Modern homes are well sealed to ensure warmth is retained and moisture is kept out. Unfortunately, with no outside air coming into homes stale air that may also be contaminated with fumes from things as inconsequential as furniture or treated wood in cabinetry, is also retained, as is moisture from showers and cooking and so ventilation systems can be very beneficial to the healthy state of a home.
Home Ventilation systems bring in fresh air from outside and deliver to selected rooms within the house.
There may be some aid to heating your home as sometimes the air brought in may be less humid than the air inside – and dry air is easier to heat but they are not heating systems in and of themselves.
Some systems gather air from the roof cavity. Air heated during the day is collected, filtered and then disseminated through the house. This can result in warm air being delivered inside during the day, and cool air during the night as the roof cavity cools. They are not, however, a heating system, unless they have that feature installed.
