{"Page SDG":["SDG07 Affordable and clean energy"],"Page URL":["https://www.appropedia.org/Thermal_mass"],"Page affiliations":["Category:Clarion University of Pennsylvania"],"Page description":["[[Thermal mass]] is a heat storage material, such as water, concrete, masonry, or , used in  systems also known as passive solar heating systems. With passive solar heating, the house itself acts as the solar collector and the storage facility. The essential elements of a passive solar system are:"],"Page is part of":["PH261"],"Page keywords":["Passive solar","Thermal insulation","energy efficiency","construction","passive solar","energy efficient building"],"Page language":["en"],"Page license":["CC-BY-SA-3.0"],"Page views":[348],"Page year":["Monday, 01-Jan-07 00:00:00 UTC"],"Modification date":["Wednesday, 16-Sep-26 16:00:10 UTC"]}