Reznor heater, to many options!

[signcrafter]

After my other thread I went to the reznor site to see if I could narrow down a model number and get a heater ordered. But they have so many different lines and options. Ubx, ubz, udx, udz, uez, etc. I'm just looking for a natural gas heater in the 60-75,000 btu range. Venting is something I still need to figure out but can do pretty much whatever I need to. Can go straight up threw roof or out side wall and I'm planning on putting it in the corner so will be a short run. So if these are anything like water heaters then I assume I dont need a power vent since it's a short run? Or is there another reason I may want a power vent? Any other advice on which reznor to get, or which line of reznor I should be looking into? Thanks.

Unit Heaters | Reznor HVAC

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[PoorUB]

Reznor UDX for typical residential shop use.

The UBX and UBZ models have a squirrel cage blower to connect duct, or have a longer throw of air. The UBX is separated combustion.

The UDZ is much like the UDX other than separated combustion which for most is not necessary.

The UEZ is a high efficiency, 93% unit similar to the UDZ which rough 80% efficiency.

 

[signcrafter]

Thank you.

 

[RAB]

I’d go with a power vent, not natural draft. If you use any sort of extraction fan in the shop or make up air it can throw the units combustion out I have seen it before.

 

[PoorUB]

I’d go with a power vent, not natural draft. If you use any sort of extraction fan in the shop or make up air it can throw the units combustion out I have seen it before.

All Reznors are power vent. i don't know any one that builds a natural draft unit heater any longer.

You can find some free standing heaters or wall mounts that are, like from Cozy or Empire, but no heaters like Modine or Reznor.