comes into direct contact with the gas flame.
The efficiency of gas indirect boilers is one of their main benefits. These boilers can function more efficiently than conventional models because they heat water in a separate tank, which could result in energy savings and cheaper utility bills. Furthermore, there is less chance of corrosion or scale buildup because the water used in the heating system is not the same water heated by the gas flame, which can increase the boiler’s lifespan.
The adaptability of gas indirect boilers is an additional advantage. They can be installed anywhere in the house, including utility rooms, basements, and even closets, as they don’t need a chimney or flue for ventilation. Their adaptability renders them a compelling choice for homeowners who have space constraints or particular installation needs.
In addition, gas indirect boilers provide dependable and steady heating performance. They can provide a consistent supply of hot water for domestic use and heating because they heat the water in a separate tank, which ensures comfort and convenience throughout the house even during times of high demand.
In summary, gas indirect boilers are a sensible and effective choice for homeowners wishing to modernize their heating infrastructure. Their energy efficiency, adaptability, and dependable performance make them an attractive option for maintaining a warm and cozy home all year round. Gas indirect boilers are a viable option to consider when building a new home or upgrading your heating system.
- Boiler indirect heating or gas column: what to choose?
- 12 best boilers
- Best gas boilers
- 3 American Water Heater PROLine
- 2 Baxi SAG3 80
- Indirect gas boilers – advantages and disadvantages, connection options
- Device and principle of operation
- Main technical features
- Boiler connection to a gas boiler
- Pros and cons of indirect gas boilers
- How to calculate and choose the right model – tips
- Video on the topic
- Choosing equipment for the boiler room: gas and electric boiler, indirect heating boiler
- NEW! Boilers indirect heating BAXI UBC/UBC DC
- Rispa 2025: Overview of indirect heating boilers – new products and model range
Boiler indirect heating or gas column: what to choose?
Both varieties of this equipment come with a variety of features, both positive and negative. We sincerely hope that our article will assist you in making a decision if you are unsure whether an indirect boiler or a gas column is the better option. Thus, one of the most popular methods for DHW autonomy is the gas column. The cold tap water is heated "on the fly" by this flow-through water heater. Because of this, heating occurs almost instantly, and the amount of hot water that is supplied is determined by the column’s capacity.
Gas water heaters are small and heat water quickly. Nevertheless, it necessitates that the residence be linked to a centralized gas and, ideally, water supply. Such equipment’s effectiveness is largely dependent on the cold water supply’s head. A chimney is also necessary for the installation of a gas heater, or in the case of turbo models, a coaxial chimney. This may occasionally cause the user to experience certain annoyances.
Regarding the indirect boiler, it operates on the accumulation principle rather than the flow-through method, storing hot water heated by a separate heating boiler in its tank. As a result, it is best to only use the boiler + boiler technique in tandem with one another. A built-in electric heating element in certain models of these water heaters keeps the water at a high temperature. This boiler’s bulkiness is both an advantage and a disadvantage because it can hold a lot of liquid but also takes up a lot of space when placed.
So, which piece of equipment will be more profitable—an indirect boiler or a gas column? The column’s sole purpose is to heat domestic hot water (DHW) in relatively small volumes. The house’s gas and cold water pressures must both be steady and good at the same time. Since it lacks a tank, you won’t have hot water in the event that the cold water supply cuts off. Apartments or homes with central heating and a reliable gas and water supply are ideal for gas water heaters.
As a result of receiving water that has already been heated by the boiler and requiring less energy to maintain its temperature, the indirect boiler is far more energy-efficient than a gas heater. The boiler can function entirely independently (using coal, wood, or pellets) or with electricity, negating the need for a gas pipeline to heat water. It also has a tank that can hold hundreds of liters of liquid, which is perfect for times when more DHW consumption is needed. Its drawbacks include its large size and the extremely high cost of an indirect boiler and heating boiler set (which, however, soon pays off).
12 best boilers
Features included in the rating
A boiler, also known as a water heater, is a device that is connected to the water supply system and continuously heats water. In terms of structure, it is a sizable container with a heat source that can be arranged in different ways. Boilers are also known as storage-type water heaters in other contexts. These kinds of devices work best in locations where the hot water supply line isn’t connected.
Any buyer can find combined or indirect heating boilers, as well as gas or electric water heaters, in specialty stores. It is challenging to determine which of them, when applied in homes and apartments, is the most well-liked and preferred. Like in many other situations, this one also hinges on the tasks that the user places on the item.
A ranking of the top boilers has been created to make your selection process simpler. It is based on user reviews, a comparison of the features of numerous models, and popularity among consumers.
