Noob question: Possible to use 1000 Watt & 750 Watt PSU together?

Hi Guys,

I am building my second mining rig and I want to do a quick sanity check before blowing up the building.
Is it safe to use a 1000 Watt psu & 750 Watt PSU of different brands together on one rig?
I had some power issues with my first mining rig so I was thinking of adding the extra muscle.

I want to use the Corsair RM750 (Gold) with the PSU Be Quiet! Power Zone 1000W 80 Plus Bronze.

Any tips on this?

Thanks in forward!