SPECIFICATIONS
Option 1:
12kW System
Option 2:
25kW System
Option 3:
75kW System
Manufacturer -
Model No.
BRIGGS & STRATTON
1815
CATERPILLAR
G25F3S
CATERPILLAR
G75F3S
Wattage
Rated/Surge
Rated/Surge
Rated/Surge
Natural Gas1
11kW/13.75kW
23kW/28.75kW
70kW/85kW
Liquid Propane
12kW/15kW
25kW/31.25kW
75kW/90kW
Voltage
120/240V AC, Single Phase, 60Hz
120/240V AC, Single Phase, 60Hz
120/240V AC, Single Phase, 60Hz
Rated Amps
@ 120V/ 240V
@ 120V/ 240V
@ 120V/ 240V
Natural Gas
92 Amps/46 A
190 Amps/95 A
583 Amps/291 A
Liquid Propane

100 Amps/50 A

208 Amps/104 A
625 Amps/312 A
Engine
627cc B&S
V-Twin
2.5L Ford
4 Cylinder
6.8L Ford
V10
Cooling
Air Cooled
Liquid Cooled
Liquid Cooled
RPM
3600 RPM
1800 RPM
1800 RPM
Governor
Mechanical
Electronic
Electronic
Fuel Consumption
1/2 Load/Full
1/2 Load/Full
1/2 Load/Full
Natural Gas (Cfh)
102/195
162/321
162/836
Liquid Propane
(Gallons/Hr)
1.15/2.15
2.75/4.25
6.3/9.8
Electronic Ignition/Circuit Breaker
Hour Meter/Diagnostic Center
Block Heater
N/A4
12V Battery & Trickle Charger
Unit Dimensions -
Standard Enclosure

43in L x 30in W
x 28.5in H

61in L x 28in W
x 43in H
95in L x 36in W
x 54in H
Unit Dimensions -
Sound-Attenuated Enclosure
N/A
78in L x 34in W
x 46in H
122in L x 48in W
x 59in H
Weight (Std/S.A Enclosure)
380 lbs
1,111 lbs/1,349 lbs
2,174 lbs/3,547 lbs
Installation Base Pad
Polymer Pad
Concrete Pad
Concrete Pad
Noise Level @ 7m (23 feet)
70dB
73dB
78dB
Optional Super Quiet Enclosure
N/A
58dB
65dB
Automatic Transfer Switch
50 Amp
Cutler-Hammer
100 Amp
Caterpillar
400-600 Amp
Zenith
Optional Transfer Switch
100 Amp /200 A3
200 Amp
800 Amp
Auto Exerciser
Weekly
20 Minutes
7/14/21/28 Day
15 Minutes
7/14/21/28 Day
15
Minutes
Warranty
3 years /
1500 hours limited
2 years /
1500 hours limited
2 years /
1500 hours limited
Equipment/Appliances/Lights Coverage2
Gas/Oil Fired Furnace(s) (2)
Fridges (2)
Freezer
Water Well Pump
Grinder/Ejector Pump
Sump Pump
Micro/Hot Plate/Toaster
Bedroom Lights
Kitchen Lights
Family Room Lights
TV/Computer/Phone/Security
Air Conditioning (4-ton)
Elect Cooktop
Small AC
(2-ton)
Washer/ Gas Dryer
Garage Doors
Dishwasher
Basement Lights
Bath/Hall/Flood Lights
Entire House Load (800 Amp)
Notes:
  1 Natural gas rating will depend on specific BTU of local fuel supply
2 In the above coverage table, Homeowner may substitute circuits of equivalent size for those not applicable.
3 Not recommended for standard applications
4 Optional battery warmer and oil heater for cold weather applications