I have looked into this as I am unsure as to refit my lpg for this winter , I think Nath has a good setup because he doesn’t use the full 500 and is insulated he has a good starting temp at switch on , this is where most others are falling down as they empty the tanks daily and will have a very low start temp.
This is my problem , I have and use close to 350 a day , fitting a bigger tank is not an option as I drive a noddy van !