PS again, do not buy your coal from the garage, it's at least twice the price of the stuff you buy from the merchant, if not considerably more. The coal merchant will deliver 50kg of coal (a sack) for about £12-15, obviously you can get more than one sack (and in The Olden Days, some refused to deliver less than a tonne!) so you need to look at your coal storage. You will probably have to pay for your coal on delivery, cash or cheque, maybe some now carry card-readers but I wouldn't count on it. Buying by the tonne, Or even half-tonne, rather than one or two 50kg sacks, might get you a wee discount, if you have the storage.
I say yet again, you need a spark guard. Absolutely essential when your fire is first set and in flames, can be moved once it settles into a red glow. Some coal is sparkier than others, it's caused by gas within the coal and unpredictable, and it makes your coal explode. I'll never forget the night a red-hot, burning piece of coal shot 12 feet across the room, barely missing dh, and scorched a hole in the carpet. And we'd had fires for decades, still made a stupid mistake when we didn't put the guard up, having refuelled. Get one that fits more or less flush to your fireplace, I've seen some that are just wee fences and bugger-all use really.
If there's anything else you need to know, once you've had your chimney cleaned, feel free to PM. i'll keep this on my "watch" list, but it might slip down a bit. :)