Sunds like a perfect unit Chris, but i agree with Rally. 3 amps is not huge & so you'd need to check your total peak demand.
My go-to with heaters & motor focus has a peak demand of about 4.5amps.
My Kendrick heatr ctrlr has a built in 5amp fuse.
I have a 7.5amp main fuse & when I plug the lappy in as well I blow the main fuse.
The old girl draws a bit.
B