In practical terms, this means keeping the chill off the house by leaving heaters on low rather than turning them off completely at night.
Minimum indoor temperatures
Many New Zealand houses are under-heated and poorly insulated, with low indoor temperatures during winter causing health problems, condensation and dampness.
In order to ensure a comfortable and healthy home environment and for the most effective moisture and condensation control, we recommend maintaining your indoor room temperatures above 16 degrees Celsius and, ideally, around 18 degrees Celsius. If temperatures inside the home fall below 12 degrees Celsius, then condensation is likely to form, even in homes that are well ventilated by the DVS.
If temperatures inside the home are not maintained at reasonable levels, particularly on colder days and nights, the effectiveness of the DVS may be reduced. This may prevent the DVS system from being able to achieve as high a level of condensation control as would otherwise be expected.
Some misting or condensation may be experienced due to low indoor temperatures, even in homes that are otherwise well ventilated by the DVS.