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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Generac GP3500iO Portable Electric Open Frame RV Friendly Inverter Generator, 3500 Starting Watts with PowerRush Technology

Generac GP3500iO Portable Electric Open Frame RV Friendly Inverter Generator, 3500 Starting Watts with PowerRush Technology

Product ID: 604818396

Details

Brand
Generac
Fuel type
Gasoline
Power source
gas-powered
Recommended uses for product
Camping
Wattage
3500 watts

⚡3500W peak power boost

🔇50% quieter operation

🛻25% lighter portability

$5028.78

Duties & taxes included

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Description

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

CARAVAN RV READY - Directly powers caravan air conditioners up to 15,000 BTUs—camp in comfort, no compromises.
WHISPER QUIET PERFORMANCE - Up to 50% quieter than competitors, perfect for noise-sensitive camping and residential use.
LIGHTWEIGHT PORTABLE DESIGN - At just 74 lbs and 25% lighter, it’s your go-anywhere power companion without the backache.
PARALLEL CAPABILITY USB OUTLETS - Double your power by linking two units and keep devices charged with convenient USB ports.
POWER RUSH TECHNOLOGY FOR INSTANT POWER - Kickstart heavy-duty tools and RV ACs with 50% extra starting watts—do more without the bulk.

The Generac GP3500iO is a gas-powered inverter generator delivering 3500 starting watts and 3000 running watts with advanced PowerRush technology. It’s engineered for quiet operation, lightweight portability, and RV-friendly power, capable of running most caravan air conditioners up to 15,000 BTUs. With parallel connectivity and USB outlets, it’s the versatile, reliable power solution for camping, outdoor work, and emergency backup.

Specifications

ASIN	B079KRLHBT
Additional Features	Portable
Brand	Generac
Brand Name	Generac
Color	Orange-Coloured
Customer Reviews	4.5 out of 5 stars 343 Reviews
Engine Displacement	418 Cubic Centimeters
Engine Type	4 Stroke
Frequency	60 Hz
Fuel Type	Gasoline
Fuel type	Gasoline
Ignition System Type	Electronic
Included Components	Generac 7128 GP3500iO Portable Open frame Inverter Generator
Is Electric	No
Item Dimensions L x W x H	50L x 41.9W x 41.7H centimeters
Item Weight	74.3 Pounds
Item weight	74.3 Pounds
Manufacturer	Generac
Manufacturer Part Number	7128
Material Type	Steel and plastic
Model Name	GP3500iO
Model Number	7128
Output Wattage	3500
Power Source	gas-powered
Power source	gas-powered
Recommended Uses For Product	Camping
Recommended uses for product	Camping
Running Wattage	3000 Watts
Runtime	11 hours
Starting Wattage	3500 Watts
Tank Volume	2.37 Gallons
Total Power Outlets	2
UPC	696471072020
Voltage	120 Volts
Wattage	3500 watts

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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$5028.78

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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