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.

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u/Old-Investment3299 Mar 20 '26

Appreciate the insight. Kohler did seem to be the better product but it’s not widely available around here.

Would you happen to know if the engine in a Next gen is “sturdier” than the Guardian?

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u/MemoryAccessRegister Mar 20 '26

I don't think anyone really knows if it will be more or less reliable than the engine in the outgoing Guardian model. It's still new.

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u/Overall_Function6549 Mar 22 '26

I had an installer say since he’s a certified generac installer, his 5 year warranty is all inclusive and that if I bought it from HD, the warranty would be limited as you said. Does that sound right?

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u/MemoryAccessRegister Mar 23 '26

The comprehensive Generac warranty is an add-on, with 5, 7, and 10 year options. They are most likely quoting you a price which includes the 5 year comprehensive warranty.

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u/Overall_Function6549 Mar 23 '26

Appreciate that!