Unical
Unical KON M C24 Low NOx LPG Condensing Boiler Complete with Fume Exhaust Kit
€976,50€1.123,50VAT includedUnit price /UnavailableVaillant
Caldaia a Condensazione Vaillant ecoTEC Plus VMW 30 CS/1-5 CFI Metano/Gpl Wi-Fi con Kit Scarico Fumi
€2.159,85VAT includedUnit price /UnavailableSime
Caldaia a Condensazione Sime Praktica 25 HE Metano con Kit Scarico Fumi
€826,35VAT includedUnit price /UnavailableHermann Saunier Duval
From €1.323,00VAT includedUnit price /UnavailableBaxi
Caldaia a Condensazione Baxi LUNA CENTURY 26 Metano/Gpl con Sdoppiato di Serie
€1.122,45VAT includedUnit price /UnavailableFerroli
€2.125,20VAT includedUnit price /UnavailableChaffoteaux
CHAFFOTEAUX MIRA ADVANCE GAS BOILER 30 kW LINK Wi-Fi METHANE WITH SMOKE EXHAUST KIT Split smoke kit
€1.314,60VAT includedUnit price /UnavailableChaffoteaux
PIGMA ADVANCE 35 kW EU Chaffoteaux condensing boiler complete with flue gas exhaust kit
€1.162,35VAT includedUnit price /UnavailableFerroli
€1.841,70VAT includedUnit price /UnavailableBiasi
Biasi RinNOVA COND 24S condensing boiler Low NOx class A Complete with methane fume exhaust kit
€866,25VAT includedUnit price /UnavailableVaillant
Caldaia a Condensazione Vaillant ecoTec Pro VMW 286/5-3+ Metano/Gpl Wi-Fi con Kit Scarico Fumi
€1.536,15VAT includedUnit price /UnavailableRinnai
Caldaia a Condensazione Rinnai Zen 34 kW WiFi Metano con Kit Scarico Fumi
€1.846,95VAT includedUnit price /UnavailableImmergas
€1.169,70VAT includedUnit price /UnavailableFerroli
Caldaia a Condensazione Ferroli Bluehelix Maxima 28C Metano/Gpl con Kit Scarico Fumi
€1.303,05VAT includedUnit price /UnavailableHermann Saunier Duval
From €1.211,70VAT includedUnit price /UnavailableBaxi
Caldaia a Condensazione Baxi Luna Prime 28 Metano/Gpl con Kit Scarico Fumi
€786,45VAT includedUnit price /UnavailableChaffoteaux
Chaffoteaux INOA GREEN IN 25 Built-in Condensing Boiler Complete with Fume Exhaust Kit cod. 3310578
€997,50VAT includedUnit price /UnavailableRiello
Caldaia a Camera Aperta Riello START 24 KI LN Gpl
€593,25VAT includedUnit price /UnavailableVaillant
€2.051,70VAT includedUnit price /UnavailableAriston
Caldaia a Condensazione Ariston CLAS ONE SYSTEM 35 kW Metano Solo Riscaldamento Con Kit Scarico Fumi
€1.265,25VAT includedUnit price /UnavailableFerroli
Caldaia a Condensazione Ferroli Bluehelix HiTech Rrt 28 K 50 Metano/Gpl con Kit Scarico Fumi
€1.960,35VAT includedUnit price /UnavailableRiello
Caldaia a Condensazione Riello FAMILY HM 30 KIS Low NOx Metano/Gpl Con Kit Scarico Fumi
€1.442,70VAT includedUnit price /UnavailableOneCalor
Caldaia a Condensazione OneCalor EXPERIENCE LS 35 Metano/Gpl WiFi Ready con Kit Scarico Fumi
€796,95€1.312,50VAT includedUnit price /UnavailableJunkers Bosch
Caldaia a Condensazione Junkers Bosch Condens 4300 W GC4300W 24/25 C 23 con Kit Scarico Fumi
€1.183,35VAT includedUnit price /UnavailableBiasi
Biasi rinNova adaptive 25s low NOx condensing boiler complete with methane or LPG fume exhaust kit
€1.487,85VAT includedUnit price /UnavailableChaffoteaux
Caldaia a Condensazione Chaffoteaux Pigma Advance 30 kW Gpl con Kit Scarico Fumi