Best gas boilers
Large buildings and cottages are the primary locations for the installation and activation of these heaters because of their capacity to heat large volumes of water quickly and with little fuel consumption. Even in this scenario, natural gas can always be substituted with an alternative fuel due to the current low price of the fuel.
Built-in regulators regulate the heater’s power, preventing emergencies from happening. One of the drawbacks is that installing a boiler of this kind needs approval from the relevant state authorities, who also oversee the installation’s accuracy and the necessity of an additional exhaust hood to remove waste gases.
3 American Water Heater PROLine
The mean cost is 37,309 rubles.
2018: 4.6 out of 5.
The American Water Heater PROLine G-61-50T40-3NV storage water heater is one of the best gas-fired boilers available, despite its comparatively high price. With a capacity of 190 liters, the water tank can be heated to a temperature of 70 degrees Celsius with a maximum heat output of 11.7 kW. The tank’s walls are coated with glass-ceramic to stop corrosion.
The primary drawback and inconvenience during installation are related to the indication of certain parameters in the units of measurement recognized in this country, as the USA is the boiler’s exporter. The American Water Heater needs routine maintenance on a regular basis, just like any other gas heater. However, as a number of customer reviews attest, it is among the most dependable boilers in its class.
2 Baxi SAG3 80
The mean cost is 21,258 rubles.
2018: 4.6 out of 5.
The Baxi SAG3 80, a small wall-mounted boiler that is perfect for installation in both a large private home and a small apartment, is ranked an honorable second in the rating. The heater tank has an 80-liter capacity, which is plenty for moderate water use. The enamel covering the tank is resistant to corrosion and increases the tank’s operational capacity.
A vent valve that releases excess pressure from the tank is built into the design of the gas burner, which also has a gas control system attached. There is mechanical control over the temperature. The Baxi boiler has smaller dimensions than floor models, yet it weighs an amazing 34 kg. That being said, it remains the best wall-mounted gas heater on the market when measured against its rivals.
Examine and rank the top boilers for homes. Best gas, electric, combi, and indirect boilers are the rating categories.
Indirect gas boilers – advantages and disadvantages, connection options
Content:
Device and principle of operation
Boilers that use indirect heating are machines that hold hot water heated by an external source. The design of this equipment excludes a heating element.
The device’s primary feature is a heat exchanger that circulates coolant that has been heated to a specific temperature by the boiler through its tubes. In order to maximize the surface area for heat transfer, it is typically fashioned like a coil.
Thermal insulation is sandwiched between two layers of the device’s tank, serving a number of purposes:
- Reduction of heat losses,
- Protecting people from burns,
- Increasing the strength characteristics of the equipment.
A built-in thermostat regulates temperature, and a safety valve guards against pressure drops that could harm the equipment. The majority of these equipment models have a magnesium anode installed, which shields the interior surface from corrosion’s appearance and effects.
Manufacturers of heating equipment frequently design and create an array of components that work flawlessly together, boiler-to-boiler. However, there are also water heating devices that are universal and fit the majority of boiler types.
Main technical features
The following qualities should serve as a guide when choosing this kind of heating device within specific heating system parameters:
- Tank volume. Depending on the need and operating conditions (domestic or industrial), the equipment is presented on the market with a capacity of up to 2000 liters
- The capacity of the coil is usually indicated in the product passport based on the temperature of the heating medium coming from the boiler (approx. 77g Celsius). Celsius) and hot water temperature at the outlet (45-60 g. Celsius)
- The performance of the boiler characterizes the average water consumption in flowing mode for a certain time interval (l/min)
- The water pressure in the coil and at the boiler outlet should ideally be the same. Usually the maximum permissible level corresponds to 10 bar.
- The thickness of thermal insulation depends on the total capacity of the tank.
- The overall dimensions depend both on the volume of the boiler, its internal construction and the manufacturer"s design decisions.
Boiler connection to a gas boiler
It is possible to operate the indirect heating boiler independently of the central heater. Its own control panel and sophisticated automation system enable this.
The majority of models rely solely on an automated heater that is centralized. As a result, there are numerous connection scheme variations based on the attributes of the machinery and the operational environment.
There are two main methods for connecting autonomous heating systems to central heating devices when they are installed:
- To a single-circuit boiler
- To a two-circuit boiler.
Linkage to a boiler with a single circuit
An indirect heating boiler can be connected to a gas heating boiler using one of three fundamental schemes:
- With the help of 3-way mixing valve. This method is characterized by a clear setting and operation of the boiler"s built-in thermostat. When the temperature drops, mainly when there is a large hot water draw, a signal from the thermostat is applied to the 3-way valve, resulting in the supply of coolant to the coil. When the water temperature reaches the set value, the valve is closed and the heating medium is circulated in the heating circuit.
- Creation of parallel circuits using a pump group. This connection scheme implies the installation of check valves to prevent mixing of liquid flows.
