Thank you and best wishes to you and your family too.
My husband has hep c but not hemochromatosis, but I do know a little about it. First of all, hemochromatosis, although it cannot be cured, can be managed by diet and regular testing -- the damage hemo causes is due to the body's inability to remove excess iron.
In terms of genetics, it's a recessive condition -- that is, just because your husband has it doesn't mean your kids will necessarily have it. (In order for your kids to be at risk, you would have to be a 'carrier' for the hemochromatosis gene, and the likelihood of that is about 1/30.) There is gene testing available for you and your children. You can have yourself tested for carrier status, and if you're not a carrier, you can stop there and rest easy. You can also have your kids tested directly to see if any of them are affected. If detected early, appropriate diet and management can help prevent damage from excess iron stores that come from having hemochromatosis.
Hemochromatosis cannot cause hep c, and hep c cannot cause hemochromatosis, but they are both diseases that damage the liver. Hemo can cause cirrhosis because excess iron stores over time damage the liver; hep c causes cirrhosis because the active virus damages the liver cells, causing scarring that can lead to cirrhosis. Different mechanisms, but they can both seriously affect liver health. Hope that helps, and best wishes to you and your family. ~eureka