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 What is a normal price range for an air duct cleaning service? September 29, 2014 How should a residential HVAC system be cleaned? March 12, 2015 Can you do carbon monoxide testing?