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A clogged filter restricts the flow of heated air from your furnace, causing it to work harder and deliver less heat.
The MN Department of Labor and Industry has provided some timeless tips to follow before you hire a contractor.
There is a comprehensive booklet available from the Environmental Protection Agency.
If a contractor is going door to door, they are required to have a 'Solicitor's License' from the City of Otsego and must have it with them for presentation.
The Minnesota Department of Health recommends every home be tested for radon.
The Minnesota Department of Health's Well Management Program protects both public health and groundwater by assuring the proper construction of new wells and borings, and the proper sealing of unused wells and borings.