I moved to new location and there is limit in space in this unit for washer and dyer, they used combo washer/dryer (one single unit) steem energy save, we didn't like it and after 4 months of use the dryer not working LG model , we like to replace this with new washer/dryer we don't have much space(has to be on top of each other) but that is not big problem compare to this closet doesn't have air vent for dryer or gas pipe.
There is water heather on the back wall has air vent and gas pipe, is it posible to run a pipe through wall and use the T pipe to use same vent with wather heather? Is this safe to do?
PLEASE HELP,, I never done this before but I am very good to work around house and make it happened my concern is safety . THANK YOU

NO you cannot connect the water heater vent with the dryer vent.

Due to the lint output of a dryer you cannot by code vent a dryer threw an existing vent the dryer will have to have its own separate vent to the outside of structure.