No advice for an actual Rayburn, but I used to have hot water and heating from a log burner.
To light it, you need a bed of newspaper scrunched up, some thin bits of wood called kindling, and maybe a firelighter. Put a match to the newspaper, the long ones are the best because you can direct the flame underneath the kindling.
Once the kindling is well alight you can add bigger bits of wood or logs, and or coal.
When you have a good hot fire, you then have to adjust the flue/air intake to regulate the speed of burning. This will be a matter of trial and error, because burners tend to be individuals, and it will depend on things like the wind direction and outside temperature.
You are aiming for a burn that is slow enough to conserve fuel and not need topping up too often, and hot enough to keep going and to actually heat the water and radiators.
At night you will want to bank it up, I used to add a few logs and then almost cover them with ash from the ash pan, and slow the burn right down, almost close the regulators so there is not much air getting through. Hopefully this will keep things warm overnight without burning all the fuel.
In the morning, if your fire is still going underneath the ashes, you have to give it a riddle, or maybe poke the poker in to let in more air and wake it up. This is when you add more fuel.
And so on throughout the winter.
You will probably have to empty the ash pan at least once a day.
This all sounds a bit daunting written down, but you will get the hang of it. Its like having an extra child or pet. You will soon know when you can get away with things like only using half a firelighter, or when it needs extra fuel to get through the night.
Things can go wrong, if the water boils in the pipes, which will sounds like a rushing, bubbling with maybe knocking from the heating. Turn on the hot water taps to get rid of the overly hot water and rake some of the fire out into the ash pan to help it cool. I've only had this happen twice, and both times it was me over fuelling the fire before going to bed that caused it.
If you have a chimney fire, this sounds like a waterfall in the chimney, with maybe flames coming out of the top or burning embers coming out, you can sometimes put out a small one by putting hot water on the fire. The steam will go up the chimney and put it out. Hopefully. If you try this you must use hot water, cold could crack the firebox and completely bugger the whole system. This is not really recommended btw, the official advice is to get out and call the fire service. But I have dealt with small chimney fires in this way.
Any way, best of luck.
Edited to add, best to get the dog and yourself some nice warm jumpers, hot water bottles and wool socks ect until you know what you are doing. I grew up with this type of arrangement, but it will be a culture shock to you. An emergency electric heater wouldn't be amiss either.