Q: I have caulked and weatherstripped to make my house more airtight, but the air seems stale. What are some efficient ...

Modern mechanical ventilation systems are very effective because ... differences in pressure between one side of a house and ...

A well-designed mechanical ventilation system provides clean, fresh air, reduces heat loss and improves energy efficiency. Whole-house MVHR systems extract warm, damp air from the home and draw in ...

Likewise, poor air quality days aren't great for open ... I have no experience with whole-house ventilation systems, so I recommend contacting a local HVAC installer if you want to add one to ...

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Active ventilation systems typically use electricity ... enter the living space from the attic and warm the house. Warm, moist, attic air can provide a great growing environment for molds in ...

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While ventilation systems should be principally thought of in terms of indoor air quality rather than energy performance, it's estimated that a typical demand controlled mechanical extract ventilation ...

Horse barns need air exchange to remove moisture, prevent condensation and provide fresh air. Naturally-ventilated systems are less costly, but have limited control of air flow and distribution.