Do you want me to move this to Home & Garden?
I think after the first reply GD deserves this one

Do you want me to move this to Home & Garden?
Have a read of this article for an overview of different portable heating systems.
I have an oil killed radiator with thermostat for my office as I can sometimes be working late and leaving the heating on makes the bedrooms too hot. I'm sure it would get expensive as a primary source of heating but for my needs it is fine and I have not noticed a bump in the bills.
I like that flooring.
Erm my nan had a single rad put into her conservatory through a brick wall run would probably be longer than that, cost about £250 iirc including rad.
She did have quite a few issues afterwards with the boiler not having enough grunt to utilise the extra rad though. Guess if you've got an old boiler it might be worth getting it double checked it's capable of a bigger run first.
We have a fairly new combi boiler so I think it should be ok. But will look at getting it checked out. If the cost will only be around £250 I will be booking a plumber this week to install itI expected a new radiator to cost double that to install.
Did you report this crime to the radiator police?
I've sometimes thought one of these oil filled radiators could be useful, given we have economy7 and storage heaters.
I wonder how hard it would be to feed a pipr into this room from my existing central heating?
well maybe fitting a new radiator maybe the better option.
I wonder how much it would cost to fit a new rad only the wall (just past the bucket and mop)
We have a fairly new combi boiler so I think it should be ok. But will look at getting it checked out. If the cost will only be around £250 I will be booking a plumber this week to install itI expected a new radiator to cost double that to install.
There should be an independent heating system with separate temperature and on/off controls.
gov.uk said:• The building’s heating system must not be extended into the conservatory or porch.
Calor portable heater? The old style with ceramic plates are most efficient but you can get real fire effect now that look quite nice.
Can you drill through that wall? if so id just run a couple pipes through there and fit a rad. If you do some measurements you can do a heat loss survey for that room to find the size you need