Which handles a central A/C?

The DuroMax. Its 10,500 running watts and 13,000 peak watts through the 14-50R outlet can start and run central A/C. The Generac's 8,000 running watts with PowerRush is usually too tight for central A/C.

Is the DuroMax worth $400 more?

Yes if you need propane, a 50-amp outlet, or central A/C. If you only run a fridge, lights, and a few fans, the Generac at $899.00 covers it for less.

Which runs longer on a tank?

The Generac, up to 11 hours at 50% load on 7.9 gallons. The DuroMax runs 8.5 hours at 50% load on 8.3 gallons.

Do both shut off on carbon monoxide?

Yes. The DuroMax uses CO Alert and the Generac uses COsense. Both cut the engine when CO levels rise.

Which is easier to move?

The Generac. It weighs about 200 lb with never-flat wheels and a fold-down handle. The DuroMax is 240 lb dry.

Can I connect either to a transfer switch?

The DuroMax yes, through its 14-50R 50-amp outlet. The Generac GP8000E has no 50-amp outlet, so it is limited to corded connections.

DuroMax XP13000HX vs Generac GP8000E Portable Generator

Buy the DuroMax XP13000HX if you need to run central A/C or a whole panel through a 50-amp outlet, or want dual-fuel flexibility. Buy the Generac GP8000E if you want a simpler gasoline-only unit at a lower price. As of November 5, 2026, the DuroMax is $1,299.00 at Home Depot and the Generac is $899.00 at Amazon, a $400 gap.

Today the Generac GP8000E Portable Generator costs $400.00 less at its best price.

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