Buying a home is likely the biggest investment you’ll ever make. Whether it’s a house you and your family will live in, or a property you plan to rent, it’s in your best interest to protect your investment as best you can. After all, it’s your future nest egg!

One factor that can plague homes and cause annoying and costly issues is damp and moisture. A house that is overly damp or is never able to fully dry out can be plagued with issues over time but this can generally be solved with proper ventilation. Installing a home ventilation system is a fantastic way to ensure your home is continuously ventilated, meaning it’s one less thing for you and your family to worry about. 

Read on to learn how a home ventilation system can help your house and to learn about the best ventilation system for your needs.


What Does a Positive Pressure Home Ventilation System Do?

If you’ve been manually ventilating your home most of your life, you’ll be used to having to open doors and windows year-round in order to let out stale air and let in fresh air. However, with a positive pressure ventilation system there’s no need to do this. So, how exactly does it work?

A positive pressure system is a roof ventilation unit, installed in your ceiling space and ducted throughout your entire home. This means that all areas get the ventilation they need to remain dry.

The concept behind the system is quite simple – the unit in the ceiling space draws in the fresher, drier air from the roof space and a fan pushes the air out to the ducts and into the rooms of your home. As this fresh air is fed into your home, the movement forces the stale, damp indoor air out of the room. Because of this, the damp air isn’t able to settle on cooler surfaces like windows and walls and has no time to convert into moisture. 

As a result of the damp air being unable to turn to water, your home is free from excess moisture and is significantly drier. Having a dry home means that when you need to warm it over the cooler months, it’ll be faster and more efficient to heat — great news for your electricity bills. 

While it draws warm air from your ceiling space, a ventilation system alone won’t sufficiently warm a house. However, paired with a heat source such as a heat pump, your dry and well-ventilated home will become a cosy haven faster than ever.

In addition to helping rid your home of excess moisture and making it drier, an HRV home ventilation system also helps to improve your home’s indoor air quality by filtering most of the common airborne asthma and allergy triggers from the incoming air. Because the ventilation systems are continuously working to replace the old air with new air, your home is always being replenished with clean, filtered air.

HRV old keypad

HRV Ventilation System Features

HRV ventilation systems have been especially designed to make our homes more comfortable, especially for those with allergies that can be triggered by air quality. 

With an HRV system, all new air is pushed through an F8 filter with nano-fibre filtration technology before it reaches your home. This means that the air is cleaner and the chances of airborne triggers are significantly decreased.

An HRV system delivers up to three complete air changes per hour to parts of your home, including bedrooms and living areas.

In addition to the core unit, buying an HRV ventilation system gives you the opportunity to add extra accessories to enhance the system’s performance and make your home as comfortable as possible. Adding a Heat Transfer Kit is a great winter solution for moving warmth from a heating source through to cooler areas of your home. Meanwhile, a SummerKit will help your home stay cool during the hot summer nights by drawing air from the cooler side of your home and ventilating more frequently.

Purchasing a product like a ventilation system is a big investment and HRV understands this. To make sure the installation of your ventilation system goes as smoothly as possible, our team handles all installations, rather than using contractors. By handling the installation ourselves, you can be sure the job is done by specialists and can get on with reaping the rewards of your system as fast as possible.

Along with completing the installation ourselves, HRV also offers ongoing support and service on all our ventilation systems. Ensuring that your system works to the best of its abilities for as long as possible is important, so our knowledgeable team is available for any queries or questions you have in regards to the running of your unit.

A big part of making sure that your ventilation system will continue to service your home as best it can is by installing one that actually works for your house. HRV tailors all ventilation systems to work within the specific layout of the home they’re being installed in. Before installation, we work with you to devise a system that best suits your home’s layout.

Types of Ventilation Systems Available

The type of ventilation system your home needs will depend on its size. However, there are some homes that we cannot install in. Because the units are installed in the roof cavity your home needs to have adequate cavity space that can be accessed. Ventilation systems also can’t be fitted in homes with excess moisture in the roof cavity or sub-floor, homes with holes in the roof or ceiling, or home’s with extractor fans vented into the roof cavity.

For homes with one or two bedrooms, a small ventilation system will be sufficient. The Janus 3 home ventilation system will deliver your home up to three air changes every hour.

Meanwhile, the medium system will suit those living in a home with two or three bedrooms. The Arizona 4 home ventilation system will help your home become drier and the nano-fibre filtration technology will make the air cleaner.

And for homes comprising of four or more bedrooms, the large system will be the best fit for your home. The Arizona 5 home ventilation system will flush out the stale air from the corners of your home and replace it with fresh air, creating a constant movement of air that helps prevent excess moisture from settling in.


Home Ventilation Accessories

Along with the core ventilation unit, there are a number of accessories that you can add to your system to customise it to best fit your home and environment.


HRV Heat Transfer Kit

If you heat one area in winter — such as a living room — but suffer from cold bedrooms, the Heat Transfer Kit can help you out. This add-on uses its centrifugal fans to take warm air generated by a large heat source, such as a fireplace, and disperses it to other areas of your home, creating a more balanced temperature.


Summer Kit

HRV SummerKit

Or, if your home is stuffy and sticky over the hot summer months, the SummerKit will keep you sane. This accessory draws air from the cooler southern side of your home and delivers more ventilation, more frequently so there’s constant movement during those warm evenings.



HRV Vortex Extractor Fan

For homes that particularly struggle with excess moisture in laundries and bathrooms, A Vortex extractor fan may be a fantastic choice. Installed in the ceiling and ventilated directly outside, this fan can even be paired with an HRV IntelliSwitch that will set the extractor to turn on when needed and switch off when the job is done — whether you’re home or not.


Sonair ventilation

Sonair Ventilation

If your home doesn’t have a roof cavity or you live in an apartment, Sonair ventilation is a great alternative. Designed to filter the air in single rooms, this slim wall-mounted unit is the perfect solution to helping reduce moisture in dwellings unsuited to ceiling-based ventilation units.


If you’re ready to hear more about HRV’s home ventilation systems, book a free home assessment today! Our knowledgeable team would love to talk to you about the best options for your home.