Resource Library

Use this estimator to determine a climate-adjusted coefficient of performance (COP) for the ECO2 CO2 Heat Pump Water Heater. This estimator also includes instructions on modeling storage losses associated with water storage tanks and swing tanks per ECO2's available products. This estimator is applicable for Gen 1 through Gen 5.

Use this estimator to determine a climate-adjusted coefficient of performance (COP) for the Daikin Mega-Q Heat Pump Water Heater. This estimator is applicable for the RXHWQ120MQTJA heat source unit model paired with the BWLP120TJU cascade unit model.

Use this estimator to determine a climate-adjusted coefficient of performance (COP) for the Mitsubishi QAHV CO2 Heat Pump Water Heater. This estimator is applicable for the N136TAU-HPB and N136YAU-HPB models.

Phius Certification Manager Al Mitchell answers mechanical system questions.

This blog defines Phius' guidelines for the performance verification of constant air volume devices on projects pursuing Phius Certification.

Phius Certification Manager Al Mitchell fields questions on mechanical systems.

Phius Certification Manager Al Mitchell dives into the new and improved CERV calculator to aid in Phius Certification.

Phius Building Certification Manager Al Mitchell provides details on the new Phius Intermittent Exhaust & Make-Up Air Estimator.

Use this estimator to determine if a building targeting Phius Certification is required to provide a dedicated make-up air system when using intermittent direct exhaust systems such as exhaust dryers or exhaust kitchen range hoods.

Phius Certification Manager Al Mitchell fields mechanical systems questions.