Liquid Propane vs Natural Gas Fuel Source for Kohler Generators

As many homeowners know, there’s a big debate over whether to use a liquid propane generator or a natural gas generator. To be straight to the point on this one, in most instances whether your generator gets installed with natural gas or liquid propane is more a matter of whether a homeowner has access to natural gas or not. However; there are some advantages to propane generators you may not have considered.

kohler home generator installed outside of home

Advantages for Natural Gas-Fueled Home Generators

Natural gas is generally the preferred fuel source of a gaseous standby generator because:

  1. It’s usually less of an initial investment because there is no need to buy or rent a tank

  2. It should theoretically be a practically endless supply

  3. The fuel itself tends to be less expensive

propane fuel source for home generator

Advantages for Propane-Fueled Home Generators

But here’s what you may not have considered when it comes to propane generators:

  1. Your fuel source is independent of the utility supply. If there was ever work being done by the utility provider or major issues on the street, you wouldn’t be affected by it.

  2. Liquid propane actually has higher fuel energy density, which means you get more power out of the same size generator. If you see a rating of ‘20kW’ or whatever value, that is pretty much always the rating on propane. If the same unit was installed with natural gas it would be more akin to 18kW. This means you can power more with the same generator, potentially avoiding the need to upgrade to a more expensive unit.

  3. You can always convert to a natural gas generator later if it is installed on your street and keep your same unit. The changeover is very simple and besides whatever pipe-fitting they’d have to do on your property, the work to the generator itself only takes a few minutes.


We help as much as possible to coordinate with the pipe-fitter and propane company on new installations to save you the hassle. We work with reputable plumbers who we’ve had a positive experience with to make sure the job gets done right without you having to coordinate too much.

Do you already have an existing liquid propane company or preferred pipe fitter? We’re happy to work with your existing relationship and do our best to help them out.

Looking to swap liquid propane companies? We can often assist in getting you set up with someone more reputable if you’re unhappy with your current contract. Some of our liquid propane companies will even offer to buy out your existing tank(s) from the other company or help in replacing them.




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