I'm afraid I am somewhat limited in scale. It is...one of those spells that we can get when we select our attunement.

Unfortunately, we would need a pack of them, to keep a place warm, since I can only warm so much. [ A cubic foot. Oddly, Silco doesn't seem to feel the cold, or he isn't showing it. Then again, he does appear to be wearing layers upon layers of clothing. Not bundled up, but certainly wearing enough to stay warm. ]

You'll just have to enjoy that while it lasts. Hopefully it will warm you up, yes? Then, we can talk about what you're going to do to help us... score a victory.