What it puts out
Generac rates it at 14,000 watts on both propane and natural gas, so the fuel you choose does not change what it can carry.
Generac Guardian 14kW home standby
Generac rates the Generac Guardian 14kW at 14,000 watts on propane and 14,000 watts on natural gas. Whether that carries your house depends on your load list, which a free sizing visit settles.
We sell and install Generac home standby and commercial generators.
The 14kW in plain terms
A Generac 14kW runs whatever fits inside its rating at the same time, including the starting current of a central air conditioner. Generac rates it at 14,000 watts on both propane and natural gas, so your fuel does not change what it carries. Your load list decides whether that is the whole house or essential circuits.
Generac rates it at 14,000 watts on both propane and natural gas, so the fuel you choose does not change what it can carry.
A 14kW unit carries the loads that fit inside its rating at the same time, including the extra current a central air conditioner draws as it starts. Only your load list can say whether that is the whole house or a set of essential circuits.
The 18kW above it is rated 17,000 watts on natural gas, 3,000 watts more.
The unit needs a transfer switch matched to your service and to the loads you choose: whole house, essential circuits, or load management for large air conditioning loads.
We set the unit, install and wire the transfer switch, pull the electrical permit and start it up under load. Gas line and gas connection are not included. That is a licensed plumber's work and we quote it separately.
The installed price for a 14kW is the unit plus the switch, the electrical work, the gas line, placement and the permit. We write yours after the free sizing visit.
Questions about generac 14kw generator installation? Call or get a quote.
From Generac's published specifications
Generac's published figures list the Guardian 14kW, base model G007223, at 14,000 watts on propane and on natural gas. It has a G-Force 800 engine, a 60 amp main line circuit breaker and weighs 385 lb. Generac publishes a 5 Year Limited Warranty and notes that specifications are subject to change without notice.
| Generac base model | G007223 |
|---|---|
| Rated power, propane | 14,000 watts |
| Rated power, natural gas | 14,000 watts |
| Engine | G-Force 800 |
| Main line circuit breaker | 60 amps |
| Weight | 385 lb |
| Warranty, as Generac publishes it | 5 Year Limited Warranty |
Figures as Generac published them on 2026-10-31. Generac notes that specifications are subject to change without notice, and the written warranty terms for the exact model are Generac's. Source: Generac's 14kW product page and its spec sheet.
Questions about generac 14kw generator installation? Call or get a quote.
Generac quote
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FAQ
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Generac rates it at 14,000 watts on propane and 14,000 watts on natural gas.