OK just my opinion ---
If you really need 1,750 watts of continuous power -
And you buy a unit rated for 2,200 surge and 1,800 continuous you will end up being disappointed.
If you really need 1,750 watts continuous power you need a unit rated for AT LEAST 3,000 watts continuous and maybe 4,000 surge.
Long term running you want to be around 50-60% of rated run capacity.
Just because the manufacturer says it is XXXX watts running does not mean that is where you will be able to run it for hours and hours.
Sure maybe for a day - but long term you are not going to be disappointed.