This webinar is a lecture on the principle of a heat pump. All Audiences heat pumps,HVAC sizing,residential You may also like 59:31 Residential Building Science 50:57 Residential Existing Buildings 53:37 Building Codes Q & A Session 7:10 HRV vs ERVs 8:56 Continuous Insulation 1:00:35 The Reality of the Residential Prescriptive Path 57:12 Commercial Existing Buildings and the Energy Code 1:00:52 Unusual Spaces and the Energy Code 1:08:24 Compliance Pathways «1234567»Page 4 of 7