Traditional Combi Boilers
Traditional combi boilers are classic gas-fired, wall-mounted units designed for radiator heating systems. A single appliance provides both space heating and domestic hot water, which is why this type of boiler remains a popular choice for apartments, private houses and small commercial premises in Baku and across Azerbaijan, where most existing buildings are built around radiator circuits.
How a traditional combi boiler works
The boiler burns gas to heat water, and this water circulates through a closed circuit to the radiators. When a hot water tap is opened, a separate heat exchanger prepares hot water for the kitchen or bathroom. Because the design does not rely on condensing technology, it is simple and mechanically robust, which makes servicing easier and supports a long service life.
Brands in this category
- Immergas – Italian wall-mounted boilers adapted to radiator systems, known for mechanical stability, safety systems and durable components.
- Navien – boilers based on South Korean technology, valued for their compact size and steady temperature control in radiator systems.
- WOLF – German heating technology recognised for high material quality, precise engineering and durable construction.
- Vanward – boilers widely used in Asian markets, chosen for their mechanical simplicity and practical operation.
- Decorall – practical and functional models for everyday heating with stable performance in classic radiator systems.
When comparing models, look at the combustion system, the safety components and the availability of service, not only at the brand name.
Main advantages
- Simple construction. Fewer electronic components mean fewer parts that can fail, and the boiler is generally easier to service.
- Compatible with radiator systems. The boiler can be connected to an existing radiator line without changing the pipework, and heat is distributed evenly through the rooms.
- Heating and hot water in one unit. No separate boiler is needed for domestic hot water in a typical apartment or house.
- Practical choice for well-insulated buildings. Where heat loss is low, a traditional boiler heats the space effectively.
How to choose the right capacity
The required power depends on the floor area, ceiling height, heat loss of the building, the number of radiators and the number of hot water points used at the same time. As a rough guide, 24 kW models suit small and medium-sized apartments, while 28–32 kW models are chosen for larger apartments and private houses. An incorrectly sized boiler affects both comfort and gas consumption, so the final choice should be based on a calculation for your property.
Installation and servicing
Professional installation is one of the main conditions for safe and long-lasting operation. An annual service inspection is recommended: cleaning the combustion chamber, checking the condition of the heat exchanger and verifying the system pressure. These procedures keep the boiler working safely and efficiently.
Traditional or condensing boiler?
Condensing boilers are more energy-efficient than traditional ones because they recover additional heat from the flue gases. Traditional combi boilers remain a practical and stable solution for radiator-based systems, especially in buildings with good insulation and moderate heat loss. The right choice depends on the type of heating system, the size of the property and your expected running costs.
Euroclima specialists can help you select a boiler that matches your property and heating system. Contact us and we will advise you on the right model.