LPG & Dual Fuel Generators NZ

Dual fuel generators run on either petrol or LPG, letting you switch fuels to suit price, availability and how long you're storing the machine. LPG burns cleaner, stores for years without going stale, and is handy for home backup, while petrol gives you full power and easy top-ups on the move. Generator Shop stocks LPG and dual-fuel generator models for Kiwis who want flexibility and long-term readiness. All our LPG-capable units are dual-fuel, so you can run on LPG or petrol from the same machine - we don't currently stock LPG-only generators.

What dual fuel generators are used for

Dual fuel suits users who value options. Home backup owners keep an LPG bottle on hand - unlike petrol it won't degrade between rare outages, so the generator is always ready. Off-grid and rural users switch to LPG for cleaner, quieter running and back to petrol for maximum output when needed. Caravanners and campers who already carry gas bottles can run the generator from the same fuel. Anyone wanting a backup that sits unused for months benefits from LPG's long shelf life.

How to choose a dual fuel generator

Weigh four factors. Fuel flexibility - confirm the unit runs both petrol and LPG and comes with the LPG connection kit. Output on each fuel - generators usually make slightly less power on LPG than petrol, so size to the LPG figure if that's your main fuel. Storage and readiness - if the generator will sit between uses, LPG avoids stale-fuel starting problems. Application - match running watts to your load as with any generator, adding surge headroom. Because dual-fuel plumbing and bottle connections vary, check the included kit and regulator, or ask our team.

Frequently asked questions

What are the advantages of a dual fuel generator?

Flexibility and readiness. You can run on cheaper or more available fuel, switch to petrol for full power or LPG for cleaner, longer-storing operation, and avoid the stale-petrol starting issues that plague generators left unused - LPG keeps for years.

Does a generator make less power on LPG than petrol?

Usually a little less. LPG has a slightly lower energy density, so most dual-fuel generators produce marginally lower output on gas than on petrol. If LPG will be your main fuel, size the generator to its LPG rating rather than the petrol figure.

Is LPG better for home backup?

For infrequent backup, often yes. LPG doesn't degrade in storage the way petrol does, so a dual-fuel generator with a gas bottle connected is ready whenever an outage hits - no draining, no stabiliser, no hard starts from stale fuel.