Tankless Water Heater Inlet Size Question
We have decided on purchasing the Rinnai RU98i tankless water heater (natural gas). Our builder has told us that we have to have a 1/2" gas inlet. However, this model has a 3/4" inlet.
I checked another brand it, too, has a 3/4" inlet. I've also briefly searched and learned that a reducer can be placed. However, the builder said that it will reduce the flow.
I have no plumbing background (clearly) and was wondering if anyone can help me understand what direction I need to go.