€1.086,75VAT includedUnit price /UnavailableChaffoteaux
Caldaia a Condensazione Chaffoteaux Mira Advance 35 kW Link Metano WiFi con Kit Scarico Fumi
€1.391,25VAT includedUnit price /UnavailableBeretta
Caldaia a Condensazione Beretta EXCLUSIVE X 25C Metano con Kit Scarico Fumi
€1.412,25VAT includedUnit price /UnavailableImmergas
€1.095,15VAT includedUnit price /UnavailableChaffoteaux
Caldaia a Condensazione Chaffoteaux Niagara Advance 35 C Metano con Kit Scarico Fumi
€1.701,00VAT includedUnit price /UnavailableBeretta
Caldaia a Condensazione Beretta MYNUTE EVO X 35C Metano/Gpl con Kit Scarico Fumi
€1.307,25VAT includedUnit price /UnavailableHermann Saunier Duval
Caldaia a Condensazione Hermann Saunier Duval Master Condens 35 kW Metano/Gpl con Kit Scarico Fumi
€2.399,25VAT includedUnit price /UnavailableAriston
€1.218,00VAT includedUnit price /UnavailableFerroli
Caldaia a Condensazione Ferroli Bluehelix Maxima 34C Metano/Gpl con Kit Scarico Fumi
€1.414,35VAT includedUnit price /UnavailableChaffoteaux
Caldaia a Camera Aperta Chaffoteaux Pigma Ultra 30 CF Metano
€745,50VAT includedUnit price /UnavailableImmergas
Caldaia a Condensazione Immergas Mythos Hp 24 kW WiFi Gpl con Kit Scarico Fumi
€868,35VAT includedUnit price /UnavailableRiello
Caldaia a Condensazione Riello Family Hm 25 Kis Metano/Gpl con Kit Scarico Fumi
€1.374,45VAT includedUnit price /UnavailableVaillant
Caldaia Elettrica Vaillant eloBLOCK VE 14/14 Trifase da 14 kW Solo Riscaldamento 0010023701
€679,35VAT includedUnit price /UnavailableChaffoteaux
Chaffoteaux Condensing Gas Boiler PIGMA ADVANCE 25 kW EU LPG Complete with Fume Exhaust Kit
€897,75VAT includedUnit price /UnavailableJunkers Bosch
Junkers Bosch Open Chamber Boiler CERASTAR 24 KW ZWR 24-7 KE 23 low NOx
€1.373,40VAT includedUnit price /UnavailableChaffoteaux
€1.365,00VAT includedUnit price /UnavailableFONDITAL
€1.125,60VAT includedUnit price /UnavailableVaillant
€1.464,75VAT includedUnit price /UnavailableVaillant
Caldaia a Condensazione Vaillant ecoTEC Plus VMW 26 CS/1-5 CFI Metano/Gpl Wi-Fi con Kit Scarico Fumi
€2.055,90VAT includedUnit price /UnavailableSime
Caldaia a Condensazione Sime Praktica 30 HE Metano con Kit Scarico Fumi
€955,50VAT includedUnit price /UnavailableRiello
Caldaia a Condensazione Riello Residence AQUA 25 Metano con Kit Scarico Fumi
€1.333,50VAT includedUnit price /UnavailableBaxi
Caldaia a Condensazione Baxi LUNA CENTURY 30 Metano/Gpl con Sdoppiato di Serie
€1.227,45VAT includedUnit price /UnavailableFerroli
Caldaia a Condensazione Ferroli Fbc 34C Metano/Gpl con Kit Scarico Fumi
Very low stock€753,90€910,35VAT includedUnit price /UnavailableJunkers Bosch
Caldaia a Condensazione Junkers Bosch Condens 1200 W GC1200W 24/30 C 23 Metano con Kit Scarico Fumi
€795,90VAT includedUnit price /Unavailable
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.

























































































































































































