When I turn on my heat for the first time during the year, a burning smell comes out of my vents. Is that normal?

Yes, that burning smell comes from the burning off of a small amount of dust that accumulates on your heat strip from lack of use. The smell should only last about 30 minutes or so and then dissipate. This is normal. If the smell lasts for longer than an hour, call Air Flow Designs for service.
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