Flexible fuels and quiet inverter power for home backup

The FIRMAN WT08500 runs on gasoline (petrol), LPG, or natural gas, so you can plan backup power around the fuel available locally. Its soundproof canopy and inverter technology also address two everyday concerns for home backup: operating noise and the quality of the power supplied to household electronics. For households and distributors serving different markets, it brings these features together with a choice of three fuels.

More options when fuel supplies change

A petrol-only generator depends on a petrol supply. With the WT08500 multi-fuel generator, you can also use suitable LPG or natural gas when the required connections are in place. Keeping a compatible LPG supply in reserve, for example, gives a household another option if petrol becomes difficult to find during an outage.

Fuel choice also gives you more control over running costs. Compare local prices, fuel consumption, and delivery charges for the load you need to power. If those costs change, you can reconsider which fuel to use. The most economical option will vary by location and operating conditions.

Planning for occasional or longer outages

For a generator used only occasionally, fuel storage matters. Propane does not deteriorate in storage in the same way as petrol, making compatible LPG a useful backup reserve. Using gas fuels can reduce concerns about ageing petrol, although the generator still needs regular maintenance and cylinders must be stored safely.

Compared with a petrol-and-LPG dual-fuel generator, the WT08500 also supports natural gas. Where a suitable piped supply is available, this can reduce trips to buy petrol or replace cylinders during longer outages. It requires a reliable gas supply and a correctly installed connection. At properties without that access, petrol and LPG remain practical choices.

Always follow the operating manual when connecting or changing fuels. Tri-fuel capability does not mean automatic or uninterrupted changeover.

Quieter operation and cleaner power

Compared with a conventional open-frame design, the WT08500’s soundproof canopy helps contain engine noise and reduce disturbance around the home. It is designed for quieter operation when providing backup power, with the generator positioned safely outdoors.

The inverter system electronically regulates the AC output to deliver clean, stable power. It is suited to household electronics such as air-conditioner, laptops, televisions, and internet routers, as well as essential appliances within its rated capacity. An ECO mode helps reduce fuel consumption when full output is not needed.

Choose your load to match your fuel

The WT08500 delivers 5.50 kW of running power and 6.85 kW of starting power on gasoline. On LPG, it provides 5.00 kW running and 6.25 kW starting power. On natural gas, the ratings are 4.50 kW running and 5.60 kW starting power.

Start with the appliances you need most, such as lights, a refrigerator and fans. Check their combined running demand and any motor starting requirements against the ratings for your chosen fuel. If you change fuels, check the load again, as the available output will change.

Electric start with recoil backup

Electric start with a built-in battery makes starting convenient, while recoil starting provides a backup. Wheels help you move the generator into position.

For distributors, the WT08500 offers one model to introduce to customers with different fuel supplies. Procurement teams can also consider it for several sites, checking the available fuels, connections and electrical requirements at each location.

Explore the FIRMAN WT08500 product page for full specifications, or contact FIRMAN to discuss distribution and procurement for your market.

Operate the generator outdoors only, at least 6 meters from occupied buildings, with exhaust directed away from doors, windows and vents. Follow the operating manual for fuel connections and changeover.