How much dust accumulates in a central heating system? September 29, 2014 No Comments It varies from one house to another for example: If you have pets, construction going on, unsealed roads & very dry weather etc…..Go to view how dusty some central heating systems accumulate dust. Previous Post Next Post You may also like September 29, 2014 How often should residential HVAC systems be cleaned? September 29, 2014 Do you guarantee your work ? May 30, 2019 To Whom All Do You Provide your Duct Cleaning Services?