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Converting a Portable Generator to Propane Gene Nelson, Ph.D. KE5HXX 01 February 2014

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Page 1: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Converting a Portable Generator  to Propane

Gene Nelson, Ph.D.KE5HXX

01 February 2014

Page 2: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Presentation Outline

• Three Significant Factors• Do you already have a gasoline‐powered 

generator?• Are you planning to purchase a generator? 

Strong recommendation to purchase a(n)  inverter generator(s)

• Other necessary items• Hardware demonstrations

Page 3: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Three Significant Factors

• CARB, The California Air Resources Board• Carbon Monoxide• A technology to avoid

Page 4: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

CARB, The California Air Resources  Board

• Regulates the purchase of fuel‐powered  generators – and some generator accessories 

in California.• As a result, many items are not allowed to be 

sold within California. Some items may not be  shipped to California

Page 5: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Carbon Monoxide CO

• A colorless, odorless, toxic

gas that is  produced during operation of internal  combustion engines of electric power  generators

• All

electric power generators must be  operated outside.   CO   entry into a structure 

should be blocked by solid doors & windows.

Page 6: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

A Technology to Avoid

• Avoid battery‐powered inverters producing  modified sine‐wave single‐phase power.

• Most homes and residences are normally  powered by center‐tapped transformers 

which allow the ground to be tied to the  neutral at the power distribution box.

• Image:PhysicsForums.com

Page 7: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Why Propane Fuel?

• Indefinite storage of propane cylinders.• Stabilized gasoline only good for 12 months.• Supplies less likely to be exhausted during a 

large‐scale disaster.• Increased reliability when used as fuel for 

internal combustion engines.• 20# cylinder = 5 gallons of gasoline.• Always purchase at least 2 storage containers.

Page 8: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Propane 101

• Learn more about propane via this  informative website:  

http://www.propane101.com/index.htm

Page 9: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Propane – Powered Generator 1:

• Over 1 week backup energy supply for Mount  Lowe radio equipment, including SLOECC 

repeaters.

Page 10: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Propane Powered Generator 2:

• Target store in San Luis Obispo on Los Osos  Valley Road.

Page 11: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Propane – Powered Generator 3:

• ECC‐9 ‐

American Red Cross Chapter for San  Luis Obispo County.

• Uses propane‐powered 8 kW Generac  generator to provide backup power for  location, including amateur radio equipment.

Page 12: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Case 1: Already own gasoline‐ powered generator

• Example: Smarter Tools ST‐GP4750EB 4.75 kW  generator.

• $400 from Costco.

Page 13: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Purchase US Carb Tri‐Fuel Kit

• Kit cost approximately $200.• Cut frame

Page 14: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Attach propane regulator and  power block to frame

• Regulator reduces propane pressure so that  engine may use as fuel. Also includes priming 

button to purge air from system.• Power block functions as throttle for system. 

Mixture should be lean at typical power  demanded from generator.

Page 15: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Propane supply 

• Includes 20# tank, preferably with fuel level  indicator.

• Hose to connect from tank to regulator.

Page 16: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

We’re not done yet…..

• Secondary Muffler:

Page 17: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Secondary Muffler Adapter

Page 18: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Secondary Muffler Assembly

Page 19: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Ventilated Sound‐Absorbing  Enclosure

• http://soundproofing.org/infopages/generato r.htm 

Page 20: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Recommended Approach:  Purchase inverter generator

• Lighter. 2 identical units may be run in parallel• Considerably quieter• Much more fuel‐efficient• Cost premium, but no

muffler or sound‐

absorbing box is needed.• Unit may be converted to tri‐fuel

Page 21: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Ryobi RYi2200

• 2.2 kW Peak  $549.00 at Home Depot• 51 pounds

Page 22: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Honda EU2000i

• 2 kW peak• 45.9 pounds• $999.00

Page 24: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Honda EU2000i  Propane conversion 

• Published on Jun 8, 2013  http://www.youtube.com/watch?v=roKxsfb34PM

• A step by step video showing how to convert your  Honda generator to run off of propane and gasoline. 

It is very easy to switch between the 2 fuel sources  and gives you another level of redundancy. You can  also companion these units together as 2 or 3 

generators. See Wisesales.com for the companion kit  and Central Maine Diesel for the conversion kit. 

PracticalPreppers.com

Page 25: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Another “Game Changer”• The new U.S. Carb “Motor Snorkel”

®

for 

Tri‐Fuel Operation ‐

No frame cutting!

Page 26: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Motor Snorkel®

Availability

• Ryobi RYi2200• Honda EU2000i• Yamaha EF2000iS  and many others at 

http://www.MotorSnorkel.com 

Page 27: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Other Necessary Items

• Heavy duty twist‐lock extension cord• Generator connection box• Optional transfer switch• Load center for higher‐end generators• Antitheft devices• Cover if stored outside

Page 28: Converting a Portable Generator to Propane - …satellitearc.com/images/Propane.pdf · Honda EU2000i Propane ... • Honda EU2000i • Yamaha EF2000iS and many others at ... Converting

Hardware demonstrations

• SLOECC Honda EU200i. Will be run outside

• Questions?• Gene Nelson, Ph.D.  KE5HXX• [email protected]

or 

[email protected]• (214) 455 –

8065 cell