- For more complex systems, which involve several central heating devices, as well as a large number of radiators, several water points, in addition to installing a pumping group, it is advisable to use a hydraulic distributor. It serves for a clear separation of the circuits.
Linkage to a boiler with two circuits
There are two ways to connect a device to a boiler with two circuits:
The first kind suggests connecting the device to the boiler using a conventional sequential scheme. The second kind is distinguished by the installation of additional devices (thermal heads, controllers, etc.) that control the coolant’s temperature in parallel with the existing equipment. д.)
Pros and cons of indirect gas boilers
- Saving on energy resources. Since this equipment works from a gas boiler and in most cases is energy-independent, the consumer does not spend any money for its operation.
- High performance due to the constant circulation of hot coolant in the heat exchanger.
- Reduction of scale and salt deposits due to treated water from the boiler entering the coil
- Longer service life compared to other types of equipment
- The possibility of organizing several points of hot water of constant temperature
- High cost of the set of equipment
- Requires a large space for installation. A separate room is ideal
- Providing hot water preparation only in the heating period
How to calculate and choose the right model – tips
A comparatively large family with high hot water consumption needs is the target market for a gas-fired indirect water storage tank. Therefore, you should be very clear about what you need when you buy this equipment. This also has an impact on the tank’s performance and volume, which determine the final cost.
The automation system that this or that model has available should also be taken into consideration. This has an impact on people’s safety in addition to operational convenience.
You can connect the device to various brands and types of gas boilers and avoid relying on the model of the main equipment due to its versatility.
The boiler’s service life is influenced by the materials used in its major structural components. The coil should ideally be composed of brass.
If the inner tank is made of stainless steel, it will last a long time; however, if it is coated with fiberglass or enamel, cracks will appear very soon. To arrange the equipment in a sensible manner, consideration must be given to the room’s measurements.
Benefits and drawbacks of indirect heating with gas boilers: connections available Contents: Instrument and working principle Boilers for indirect heating are apparatuses,
Advantages | Efficient heating, lower energy bills |
Disadvantages | Higher upfront cost, requires space for installation |
Homes can heat their buildings and produce hot water more effectively and efficiently with the help of gas indirect boilers. These boilers function by heating a different fluid—such as water or glycol—using a primary heat source—usually gas—and then transferring that heat to the hot water supply or heating system of the house. Compared to direct-fired boilers, this indirect heating method has a number of benefits, such as increased energy efficiency, lower operating costs, and a longer lifespan.
The energy efficiency of gas indirect boilers is one of their main advantages. These boilers can achieve higher levels of efficiency by heating a different fluid rather than just heating water or air. This is as a result of better control over the heat transfer process, which reduces energy waste. Furthermore, a lot of gas indirect boilers are made with cutting-edge features like electronic controls and modulating burners, which enhance performance and lower energy usage.
Gas indirect boilers are not only energy-efficient, but they also save homeowners money. Even though the upfront cost might be greater than with some other heating systems, the long-term energy cost savings can frequently cover this cost. In addition, indirect boilers typically need fewer repairs and replacements over time because they last longer and require less maintenance than direct-fired boilers. Over the boiler’s lifetime, homeowners may experience significant cost savings as a result of this.
The adaptability and compatibility of gas indirect boilers with different heating systems is another benefit. Gas indirect boilers are capable of effectively heating your house and supplying hot water when required, regardless of whether you have underfloor heating, radiators, or a combination of both. To further lessen their negative effects on the environment and energy expenses, these boilers can also be integrated with renewable energy sources like heat pumps or solar thermal systems.
To sum up, gas indirect boilers give homeowners a dependable, economical, and efficient way to heat their houses and have hot water. These boilers are an excellent option for anyone wishing to upgrade their heating system because of their cost-effectiveness, energy efficiency, adaptability, and compatibility with renewable energy sources. Homeowners can lower their energy costs and environmental impact while enjoying comfortable indoor temperatures and hot water by investing in a gas indirect boiler.
In today"s article on heating and insulation for your home, we delve into the world of gas indirect boilers. These innovative heating systems offer efficient and reliable warmth for your household while minimizing energy costs. Unlike conventional boilers, indirect boilers use a heat exchanger to transfer heat from a primary source, such as a gas furnace or a solar thermal system, to the water in the boiler. This indirect method ensures better energy efficiency and reduces the risk of corrosion within the boiler, prolonging its lifespan. Gas indirect boilers also provide consistent hot water supply and can easily integrate with existing heating systems, making them a practical choice for modern homes. Whether you"re looking to upgrade your heating system or considering options for a new home, exploring the benefits of gas indirect boilers is a worthwhile endeavor for enhancing comfort and energy savings in your living space.