What have you noticed in regards to increased fuel consumption? Is it just a slight increase? Double?
Also, is it harder to hold temp with it emptier (like, if you're only cooking for a family of 3 or 4, as opposed to a crowd)?
I'm also thinking about the 18 vs 22 for a near-future purchase.
It does use more fuel, I say about 75% of the bag over 50%. Not that big of deal since I buy charcoal when it's on sale like it is at Home Depot now. I don't believe it's harder to hold temps. But I haven't had it much to compare. But I appreciate the larger space over the 18".