What's BEST for Heating Railcars? | High vs Low Pressure Steam

What's the best method to heat and offload tanker rail cars? Do you need a high pressure boiler? Or does a low pressure steam generator get the job done just as well?
High pressure steam boilers come with high installation costs, often times require a certified boiler operator, and involve more safety concerns than the low pressure alternative. And do they actually heat tanker railcars any faster?
0:00 Introduction
0:29 SteamFlo Specifications
0:40 High Pressure Boiler Specifications
0:57 Pressure Ratings of Railcars
1:18 Steam Connections and Setup
1:38 Scorching Tankcar Contents
2:26 Installation and Regulations for High Pressure Boilers
2:54 Steam Safety
3:21 Heat Transfer When Using Steam
3:53 Low Pressure vs High Pressure Test Results
4:18 Conclusion
Learn more about Railcar Steam Heating here: sioux.com/railcar-tank-car-heating
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[@FARMERJARED14]

So this is just required for unloading not while in transport?

[@FARMERJARED14]

And with the high pressure you can do multiplies right?

[@brentcollins4084]

If you put the steam hose on the outlet and tbe condensate return on the inlet what would happen? Aren't those two pipes basically just like a crazy straw in the railcar? It shouldn't matter how you hook up the hoses underneath. Right?

[@427k7]

Rail cars have inlet (steam) and outlet (condensate) marking. Some rail have two set of coils, so make sure you line inlet/outlet per coil.