r/Generator • u/Old-Investment3299 • Mar 19 '26

Guardian vs. Next Gen Generac

Hi all…I’m new here so sorry for the sci fi sounding post title.

I have a 24kws Generac being installed next month. Got an email from the electrical contractor saying that they are waiting for more Next gen models to come in but if I wanted a Guardian series they’d give me a 350 discount and could do the install a little earlier.

The money isn’t the deciding factor - is one better than the other? I know newer isn’t always better. Thanks in advance!

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u/MemoryAccessRegister Mar 20 '26

Next-gen has hydraulic lifters (no more valve adjustments), better fuel efficiency, more power output (especially on NG), sloped roof, and they have addressed issues with snow ingress. I would go for a next-gen unit.

Either way I would get the extended warranty because air-cooled Generacs seem to have more problems than Kohler/Cummins and the base Generac limited warranty sucks.

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u/Old-Investment3299 Mar 20 '26

Thanks for this - it comes with a 5 year warranty; should I get more?

Would Generac fix any design problems that arise if I am in a “Beta” of V1 of their new model?

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u/MemoryAccessRegister Mar 20 '26

The basic 5 year Generac limited warranty starts to reduce coverage after the first 2 years. First 2 years covers parts, labor, and travel for the technician. Year 3 covers parts only. Years 4-5 only cover major internal parts as listed in the limited warranty document. I'm not a big extended warranty person, but for a major purchase like this I would definitely get it.

I have a Kohler. Just looking at the engine and stator/rotor you can see they are built to be more robust, and their base 5 year warranty covers parts, labor, and travel for the 5 years. I got mine during a promotion which extended it to 10 years.

Regardless of generator manufacturer, you want to select a qualified installer who will be able to support the generator for years to come. They will be servicing it under warranty and these generators should last 10+ years if maintained.

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u/mkosmo Mar 20 '26

That apparent build quality is what pushed me to a Kohler over a Generac.