
16 kW Air-Cooled Standby Generators
Big Generator Protection… Half the Price
More power, more features and an exceptional price make the GUARDIAN QuietSource™ 16 kW the best value in automatic standby generators. With GUARDIAN’s new breakthrough technology, the 16 kW provides the circuit protection of a much larger generator at a truly remarkable price. If you need to run more than one air conditioner, the GUARDIAN QuietSource 16 kW is the affordable solution. With 33% more circuit coverage than our 13 kW, this powerhouse can start a 5-ton AND a 3-ton, or two 4-ton air conditioners with plenty of power to spare.
Whisper Quiet Operation GUARDIAN’s exclusive patent-pending Whisper-Test™ low speed exercise feature makes the GUARDIAN QuietSource 16 kW the quietest air-cooled generator on the market. Whisper-Test reduces noise to less than 59 dBA during the weekly automatic self-test. That’s quieter than your central air conditioner.
With our pre-packaged, 16-circuit pre-wired system, installation is fast, easy and inexpensive, making the 16 kW an even better value.
- Breakthrough Design: Newly designed alternator can start a 5-ton AND a 3-ton*, or two 4-ton* air conditioners with plenty of power to spare
- Circuit Coverage: Protects 16 circuits of your home
- Automatic Voltage Regulator: Quality electrical output for sensitive electronics
- Electronic Governor: Fast response to changing electrical loads
- Whisper-Test™: Patent-pending, self-test feature makes the GUARDIAN QuietSource quieter than your central air conditioner
- Generac OHVI® Industrial Engine: The ONLY air-cooled engine designed specifically for generators
- Longest Life Expectancy in the Industry: Over 3,000 hours of run time
- Full Pressure Lubrication: Continuous lubrication of all vital engine parts for protection from moment of start up for ultimate engine protection
- Spin-on Oil Filter: Automotive style for easy maintenance and prolonged engine life
- Superior Paint: Tough, textured powder coat paint finish for unmatched durability and all weather protection
- UL Listed: For safety and certified power ratings

- Clean Burning Fuel: Natural gas or LPV
| Model Number |
05243 |
| Rated Power LP (kW) |
16 |
| Rated Power NG (kW) |
15 |
| Voltage @ 60 Hz |
120/240 |
| Phase |
Single |
| Frequency |
60 Hz |
| Amps LP |
133.3/66.6 |
| Amps NG |
125.0/62.5 |
| Engine/Altenator RPM |
3600/3600 |
| Engine |
992cc
30 HP
Generac OHVI
V-Twin |
| Fuel Comsumption LP (cu.ft./hr.)/(gal./hr.) |
92 (2.51) |
| Fuel Consumption NG (cu.ft./hr.) |
245 |
| EPA/CARB Certified |
Yes |
| Fuel |
Natural Gas/LP Vapor |
| Engine Cooling |
Air |
| Enclosure |
Steel |
| UL 2200 (US and Canada) |
Yes |
| Sound Output dB(A) at 23 ft. with generator operating at full load |
71.5 |
| Sound Output dB(A) at 23 ft. with generator in WhisperTest™ low speed exercise mode |
61 |
| Main Line Circuit Breaker |
65 Amp |
| Dimensions (L" x W" x H") |
48 x 24 x 28-1/4 |
| Unit Wt. (lbs.) |
445 |
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*Note: Prior to choosing a generator size, always check the appliance or equipment manufacturer's power requirements. This will help to ensure power accommodations for items that cycle during operation. |