This webinar is a lecture on the principle of a heat pump. All Audiences heat pumps,HVAC sizing,residential You may also like 1:10:41 HERS ERI vs IECC ERI 57:03 Questions for the Permit Counter 7:10 HRV vs ERVs 50:57 Residential Existing Buildings 53:37 Building Codes Q & A Session 57:12 Commercial Existing Buildings and the Energy Code 8:56 Continuous Insulation 1:00:35 The Reality of the Residential Prescriptive Path 1:04:30 Residential Ventilation Strategies «1…34567…9»Page 5 of 9