Well remembered Al I use to run a henry hoover and a karcher pressure washer on a 2.6kva ...shame really as I only sold it last month as I needed the space, but Tonys right in what hes saying. Try Costco as there pretty cheap and do a no quibble excahnge if you fancy a newer model later on Also if you but the round to square plug adapters beware as they soon melt if used a lot ....