Can Heat Recovery System Be Used for Cooling?

Can Heat Recovery System Be Used for Cooling?

Heat recovery systems offer the ability to recycle extracted air and disperse it in your home as warm air, resulting in fresh air free from most pollutants and allergens. But what if you specifically want cool air?

In this blog we will answer the question ‘Can heat recovery system be used for cooling?’

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 heat recovery systems 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 heat recovery systems. Almost all of this is facilitated by ducting.

I-Sells is here to provide the answers you need whilst also supplying you with all the information you need to combat mould and have a well-ventilated home.

Heat recovery systems explained

A heat recovery system has the benefit of keeping your home energy efficient and warm, whilst maintaining ventilation. Heat recovery systems vary in size, some can be made just for a singular room, whilst others are made for your whole home. 

The aim of a heat recovery system, aside from recovering any heat that is lost through ventilation, is to create an environment in which condensation, and consequently mould can’t survive in. 

The advantages of heat recovery systems are the following:

  • Holds all the benefits of an extractor, including the removal of stale air, humidity and smells.
  • The process of the heat recovery system results in an energy-efficient outcome, meaning that there is a possibility you can save money on energy bills in the long term. 
  • It helps to prevent the cultivation of mould through the removal of humidity.
  • Temperature sensors ensure that additional heat is not being added to the atmosphere of the home if it is already hot. 
  • Heat recovery systems take a lot of the burden from you conducting a ventilation routine. This is ideal for a vulnerable person.

Benefits of heat recovery systems

Here are some further benefits of having a heat recovery unit:

  • Less of a need to use your central heating frequently as the heat generated through your house is recycled through the heat recovery unit.
  • The recycling of indoor air without removal keeps the air fresh without having to lose any heat which is vital, especially in winter.
  • Helps to create an environment not fit for mould and condensation
  • The reduced use of heating as a result of the heat conservation granted by a heat recovery unit can help you save on energy bills.

Can heat recovery system be used for cooling?

Not exactly, There may be some heat recovery systems that have adjustable temperatures, or the ability to not recycle any extracted heat, but these systems are generally designed to recover heat that would otherwise be lost through extraction. 

Can a normal extractor be used for cooling?

Again, no. A regular extractor will remove humid air, in addition to odours and stale air in the home. That being said, there may be models that have the ability to condition and return extracted air.

When should you cool your home?

Your home should be cooled when the internal temperature gets beyond a point of comfort for you & the other residents, overheating your home can not only result in a higher energy bill, but can also affect your health, or cause condensation, which can result in mould.

Keeping your home in a balanced state, not too hot, or too cold, results in an environment free from mould, and a comfortable for yourself and the other occupants of the home.

What’s the quickest way to cool my home?

If you’re looking to cool your home quickly and effectively, the easiest method is simply opening your windows, this is also considered to be part of a ventilation routine. Here is the best way to cool your home.

Open the windows on both levels of your home (or on both sides of your apartment or bungalow) make sure the doorways are open and there is no objects that can fall from the windowsills. 

This method essentially creates a passage of air that travels through your home, replacing the air of your home with fresh outdoor air.

Alternatively, you can use an air conditioning unit, but please be aware that these systems recycle the air already present in the room (unless you have a window open in the room)

Is a heat recovery system the same as an air conditioner?

No, a heat recovery system replaces indoor air with fresh outdoor air, whilst making sure it maintains a similar level of heat, resulting in no noticeable loss of heat in the room it is in. 

An air conditioning system, as the name suggests, conditions the air of the room that it is in, it takes the air and redelivers it at a cooler or warmer temperature depending on your needs. Air conditioners only disperse fresh air if the unit is next to or in the vicinity of an open window. 

Do heat recovery systems kill mould?

No, heat recovery systems do not directly destroy mould, if you already have mould in your home, having a heat recovery system will not make it disappear, you must address it by removing it, this can be done through mould removal products / addressing the cause of the mould.

That being said, heat recovery systems serve to prevent the environment necessary for mould to grow. Although it can’t kill mould, it can make sure the environment is not habitable for it. 

Can I remove mould without a heat recovery system?

Yes, as we highlighted earlier, heat recovery systems change the environment that mould thrives on, it does not get rid of mould that is already there. Here are some options for mould removal.

Option 1: Natural Solutions

If you are looking for natural alternatives to get rid of mould, try using distilled white vinegar, the acidic properties in the vinegar helps to dissolve the mould. (This method may prove to be ineffective against a large collection of mould, so don’t rely on this method entirely.)

If there are noticeable and effective results, repeat until it is completely gone. If it fails, this means that the mould is penetrated deeper than surface level, if mould control solutions don’t make an improvement, it is best to call local mould cleaning services.

Option 2: Products

Mould removal products have special substances that prevent mould from coming back (depending on the severity) This is definitely worth a try especially if natural solutions didn’t work

Our solutions include

Purchase a heat recovery system today

We at I-Sells endeavour to ensure our customers have all the information they need 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. 

We hope to have answered the question ‘Can heat recovery system be used for cooling?’

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 send us an email, click here. For other contact options, see below:

Call us on 020 8463 9696

Visit us at our showroom:


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Saturday: 9:00 am to 12:00 pm
Sunday: Closed

15 St John’s Parade
Sidcup, Kent
DA14 6ES
United Kingdom

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