Exactly what power did the Ring of Fire give to Gandalf?

[Legate of Amon Lanc]

I am afraid I'm going to agree with both Boro and Mith here

First, I think the Ring increased the power of the wearer to manipulate with fire, as Mith said, it is with no doubt that the other Rings gave their bearers certain powers to manipulate with their realms.

But second and I think mainly, is what you have agreed on - in the "fire" terms - rekindling the spirits of others, and of the bearer. Gandalf's aid to the West was in supporting the resistance against Sauron, he did not use his power as Saruman did - or wanted to: he walked among people, here and there, and where the power of the Westerners was weakened, he rekindled the spirits (I just recall the same happened at Pelennor fields, literally). Remember Théoden (though it was after his re-birth), I can't think of a better "rekindling effect". It does not matter to what scale the powers came from Gandalf himself and to what scale from the Ring - actually, the Ring was more like "boosting" the owner's abilities, and here the Ring probably gave Gandalf the strength to do good (hence the temptation he speaks about when mentioning the One Ring - he knew that the One could maybe give him even more strength than Narya, but he was aware of the fact that it would lead him to falling to the Ring).

In the books, there are many moments when, I believe, we can see the work of Narya (for example I think the battle with the Nazgul at Weathertop, on Caradhras, against the wolves near Moria, meeting with Aragorn&co. in Fangorn, battle with the Nazgul attacking Faramir, stopping the Witch-king, response to Wormtongue etc), but it's never shown explicitely - as with all the Elven Rings, and with Narya the most, it remains hidden. In all the books, I believe, there is only one moment when we are told that the Ring is used, and that's the battle with the Balrog: "I am a servant of the Secret Fire, wielder of the flame of Anor." (though even here it's not explicite, but quite easily understandable from the words)

Originally Posted by Lord Halsar

Well, i always thought that it may have given him resistance to fire aswell.

I believe not. And please, I hope no one here is thinking in the cathegories of D&D or similar games. Narya was not a "Ring of Fire Resistance +70%" or anything like that. Concerning the fire itself, your argument about the balrog probably won't stand, since even before they fell, Gandalf was burned. And since we are not playing the 70% resistance here, the only possibility would be to protect from the fire at all, which is refutated by that.

Originally Posted by The White Rider

Long I fell, and he fell with me. His fire was about me. I was burned.

[Lalwendë]

There are definitely links between the ring and the element, but as ever in Tolkien, they are subtly and poetically drawn. So both Boro and Mithalwen are right to my mind - there is the poetic and inspirational interpretation of 'fire' as courage and morale-boosting, and also the real physical element of fire.

The poetic may include Gandalf's ability to inspire and to lead, but also the spiritual element within the world he lived in. I don't think it's any mistake that he held the ring of Fire and that he was the only character we know of who went right back to Eru (we think) and was sent back whole again; was the fire within the Secret Fire?

The physical can be seen by anyone in his ability to make fireworks of course!

The choice is up to the reader. I'm having both

The next interesting question is as Mithalwen says, whether or not the Ring accentuated latent powers or created them within him? And following on from that, was the Ring created with some kind of foresight of his arrival in Middle-earth? What did Celebrimbor and Cirdan know about?

[The Might]

I guess it just was supposed to somehow enhance his already existing powers, and help him achieve his aim.

"Warm and eager was his spirit (and it was enhanced by the ring Narya), for he was the enemy of Sauron, opposing the fire that devours and wastes with the fire that kindles, and succours in wanhope and distress; but his joy, and his swift wrath, were veiled in garments grey as ash, so that only those that knew him well glimpsed the flame that was within. " ~ Unfinished Tales, The Istari

Guess Legate pretty much summed up all I was going to add.

[Knight of Gondor]

I believe that it enhanced his physical capabilities (the instances already mentioned by many, such as the fire used to fight the Nazgul or wolves, but also the "bright flash" and smell of gunpowder when the Goblins were attacking in The Hobbit), but its greater power was in kindling the hearts of men. Hence, inspiring the hope that he did during the siege of Gondor. But I believe its greatest potency was displayed in events such as the healing ("kindling") of Theoden to go to war, or even inspiring an otherwise uncourageous hobbit to run out his door and join a band of dwarves to Erebor.

Let us not also forget that it gave Gandalf insight into the minds of Galadriel and Elrond, the other bearers of the rings.

I thought that Appendix B stated more about the rings, so I shall go and read it tonight.

[The Might]

Still strangely it seems only few felt the power within Gandalf, enhanced by Narya, at least before his return as Gandalf the White:

"...but his joy, and his swift wrath, were veiled in garments grey as ash, so that only those that knew him well glimpsed the flame that was within. "

[Legate of Amon Lanc]

Originally Posted by The Might

Still strangely it seems only few felt the power within Gandalf, enhanced by Narya, at least before his return as Gandalf the White:

I think that reflects the fact that to most, he looked like a simple old man clad in grey. If we use one sentence right from the very beginning of the Hobbit:

Originally Posted by The Hobbit

All that the unsuspecting Bilbo saw that morning was an old man with a staff.

I think this is what most people saw. But on the other hand, the fact that they could not recognise the power in Gandalf, does not mean that they could experience its effects. As it is said about Gandalf even before he got the Ring, in Valinor

Originally Posted by Valaquenta

for though he loved the Elves, he walked among them unseen, or in form as one of them, and they did not know whence came the fair visions or the promptings of wisdom that he put into their hearts.