Energy-efficient systems with, among other things, a low SFP (Specific Fan Power) value and operating costs

Nyheds Web Sel

Ventilation systems can be big energy guzzlers, and with high electricity prices, it can be an expensive proposition for schools, institutions, and workplaces to have one or more ventilation systems running. However, with a decentralized ventilation system from Airmaster, there can be a big gain: the systems are an energy-efficient ventilation solution – both economically and in terms of indoor climate and sustainability.

Specific Fan Power - SFP value
With Airmaster's decentralized ventilation system, it is possible to save on electricity bills. The systems are demand-controlled and ventilate only when needed. Hereby reducing the overall amount of air to be transported. This means less/lower energy consumption. The Danish Building Regulations (Bygningsreglementet) set requirements for ventilation systems and their energy consumption. One of the requirements concerns electricity consumption for transporting air. A ventilation system uses a lot of energy to transport the air needed to ventilate a room - also called SFP value.

The Danish Building Regulations 2018 demands require that the SFP value of ventilation systems must not exceed 1500 Ws/m³ for ventilation systems with a constant air flow and a maximum of 1800 Ws/m³ for systems with variable air flow [BR18, Section 436].

A low SFP value naturally means low electricity consumption to operate the ventilation, which is an advantage if you want to save on your electricity bill. Airmaster's decentralized ventilation systems typically have an SFP value of 600-900 Ws/m³, making them extremely energy efficient to operate.

Read more about the SFP value on our system data sheets here:

No ducting - lower energy consumption
But it's not just the low SFP value that makes Airmaster systems more energy efficient. The units are decentralized and a Plug & Play solution, which means they are installed in the room that needs ventilation, close to an external wall, and hence don’t require without ducts to transport the air to and from the room. It minimizes energy and heat loss when transporting air and is therefore an energy-efficient solution.

The use of metal and insulation is reduced, and energy consumption can be halved. A decentralized solution from Airmaster can also be demand-controlled if the system is installed with, for example, a CO2 sensor or motion sensor. This means that the system only operates when it is needed.

Good for both the economy and the environment
Reducing energy costs in public institutions, for example, is a political goal - both to reduce operating costs and to help cut carbon emissions.

Together with engineering firm MOE, we at Airmaster have prepared a LCA analysis, which concludes that the total carbon impact of a decentralized ventilation solution including operation is up to 52% lower than a central VAV solution over a 25-year period. Over time, a decentralized ventilation solution will therefore be more beneficial for the operating budget because ongoing energy costs are reduced.

One of the great advantages of decentralized ventilation solutions is that the installation can be divided. This makes it more affordable to install the ventilation in stages, for example, for schools or other public institutions, which can then improve the most heavily used rooms first.

Read more about MOE's LCA analysis here:

Interested to learn more?
Contact our sales team here

Ready for a breath of fresh air

At Airmaster, we are “decentral” through and through. We are unrivalled when it comes to creating the best indoor climate and optimal well-being because we take each room and its occupants into account – and because we constantly strive to improve on what we do.

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