Whole-building ventilation Whole building ventilation should dilute interior pollutants by creating an air exchange within the home. This can be achieved by one or more
Tuesday January 1, 2013 – Monday December 17, 2012 | Register Description: To date, 29 states have adopted codes equivalent to the 2009 or 2012
Manual-D is ACCA’s duct design method for properly sizing the airflow pathways – the ductwork – within a residential heating and cooling system. Even though
Are you still using rules of thumb to size HVAC equipment? This one size fits all approach can get you in trouble with your clients
Starting today, any residential building code official can obtain access to our Duct and Envelope Tightness Verifier training for FREE. This training covers the building
Tight houses need mechanical ventilation to ensure a supply of fresh air to keep people healthy; and existing houses should not be tightened without assessing whether the existing combustion appliances have an adequate source of combustion makeup air.
Friction Rate The friction rate tells us how much friction our ductwork should produce, per 100’, so that we consume the rest of our available
More and more state codes are requiring room-by-room Manual-J load calculations as part of the permitting and inspection process. Virginia, North Carolina, South Carolina, Georgia,
