Have a new Ac/Gas furnace. Now that we have started using the heat, we have what seems like ash on all horizontal spaces. Is this normal cause its new and just needs to be broke in. . Thank you

Quote, (like ash on all horizontal spaces),, please explain just a little better,, what are horizontal spaces?

wmproop, talking about table tops, tops of chairs, dresser tops . Each time the furnace kicks on it leaves like a dust appearance on everything, like dandruff.

Maybe you need to clean the duct work, they could have jarred something loose, what is your ductwork/trunkline/plenium/ made of? Also check the filter more often