I have a jacuzzi tub in my basement... it always worked fine but it hasn't been used in recent years... when I tried the water the other day there is no hot water... I assume it's clogged... any help would be appreciated!

How do you get water to the tub? Single handle faucet? If so, the likely culprit id a clogged port on the hot water wide. Turn off the water, pull the cartridge, clean the ports, open the water supply and flush both supply ports, reassemble.