I've had one for the past 5years, installed in a bungalow, no chimney. I knew nothing so asked 3 installers which they would recommend and buy themselves. They all said Clearview so that is what I have and it's brilliant.
Its a Pioneer 5k multifuel burner which has space under it to store kindling, very useful. I didn't try and find a cheap installer but used an experienced, reputable company and it was worth it for the peace of mind.
Initially I burnt some seasoned wood which I stored in a woodstore outside and bought some unseasoned wood too which I kept for 2 years outside, also bought some kiln dried wood for immediate use.
Not impressed really with the seasoned wood or the wood I seasoned for 2 years but very impressed with the kiln dried which I kept in the garage. Ok a bit more expensive but worth it for easy lighting, warmth and less mess. I've got rid of the outside woodstore and keep kiln dried in the garage which is delivered by an internet company via a pallet. I buy it in the summer as it is cheaper and there are deals. I don't burn varnished or painted wood.
My chimney sweep is always impressed by how clean my flue is after a winter of burning the stove for 5-6 hours each evening. It has to be cleaned annually due to the requirements of the house buildings insurance policy.
Get smokeless fuel too which is suitable for multifuel stoves [unsuitable fuel will damage the flue] so you can bank the fire up when you go to bed and come down to a warm room in the morning.
Here I regulate the heat by opening the door in the main room so the heat goes around the bungalow to a greater or lesser extent as stoves are not that easy to regulate. But the result is I need no other heating most of the time and my heating bills therefore are low.
I'd say use a local established company who can give you advice and buy a stove [preferably a multiburner] through them - so you have come back and also future maintenance or parts. If you are not an expert on the world of wood burners you cannot really shop around for a cheaper installation and a cheaper stove and a cheaper flue because it is a science and safety needs to be taken into account too. A good installer will also provide a carbon monoxide alarm too.