Firman WHO3242 Generator Natural Gas Conversion-- Dual-Fuel to Tri-Fuel. Completely Reversible.

This video shows how I converted my Firman WHO3242 Dual Fuel generator to also run on natural gas (in addition to gasoline & propane). The conversion required no cutting or drilling so it is completely reversible. I probably could have used this conversion method on any of the Firman WHOxxxx dual-fuel generators, like the WHO3041, WHO3042, WHO2942, WHO3342, or WHO3344.

This video also shows how I added an exhaust extension so that I can safely run the generator locked inside my garage with the exhaust vented outdoors.

Because natural gas has less energy-density than propane, and because the WHO3242's computer is not programmed to automatically turn off the electricity-generating inverter when running on lower-energy natural-gas, I will have to manually make sure that I keep the wattage load below about 2430W (i.e. 81% of its 3000W propane running wattage rating) in order to prevent the engine from running in a bogged-down state. But 2430W should be enough for me to run my refrigerator (370W), gas furnace fan (~400W), 4 laptop PCs (~25W each), Internet modem & router (29W), computer monitors (~27W each), gas-oven (2W), and some other low-power devices like smartphone chargers, LED string lights, etc.

PARTS USED IN THIS VIDEO:
Partzen (Garretson-Impco style) Low Pressure Regulator:
https://amzn.to/40iDRSV

Nash Hose Block Power Valve (3/8” NPT x 3/8" barb):
https://www.amazon.com/dp/B07BF4HP9Q?...

5’ of 3/8” Fuel Grade Hose:
https://www.amazon.com/gp/product/B0B...

3/8” Barbed Tee/Wye:
https://www.amazon.com/Fittings-Stain...

3/8" Hose Barb to 3/8 NPT Fitting:
https://www.amazon.com/Brass-Fitting-...

¾” MIP to 3/8” Male Flare fitting (Bought at Ace Hardware):
https://www.acehardware.com/departmen...

15’ of 3/8” ID Natural Gas Hose with Quick-Connect Fitting:
https://www.amazon.com/gp/product/B0B...

Exhaust Extension:
https://amzn.to/3PqkGAi

Magnetic Dipstick: (Not shown in video but I added this to remove new-engine-break-in metal shavings from oil.)
https://amzn.to/4a6uDwi
https://amzn.to/4fPtGtD
https://amzn.to/3Pq44ZC

Wattage Meter (Not shown in video. I used this to measure the wattage of appliances, but it has a 1650W limit, so it can't be used to measure the output of a fully loaded 2650W generator. It will break above 1650W.):
https://www.amazon.com/gp/product/B08...