Do Ventilation Fans Use a Lot of Electricity

Do Ventilation Fans Use a Lot of Electricity

Do Ventilation Fans Use a Lot of Electricity

Ventilation fans may be required for constant use in some dwellings. Naturally, this will raise concerns regarding energy usage. When you factor in the rise of energy bills, and the cost of living crisis, people are rightfully concerned about how their money must be spent.

Although ventilation fans are a requirement in homes, is the total costs they contribute to too much for people? Will they avoid using them?

With that in mind, In this blog, we will address the question ‘Do ventilation fans use a lot of electricity?’

With new buildings being made to be as energy efficient as possible, and the UK aiming for 95% of its electricity usage to be low carbon by 2030, it is imperative to understand how we can make the most of our ventilation. This is where applications such as extractor fans and heat recovery ventilation units come in.

To prevent mould, fresh air should constantly be introduced into your dwelling daily, as it helps to regulate temperature and reduce condensation. Introducing fresh air can be as simple as having a ventilation routine, or installing extractors or MVHR units. Almost all of this is facilitated by ducting.

Is ventilation legally required?

Absolutely. Ventilation is a legal requirement in buildings within the UK. Building regulations mandate that you must have provisions for ventilation to ensure an optimal indoor environment. As a result of this, you can prevent dampness, condensation, and mould growth.

Depending on the type of building, and its usage, stipulations may vary. Generally though, ventilation is a legal requirement. Most of the guidance can be found in Part F of the Building Regulations 2010.

If you fail to follow the guidance stipulated by the regulations, you will be subject to enforcement actions, which can include fines and penalties. In some cases, the building will not be legally able to be used until it is addressed.

For specific and up-to-date information on ventilation regulations in the UK, it is recommended to refer directly to the relevant building regulations documents or consult with a qualified professional in the field of building regulations compliance.

How often should I ventilate?

Ideally, ventilation should be undertaken each day at least once. Depending on the occupants in the building, and their usage of it, ventilation requirements may increase.

For example, if a family of 5 have a shower with hot water every day, it would be beneficial for the bathroom window to be open during and after everyone’s shower, with an extractor fan in operation.

Cooking hot meals for extended periods would also require ventilation through open windows, an extractor, and a cooker hood, depending on what is being cooked.

Is it better to ventilate during the day or night?

This will vary depending on circumstances, but any natural ventilation should be undertaken during the day ideally. The sun and its warmth can help to mitigate any cold that would arise as a result of the open windows.

The atmosphere is always colder/cooler at nighttime, which can make the dwelling too cold, and may present a chance to any budding thief to inspect your home. This is why natural ventilation should be undertaken during the daytime if possible.

Do ventilation fans use a lot of electricity?

Do ventilation fans use a lot of electricity?

This is subject to the type of ventilation being used. Cooker hoods generally use the most energy due to the power of extraction they have. That being said, most modern ventilation units use a few pounds worth of electricity on a yearly basis!

This presents great value for money, this holds true when you consider the fact that most modern ventilation systems can work automatically, or be used constantly.

Furthermore, when you consider the cost of living crisis, and the rise in energy bills, every little saving counts. This is why ventilation that runs extremely cheaply is absolutely paramount for your wallet and the air in your home.

In industrial environments, ventilation units will typically use a lot more electricity, this is because the size of the ventilation fan requires more power, due to it having to ventilate a larger space.

Is it cheaper to ventilate naturally instead?

Surprisingly, the answer is no in most cases. Although ventilating naturally by opening your windows is completely free, the time you do it, the length of time you leave it open for, and the weather all contribute to whether it will be cheaper or not.

If you leave your windows open for too long, especially on a cold day, it would be difficult for the home or building to naturally heat up again, unless it is in direct sunlight. If you aren’t careful, you may have windows open for too long, which would require the use of heating to get the building back to a comfortable temperature.

As a result of this, you could incur heftier energy bills as a result of the heating being used after naturally ventilating. In order to use your ventilation units less, be sure to open a window in the area briefly to assist the function of the ventilation unit.

For units that can operate automatically like an extractor fan, once a certain level of humidity isn’t present, the unit will stop functioning until it detects humidity again. Opening a window during this process will shorten the time taken for the ventilation unit to do its job. Just remember not to leave it open, especially if it’s cold!

Are there ways to remove humidity without ventilation or electricity?

Yes, but not to a massively effective degree. There are dehumidifiers available that do not require electricity. Humidity collects within the contraption, over time, the material that absorbs the humidity will be surrounded by water.

Though, this is only really effective for rooms or areas that don’t have excessive humidity in them. For rooms with excessive humidity (where you will likely also find mould) it is better to invest in ventilation units such as extractor fans, and use mould removal products if there is already mould in the area.

Are extractor fans loud?

If installed correctly, a new extractor fan shouldn’t be so loud that you can hear it in every corner of the home, but it should have a somewhat quiet hum that can be heard within its vicinity. New extractor fans are extremely quiet, but not silent. Most modern units are as loud as a whisper. Although, the acoustics of a home and the rooms can contribute to this.

Strong winds blowing into the ducting can result in the extractor fan operating louder than normal, however this generally resolves itself once the wind has calmed down.

If your extractor fan is too loud, this could be an indication of a hardware fault, incorrect installation, or debris within the ducting/unit. Sometimes, debris can be lodged between the fan, which can create a loud chainsaw-like noise which can be extremely loud and unpleasant.

In any instance, contact an expert to rectify the issue immediately.

Do old ventilation fans use more electricity?

Do old ventilation fans use more electricity?

Generally, yes. Older ventilation fans do not have the technology of newer units that allow them to be as energy efficient. In the long-term, this can contribute to higher electricity bills. This is especially true if the unit has not been maintained at all.

When should you replace an old ventilation fan?

Ventilation fans should be assessed every 5 years, and maintained, or at least checked once every 1 or 2 years. If well maintained, ventilation fans has the potential to last between 10–20 years.

If the ventilation fan is excessively congested, frequently needing repairs, and humidity is taking much longer to leave the room, it would be worth replacing the ventilation fan.

Who can install a new ventilation unit?

In order to acquire the services needed to install your ventilation unit, you must search for a ‘HVAC contractor.’ They can be found online or other directory formats. Some may be in your vicinity, whilst others provide services in various areas.

The likelihood is there would be a consultation, which may take place as a home visit. This is to ascertain the space available, and if there is anything in the home that would hinder the process. After this, they would likely provide a quote and go from there.*

If you want the best ventilation system suitable for your home, it may be worth contacting a HVAC contractor before buying your ventilation system, so they can advise what from our range is best suited to your home and needs. They also have the legal certifications required to install your ventilation unit.

*Please note that this is a general description of what may happen with a HVAC contractor. It does not reflect the individual practices and processes of every HVAC contractor.

Ventilate your home today

Ventilate your home today

At I-Sells, all things ventilation and ducting related is our speciality, we are here to answer the questions we know are common for those new to HVAC and what it encompasses.

We at I-Sells endeavour to ensure our customers have all the information they require before investing in our mould solutions. Be sure to visit our blog page to learn about the vast array of factors and issues surrounding ventilation, mould, condensation, and much more.

Within this blog, we hope to have answered the question ‘Do ventilation fans use a lot of electricity?’

We understand you may have more questions, do not hesitate to contact us for more information about whatever you need our help with. If you’d like to email us, click here. For other contact options, see below:

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