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STF14000 Tri Fuel Generator 14000 Watts (Discontinued)


Honda GX630 OHV engine, 20 HP; Runs on natural gas, propane (LPG), and gasoline; Includes battery, wheel kit, and Drainzit for easy oil changes without the need for tools; 8 gallon fuel tank; CARB/EPA & CSA Approved; 2 year warranty.

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STF14000 Tri Fuel Generator 11700 Watts

The STF14000 Commercial Tri Fuel Generator 11700 Watts is the perfect generator for either Commercial or Residential use. On the job site this unit can power all of your power tools without skipping a beat. It is also a great choice for a homeowner looking to power up a central air conditioner up to 4 tons, sum pump, well pump, heat, microwave, lights, entertainment center, computers, refrigerators, etc.

  • Model STF14000
  • 20 HP Honda GX630 OHV Engine
  • 10 Gallon fuel tank provides up to 7.8 hour run time at 50% load
  • Tri fuel generator 11700 Watts, 14,000 Starting Watts
  • Natural Gas requirement: 200,000 BTU per hour
  • Compatible with 50 amp manual transfer switch
  • Output is derated 20% for natural gas
  • Electric start
  • Hydraulic/magnetic circuit breakers, GFCI & Twist-Lock Outlets
  • Tubular Steel Frame with 13″ Oversized Wheel Kit provides added protection & makes this generator easy to move
  • (2) 5-20R 120V 20A DUPLEX GFCI; (1) L14-30R 120V/240V 30A TWISTLOCK; (1) 14-50R 120V/240V 50A
  • Premium Grade Alternator – Less than 6% THD provides clean power for sensitive equipment
  • IDLE-DOWN for improved efficiency and quieter operation
  • Low oil shutoff
  • Decibel Level (db) 82
  • 346 pounds
  • 37.5 inch (L) x 24.3 inch (W) x 31.1 inch (H)
  • EPA and CARB compliant
  • Battery and Wheel Kit Included
  • 2 Year Smart Generator Limited Warranty
  • CARB Compliant For California


It is easy to adjust the load block from LPG to Natural Gas.  The load block on your generator’s was tuned to 11 wc at our shop, perfect pressure for our LPG hoses.  Before running on Natural Gas give us a call and a tech will teach you how to adjust the load block over the phone.

What is the Tri Fuel Selector Switch?

We designed this switch for customers who find themselves switching between LPG and Natural Gas on a regular basis.  If you want to avoid having to make constant adjustments to the load block then the Tri Fuel Selector Switch is perfect for you.

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Author Rating
1.5 based on 23 votes
Brand Name
Smart Generators
Product Name
STF14000 Bi Fuel Generator - 14,000 Starting Watts, 11,700 Running Watts
USD 3799.99
Product Availability
Available in Stock

Additional information

Weight 346 lbs
Dimensions 37.5 x 24.3 x 31.1 in


Engine Brand

Starting Power

Running Power


  1. (verified owner)

    I love my generator, its a beast! I can run my entire house of this baby. Thanks for everything, the great advise, the free installation, and the class you handled everything with.

  2. (verified owner)

    I wanted a Honda and I got a Honda. Its reliable and powerful, now I’m ready for the next Sandy.

  3. (verified owner)

    These guys are the experts of tri fuel generators, ask them anything they will not disappoint. They told me they weren’t sure if I could run my central air on this but I did it!

  4. (verified owner)

    I think your customer service and your product is outstanding. I do recommend Smart Generator to everyone, as I talk to people about prepping.
    Jared has been very helpful in answering all of my questions. Also questions about installation, since my situation may be a little different than normal. I’m sure Jared will play a very big factor in getting my job completed. I highly recommend Smart Generators and Jared!!!

  5. (verified owner)

    This generator is a beast!! It is definitely the best made generator I have ever seen!

  6. (verified owner)

    Smart Generator’s service was everything that I wanted and needed. They provided knowledgeable, timely and personal attention to all of my questions along with very competitive pricing for my new STF14000 Honda Tri Fuel Generator. I highly recommend Smart Generators! These guys are the experts of tri fuel generators professionalism and customer service is above and beyond . Not only did I buy the first generator with in a month’s time purchased a Motorhead HondaGX630.

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