No smell from coal in my experience..
But I'm concerned that you are planning on installing a Coal AND WOOD hand fired appliance..
Please share your intensions for what you are going to buy and install.. There are a lot of good coal appliances but few good wood and coal appliances.
PLEASE don't buy a US Stove product unless you have a desire to do a lot of tinkering to get it to burn right, and you must have a very good, tall chimney as well.