Kaminen som bokstäverna kom fram i Filosofens sten var i köket:
Something came whizzing down the kitchen chimney as he spoke and caught him sharply on the back of the head. Next moment, thirty or forty letters came pelting out of the fireplace like bullets.
Harry Potter and the Philosopher's Stone - p.35 - Bloomsbury - Chapter 3, The Letters from No One
Denna eldstad var uppenbarligen inte ombord.
Det gick dock att Weasleys kom upp bakom eldstaden i vardagsrummet:
From the other side of the living-room door came the sounds of the three Dursleys scrambling, panic-stricken, across the room.
[...]
Loud bangings and scrapings were coming from behind the Dursleys' boarded-up fireplace, which had a fake coal fire plugged in front of it.
Harry Potter and the Goblet of Fire - p.42 - Bloomsbury - Chapter 4, Back to The Burrow
Det här är en helt annan eldstad till den i köket, som förblir obegränsad till Phoenix-ordningen
WHOOSH. With a clattering, a whirring of wings and a soft fall of dust, a fourth owl came shooting out of the kitchen fireplace.
Harry Potter and the Order of the Phoenix - p.36 - Bloomsbury - Chapter 2, A Peck of Owls
How did the letters get to Number 4 anyway? I mean, the first letter probably was transported by the normal post, but as there is no post on Sundays, this can't have been the case later.
(Strikt sett är det en fråga i taget på den här stapeln, men eftersom det är ett svar på ett ord (eller ett namn) ...)
Hagrid
'I'm - er - not supposed ter do magic, strictly speakin'. I was allowed ter do a bit ter follow yeh an' get yeh letters to yeh an' stuff - one o' the reasons I was so keen ter take on the job -'
Harry Potter and the Philosopher's Stone - p.48 - Bloomsbury - Chapter 4, The Keeper of the Keys