I have so many BBQ's and house parties where my guests end up out in the garden that a patio heater for me was a must have! I did almost just buy a small table top patio heater as they were a lot cheaper to buy but i didn't think they would really be powerful enough to really heat a large area of my garden so i invested in a bigger and better heater which was this Edelweiss model.
I loved the stainless steel modern look it has about it first of all, it is important to me that my garden looks stylish and i didn't want anything that would be an eyesore. I was very impressed by the heating power it had too, especially if you are standing or sitting directly beneath it. It heats an area of up to 22 square meters so all of my guests feel the warmth! You will need a bottle of patio gas to get this heater going which costs around £20 - £30 depending on where you buy it, but it is well worth the buy as i can now stay out in my garden for a lot longer even when it gets chilly.
I also think the heater looks lovely all light up on a night time especially with a nice BBQ going too! I'd definetely reccomend buying a waterproof cover for your heater as well for those winter months unless of course you have room in a shed or something similar to store it in. Argos usally sell the covers at a reasonable price.
This heater itself usually costs £180 which is quite expensive but if you shop around online you may be able to get one for around £160 as i've seen a few.
Height: 2.24m. Heat output: 5-13Kw.