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Wall-mounted boilers

Heating and hot water from a single compact wall-mounted unit: condensing wall-hung boilers take up very little space and cut consumption. Find the leading brands ready to ship, with prices starting from 370 euros.
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What is a condensing wall-hung boiler?

The condensing wall-hung boiler is a compact heat generator designed to be fixed directly to the wall, without taking up floor space. It recovers the heat from the flue gases that a traditional boiler would waste, increasing efficiency and lowering gas consumption. Thanks to its compact dimensions, it fits in a kitchen, a bathroom, a covered balcony or inside a dedicated cabinet, and it is the most common solution in apartments.

Why choose the wall-hung format

The main advantage is compactness. A wall-hung boiler weighs and takes up far less space than a floor-standing model, so wall installation is faster and more flexible. Here are the reasons it remains the first choice:

  • Compactness: small dimensions, ideal when space is limited.
  • Wall installation: mounted on a load-bearing wall, without taking up floor space.
  • Efficiency: condensing technology recovers heat and lowers the bill.
  • Versatility: it pairs easily with radiators and underfloor heating.

If you are looking for a broader overview of the technology, you can also browse the condensing boilers category.

Combi models for heating and domestic hot water

Most wall-hung boilers are combi models, meaning a single unit handles both the heating of the radiators and the production of domestic hot water for taps and shower. Instantaneous models heat the water at the moment it is drawn, while those with a small built-in tank ensure a more constant flow when several taps are open at once. If your hot water needs are high, you can also consider a dedicated water heater or a heat pump water heater to supplement the system.

Typical outputs and how to choose

Output is measured in kW and is chosen according to the area to be heated and the number of bathrooms served. In our catalogue you will find mainly these sizes:

  • 24 to 25 kW: standard apartments with one or two bathrooms, the most requested size.
  • 28 to 30 kW: larger homes or those with a higher simultaneous hot water demand.
  • 32 to 35 kW: large houses, two or more bathrooms and mixed radiator and underfloor systems.

For external technical rooms or very large spaces, a floor-standing solution may make sense, but for the classic apartment the wall-hung boiler remains the most balanced choice between footprint, output and price.

The best brands available

You will find the leading manufacturers in the sector, with official warranty and easily sourced spare parts: Ariston, Ferroli, Riello, Beretta, Chaffoteaux, Immergas and Vaillant. Prices start at around 370 euros for the most compact models and rise to the highest-performing solutions, for every budget.

Tax deductions and incentives

Replacing an old boiler with a high-efficiency condensing wall-hung boiler may qualify for tax incentives where applicable, such as reduced VAT for renovation work. The conditions depend on the type of work and the documentation, so it is worth checking the current requirements before buying. If you are renovating your system, you can take a look at all the active offers and the products for home heating.

Frequently asked questions

What is the difference between a wall-hung boiler and a floor-standing one?
The wall-hung boiler is fixed to the wall and takes up very little space, perfect for apartments and small rooms. The floor-standing version sits on the floor, usually offers higher outputs and larger tanks, and suits large houses or dedicated technical rooms.
Does a combi wall-hung boiler also produce domestic hot water?
Yes. Most wall-hung boilers are combi models and a single unit handles both the heating of the radiators and the hot water for taps and shower, either instantaneously or with a small built-in tank.
How many kW do you need for an apartment?
For a standard apartment with one or two bathrooms, 24 to 25 kW is usually enough. For larger homes or those with several bathrooms in use at the same time, it is better to step up to an output of 28 to 35 kW.
How much does a condensing wall-hung boiler cost?
At ClimaConvenienza, prices start at around 370 euros for the most compact models and reach the highest-performing solutions from premium brands. The cost depends on the output, the type of hot water and the model's features.
Which brands of wall-hung boilers can I find?
You will find the leading manufacturers in the sector, including Ariston, Ferroli, Riello, Beretta, Chaffoteaux, Immergas and Vaillant, all with official warranty and easily sourced spare parts.
Can I get reduced VAT on the wall-hung boiler?
In many cases yes, when the replacement is part of renovation work. The application of tax incentives where applicable, such as reduced VAT for renovation work, depends on the type of work and the documentation, so it is worth checking the current requirements before buying.
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