Which MH do you have?
Which Brand/Model of Furnace and water heater?
Flexible ducts are attached to discharge plenum on backside of furnace...hose clamped
Plus you have DC wiring to disconnect
Along with propane supply pipe
If you have outside access panel then furnace comes out that way
If just Furnace Inlet/Outlet vents...no access panel...then furnace has to come out inside of RV
Hot & Cold lines/fittings have to be disconnected
DC wiring and AC wiring have to be disconnected
Propane supply line disconnected
Remove frame.....pull WH out
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31