Jul 17, 2024 | Dr. Energy |
2021 IECC & IRC: Duct Sealing True or False: Duct sealing is not important when the duct is inside the thermal envelope, as there is no leakage to outside. Hopefully your response is False. Over the past several years, Mitch Richardson with Building Science West...
Aug 4, 2022 | Dr. Energy |
Application of the building science principles of heat transfer indicates that Heating, ventilation, and air conditioning (HVAC) systems located in unconditioned attics are inefficient, typically increasing energy usage by 25 to 50%. Conventional wisdom is that...
Aug 3, 2022 | Dr. Energy |
During the 2022 Utah Legislative Session, House Bill 39 was passed and subsequently signed by Gov. Spencer J. Cox. The bill included amendments to home battery storage systems, plumbing fixture flow rates, household appliance refrigeration standards, and fire...
Jun 29, 2022 | Dr. Energy |
I have a room in my house which is cold in the winter and hot in the summer, I need a bigger system!” “My house isn’t cooling well so I hired a guy to put in a 5-ton air conditioner.” No, you don’t need a bigger system. You have an airflow problem. Low or incorrect...
Jun 1, 2022 | Dr. Energy |
The outdoor section for a central air conditioning (AC) unit and heat pump relies heavily on proper air circulation to function properly. The AC condenser fan pulls in ambient air, typically through one or more of the sides of the unit, through the condenser coil,...
May 12, 2022 | Dr. Energy |
An HVAC contractor recently asked the following questions about Energy Recovery Ventilators and Make-Up Air: “We are currently doing a new construction home and the General Contractor just told us they are having a 900 CFM (cubic feet per minute) kitchen range exhaust...
