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,
The available static pressure of your blower plays a huge role in making sure the HVAC system is able to perform optimally. After performing the
Interested in our Duct and Envelope Tightness (DET) Verification training? Check out the two sample how-to videos below on running the blower door tests using
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.
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
120,000 homes were “officially” evaluated by HERS raters in 2010 – a 7% increase from 2009. Believe it or not, this number represents 41% of all new homes built in 2010!
ENERGY STAR for Homes program guidelines will transition to Version 2.5 in 2011. Many homes under construction right now will be required to meet the updated requirements! This article lists lists the most significant changes and describes how this will affect the certification process.
Standard gas water heaters are one of the most dangerous appliances I see in homes. This one was found in the basement of an extremely leaky house.
