I am sorry that your father is not doing well. Heart failure is a tricky problem, especially when people get uncomfortable with shorthess of breath. I understand that the CHF
website may have told you stories of people doing fine with terrible hearts. Please remember that every patient is different. Part of the problem with your father is probably his kidneys, which you may understand are very important when you have heart failure. Many of the drugs we give for the heart make the kidneys work harder to pee out the excess fluid that gets into the lungs. If the kidneys are not doing well, they will not respond to the medications, and there is no other way to get the fluid out of the lungs if the kidneys are not working.
If the cardiologist at the hospital told you that your father is in the end stages of heart failure, I am sure it is true. What is important now is that he is comfortable and not in pain. Hospice will have other ways to help him make him comfortable since the heart medications are not working well anymore.