Clean looking Heat Only Option

[biketopia]

I'd like to keep the underhood area clean and uncluttered looking on my truck build. I like the look of just few hoses passing through to an under-dash unit like Restomod Air or Vintage Air, but don't know if A/C is in my future with the truck.

Does anyone make a heat only option that works with our trucks? I guess I could always buy and install an option with A/C, and then it's there if I ever wanted it, but also trying to control costs.