Sorry for breaking the news, but no, they were not
Shermans didn’t burn any more easily than other tanks of their generation, but the wet stowage did reduce the number of fires drastically — though consensus seems to be that this was mostly due to where the ammunition was stowed (on the hull floor) than to the water-filled double walls of the bins. Now to find that data again … Ah, yes, Steven Zaloga’s Armored Thunderbolt, page 238:
Yes. But the really good ones are expensive and/or hard to find, and probably really only of interest if you’re fairly deeply into Shermans
For a good, and cheap, introduction to Shermans, try Squadron/Signal’s Sherman in action:
[ATTACH]508929[/ATTACH]
It’s is pretty old (1978, off the top of my head) but it’s still a good overview with tons of good photographs illustrating the various types of Sherman in action.
But you can also find a lot of good information online. Probably the two best sites are The Sherman Tank Site for a general introduction, overview, etc. and the Sherman Minutia Website for all those little details that modellers care about

It’s interesting to note that in Sicily and Italy [where much of the fighting was with dry-stowage Shermans], 81 percent of U.S. tanks that were penetrated by gunfire burned, while in the ETO [European Theater of Operations, that is, France and Germany] only 53 percent burned—an indication of the value of the wet stowage program.

[ATTACH]508929[/ATTACH]
It’s is pretty old (1978, off the top of my head) but it’s still a good overview with tons of good photographs illustrating the various types of Sherman in action.
But you can also find a lot of good information online. Probably the two best sites are The Sherman Tank Site for a general introduction, overview, etc. and the Sherman Minutia Website for all those little details that modellers care about

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