Natural gas space convertion

[Jose Canario]

Hello all, I have a 3 family house in New Bedford,MA and I would like to change my gas space heaters to a forced air system. Does anyone know where can I get help/more information about this? I know a lot of multi family houses in this area have space heaters and a lot of houses get converted to forced air, so I assume this is the best and most effective way to go. I would take any suggestions and referrals, thank you!...