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The Briggs & Stratton 40305b - home standby generator (20kw lp- 18kw natural gas) has been discontinued and is not available for purchase at this time.

Briggs & Stratton 40305B - Home Standby Generator (20kW LP- 18kW Natural Gas)

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  • Features
  • Specs
  • 1
    Q&A 
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Grade
Airooled Standby Generators
Style
Watts
18 kW
Rated Watts
Voltage
120/240 Single-Phase
Fuel
Engine
Vanguard
4-Year Limited Warranty
Covers both parts and labor

Briggs & Stratton V-Twin Commercial Engine
Provides years of long lasting, reliable standby power

Sound Shield™ Technology
Ensures ultra-quiet, neighbor-friendly operation (Only 68 dB)

Patented Central Air Technology When Using ACCM-II Transfer Panel
Manages demands of up to two 5-ton central air conditioners

CoastGuard™ All-Climate Enclosure
Automotive rust proofing paint process reduces corrosion

Turnkey Extras
Automatic battery charger
Polymer installation pad
Synthetic oil
Hour meter
LP and Natural Gas configured
Engine
Engine Brand
Briggs and Stratton Vanguard
CC
993 CC
Consumer Engine Warranty
4 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
25000 Watts
Rated Watts
18000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
18000 Watts
LP Power Capacity
20000 Watts
NG Fuel Consumption @ 50% Load
160 (BTU: 160,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
1.95 (BTU: 176,963 BTU/HR) gallons/hr
Rated Amps
75 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
68 dbA
Transfer Switch
Automatic (Not Included)
Enclosure
Steel
Battery
Not Included
A/C Ton Rating
5-Tons
Mounting Pad
Composite (Included)
Cooling System
Air Cooled
UL Listed
Yes
Overview
Made in USA
Yes
Weight
600 Pounds
Product Length
48 Inches
Product Width
33 Inches
Product Height
30.5 Inches
Consumer Warranty
4 Years
Model
40305B
  1 Question
Q: I'm going to build a house in the spring of 2013 and I want to have a standby generator installed when the house is built.

What would be the best size generator? I plan on having a geothermal heating/ac system and the house will be all electric.

by Dan from Kansas on August 06, 2012

A: Thank you for visiting Electric Generators Direct. In regards to your question, the generator size is determined by the starting amperage load of the equipment you are planning on powering when you lose power.

The starting amperage load will be much larger than the running load and proper calculations need to be done to properly size a unit.

We recommend having a certified electrician do your wattage calculations as every home is different.

The electrician would calculate with the following formula to properly size the generator which should be sized at 80% of its running capacity to allow enough flexibility to handle large intermittent loads and still keep voltage output at proper levels.

(Starting Amps x Volts = Watts)

Note: Geo-Thermal systems can require a tremendous amount of starting current and all calculations should be done onsite professionally.

by Mike, Product Expert

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Shop for the Briggs & Stratton 40305B - Home Standby Generator (20kW LP- 18kW Natural Gas) at Electric Generators Direct. Research Briggs & Stratton standby air-cooled generators online. Find Briggs & Stratton 40305B standby air-cooled generators & briggs 40305 20 kw generator features and specifications.