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How to get the Best from Your DVS System.
Your DVS Home Ventilation System has been configured, installed and calibrated to best meet your
family’s needs and the size and layout of your home. However, in order to get the best results it is
important that you, the homeowner, follow these General Guidelines.
Maintain adequate home heating to balance
cooler airflows during colder seasons,
particularly in colder regions of New Zealand.
According to research by the Building Research
Association of New Zealand (BRANZ), both
adequate heating and continuous ventilation
are needed to prevent excess moisture,
condensation, mould and mildew occurring in
New Zealand homes. If indoor temperatures
are not maintained at reasonable levels, even
small amounts of moisture inside the home can
cause condensation, even in homes which may
otherwise be well ventilated by the DVS system.
We advise a minimum of 16
o
C in the occupied
rooms for the purpose of condensation control.
All air contains water vapour, but it can only hold
a limited amount without becoming saturated.
The higher the temperature the more it can
contain.
Some customers may need to use additional
heating to balance the flow of cooler drier
air required to adequately control their
condensation and dampness. Most customers
have found that additional heating in colder
months is balanced by less heating required
during other times of the year, due to solar heat
gain from the roof space on warmer days, and
a drier home being easier to heat and requiring
less energy than a damp home.
Don’t be afraid to adjust and customise your
settings to achieve a good balance between
condensation control and airflow, especially in
colder seasons.
Your DVS ventilation system has been
individually configured and calibrated to your
home but we also recognise that every home,
location and family are different. We have
designed the DVS system so you can easily
customise and adjust the settings to best meet
your needs, changes in the seasons, family
circumstances and the weather.
Don’t be afraid to ‘experiment’ with your DVS
system by increasing or decreasing the airflow
to achieve the best results. In general, the
greater the airflow the greater the level of
condensation control.
But remember, too much air may cool your home
unnecessarily in winter, while too little airflow
will not be effective in controlling condensation.
Experiment with your controller to find the right
balance for your home, and remember to use
additional heating if needed to ensure both a
dry and comfortable home.
You might wish to increase the airflow of
your DVS system if …
You have friends or family staying. More
showers, cooking and breathing may cause
condensation or misting due to higher
levels of moisture generated in the home.
You may experience some temporary
‘misting’ or minor condensation during very
cold weather.
You might wish to decrease the airflow of
your DVS system if …
You are concerned about too much cooler air
entering your home during colder seasons.
Try reducing the airflow a little at a time
until you get to the point where misting or
condensation starts to appear. The lower
the airflow the lower the DVS systems
ability to control condensation, so if you
turn the system down too far, condensation
will occur more frequently.