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Doug33's avatar
Doug33
Explorer
Oct 03, 2013

30 lb vs. 20 lb propane tanks

The PUs that I owned many years ago all had single 20 lb propane tanks. When I bought my first TT in 2006, it had two 30 lb tanks. When I bought my new TT recently, it has two 20 lb tanks, even though it is a much bigger unit.

I'm curious why it seems that most manufacturers have decreased the size of the propane tanks. I can think of a few reasons, but was curious what your take is on this:

1) Newer TT hot water heaters can run off electric and not just propane.

2) Weight considerations

3) Space considerations on the tongue

4) Furnaces are more efficient?

5) 20 lb tanks can be interchanged at Home Depot/Lowes/etc

6) Cost

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