Ventilation System Costs - 26/09/2018
So - you are considering purchasing a Home Ventilation System? You might still be a little unsure about how much they cost. There’s a few things worth considering in the early stages of researching what ventilation system is right for you and your home. There are many things to consider when choosing a ventilation system, including things like: the upfront install costs, the ongoing power charges, and any ongoing maintenance costs.
Our Guide to Ventilation Costs below is a good place to start when looking at ventilation options for your home.
How Ventilation Works
Ventilating your home is an important, and sometimes neglected, part of housekeeping. In order to help prevent mould and condensation, it is important that the home is well ventilated.
Simply opening a window may help slightly, however one open window can’t create enough of a draft to push air out and bring air in simultaneously. When you have a Home Ventilation System installed in your home that is exactly what it’s doing.
A Home Ventilation System works as the lungs of your home; sending old stagnant air out, while bringing new filtered air in. Depending on what type of system you opt for, the air is either sourced from your roof space or from outside, before being passed through a filter and pumped through multiple vents in your home.
Having this constant supply of clean, dry air coming in, whilst sending out the old stagnant, moisture rich air, helps to keep the home warmer and drier.
Types of Ventilation Units
There are two main types of Home Ventilation Systems available on the New Zealand market. They both work to bring clean fresh air into your home but the two units work a little differently.
Positive Pressure Systems
A positive pressure Home Ventilation System works by taking warmer, drier air from the home’s roof space, passing it through a filter and distributing it via a fan through one or more ducts, pushing it to a number of areas in your home.
The air in the roof space of a house tends to be drier and warmer than in the living spaces as it gets heated by the sunlight hitting your roof during the day. During summer nights, the roof space will cool down a lot faster than your home, therefore the air inside will be slightly cooler than in the house.
By creating this movement of air throughout the home, the old and more stagnant air is forced out to make way for the new air that is being pumped in.
The positive pressure created by the system also helps to limit the amount of damp air from the outside that can work its way into your home if there are small gaps or cracks in the building. This can be a good option if you have an older or draftier home, but can also work well in a new build.
Balanced Pressure Systems
The second type of ventilation system common to New Zealand is the Balanced Pressure Home Ventilation System. These work in a similar way to the Positive Pressure System, however two fans are used; one to send air into the home from outside and another to send an equal balanced amount of exhaust air out of the home.
The exhaust air is sent out via a heat exchange unit which holds onto a portion of the heat and then uses it to temper the fresh, incoming air.
Balanced Pressure Systems tend to be better suited to new homes that are airtight. This is because for the heat exchange unit to effectively heat the incoming air, you want as much exhaust air as possible to be going out via the heat exchange unit and not out through draughty windows!
Prices & Installation Costs
The cost of installing a Home Ventilation System will depend on the size and location of your dwelling, as well as power supply, roof cavity access and the number of rooms. It’s not as straightforward as calculating the size of your home and corresponding that to a unit and fee. Rather we take into account the location of your home, the layout, internal and external environmental factors, as well as your interior design preferences!
For example, if we take a smaller home we would estimate a smaller ventilation unit could be suitable. Estimated costs for this unit would begin from $3369.00* including installation.
*This is the starting cost for a Janus 2 (1 Fan + 2 vent system)
As New Zealand’s largest ventilation company, our nationwide network of professional installers work with you to form a ventilation solution that best suits your needs. We offer a Free Home Assessment where our representatives come to you, assess your home, take into account your needs and concerns and then advise you exactly what options would be best for you.
Just as your ventilation system make-up will be bespoke to your situation, your running costs will be too.
HRV Ventilation systems monitor the temperature of your home up to 4 times per second and adjust the fan speed accordingly in order to maintain the optimal temperature for your family. Your HRV system will run 24/7 and settings will automatically adjust to maintain the settings you choose.