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It varies from one house to another for example: If you have pets, construction going on, unsealed roads & very dry weather etc.....Go to Duct Cleaning Image Archive to view how dusty some central heating systems accumulate dust.
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vichardware.com
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2
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It varies from one house to another for example: If you have pets, construction going on, unsealed roads & very dry weather etc.....Go to Duct Cleaning Image Archive to view how dusty some central heating systems get.
more
|
vichardware.com
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How much dust accumulates in a central heating system ?