I have a Coleman Mach 8 RV AC - 13,500 BTU. This generator alone will not start the AC Compressor. It can run everything else in my AC including the fan, but not the cooling of the AC. My solution is to install a softstart to the AC, there are YouTube videos showing this generator able to start a 13,500 BTU AC when it has a softstart on it.

Made in China and is the same generator as the Pramac iq3500 in Europe. It is an excellent quality generator with very quiet operation. A little heavy so a dolly or wheel kit is mandatory. Im not sure why they decided to forgo the wheels as standard equipment. This has the same internals as the H.F. 3500 Predator down to the Hemi head 212cc engine made by loncin.

What is the dB rating on this unit?

50 dB at 1/2”. That is what the manufacturer is saying. Without a standard it is worthless information. I can claim mine is 47 dB but that measurement is at 30’ from the quietest side another claims 57dB but that is at 10’ Reporting the max reading from any side. Guess which one is quieter? Every generator is 0dB if you stand far enough away.

Can you parallel this with a 2200 series?

A Generac GP3500iO cannot be paralleled with a GP2200i and should only be paralleled with another GP3500iO.

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⚡ Power up your adventure—quietly, efficiently, and effortlessly!

CARAVAN READY POWER - Directly connect to your RV and run air conditioners up to 15,000 BTUs with confidence.
WHISPER QUIET PERFORMANCE - Operate up to 50% quieter—perfect for noise-sensitive environments and peaceful camping.
PARALLEL USB CONNECTIVITY - Double your power by linking two units or charge devices on the go with USB outlets.
LIGHTWEIGHT PORTABLE DESIGN - Weighing just 33.7 kg, it’s 25% lighter for effortless transport and setup.
POWER RUSH TECHNOLOGY FOR INSTANT POWER - Get 50% extra starting capacity to power your toughest devices without a hitch.

The Generac GP3500iO is a gas-powered inverter generator delivering 3500 starting watts with advanced PowerRush Technology for 50% extra starting capacity. It operates up to 50% quieter and is 25% lighter than comparable models, making it ideal for RV users and noise-sensitive environments. Designed to power caravan air conditioners up to 15,000 BTUs, it features USB and parallel outlets for versatile connectivity and enhanced portability.

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Manufacturer	Generac
Part number	7128
Item Weight	33.7 Kilograms
Product Dimensions	50.04 x 41.91 x 41.66 cm; 33.7 kg
Item model number	7128
Size	19.3 x 16.9 x 16.4 inches
Color	Orange-Coloured
Power source type	gas-powered
Voltage	120 Volts
Wattage	3500 watts
Item Package Quantity	1
Special Features	Portable
Included components	Generac 7128 GP3500iO Portable Open frame Inverter Generator
Batteries Included?	No
Batteries Required?	No

GeneracGP3500iO Portable Electric Open Frame RV Friendly Inverter Generator, 3500 Starting Watts with PowerRush Technology

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