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 I would like to know how much the duct cleaning is going to cost ? September 29, 2014 What is a normal price range for an air duct cleaning service? September 29, 2014 Are there any health benefits that come from HVAC system cleaning?