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 should a residential HVAC system be cleaned? September 29, 2014 Do you sell the covers or grilles that go over my floor duct outlets? September 29, 2014 Do you remove rodents & animals from the duct systems?