Designed and manufactured by Ferroli, the Econcept 51A is a wall mounted modulating condensing boiler that has a 5-star rating for low emissions.

The boiler features cutting-edge technology and can operate on either natural gas or LPG (liquefied petroleum gas) depending on your requirements. It also has a high output of 50kW, measures in at 720mm (H) x 630mm (W) x 380mm (D) and is fully equipped with a ceramic premix burner.

As the Econcept 51A can be installed as a singular unit or as part of a multi-boiler cascade setup (up to five units can be connected), this model is ideal for large domestic dwellings and small commercial properties. You can expect to pay around £1,874.66 for the boiler, which comes with a standard 1-year warranty.

Boiler Energy Efficiency Credentials

The Ferroli Econcept 51A is 98% efficient and 4-star rated for efficiency. Thanks to its very low NOx emissions, the boiler is rated 5 stars for low emissions and widely compliant with class 5 EN 297 – the best performing class. To ensure user comfort and energy savings throughout the year, this appliance can be installed with an optional external probe which activates a ‘Sliding Temperature’ mode to control heating system temperatures according to outside weather conditions.

Econcept 51A Technology and Main Advantages

This highly energy efficient boiler by Ferroli features a premix ceramic reverse micro flame burner to eliminate the effects of thermal expansion of the burners and deliver extremely low emissions. It has its own efficient aluminium silica alloy heat exchanger with 16mm waterways to prevent the risk of hot spots and debris-related corrosion.

An inbuilt boiler pump has been included, or you can choose an optional inbuilt DHWS (domestic hot water system) pump if you wish – with the DHWS control performed by the on-board controller. The boiler is also available in cascade operation (maximum of five boilers) and there is no need for additional controls to allow for this.

Ferroli’s Econcept 51A has a low water pressure protection switch, hot surface ignition with independent flame detection probe and internal 6 bar safety valve. It also features microprocessor controls and a multi-function display panel to enable you to manage heating temperatures with ease. What’s more, efficiency can be maximised with independent external switching of controls.

Is the Econcept 51A the Right Boiler Type and Size for Your Home?

Developed for modular application, the Econcept 51A is ideal for small commercial sites and large domestic properties with multiple bathrooms. Since this model has cascading boiler capability it is best suited to larger buildings that require a heat generator that can reach a very high output. As this is a large, powerful appliance, you must ask a Gas Safe engineer to assess your property and needs to make sure you select the right sized boiler. If you choose a boiler that is too big for your home or business premises, your energy bills are likely to rise.