If I burn 1000 calories a day......

Hey All

I'm just curious, I'm about 200lbs and 5'8 and I'm trying to eat between 1500-1800 calories a day. My calorie should be 2100 if I am not mistaken. I have read if you decrease your calorie intake buy 500 a day---->500 x 7 days=3500 you could loose about 1lb a week . 

I have been using my air climber everyday for an 1hour, I burn about 1000 cal. I am wondering if I do this everyday which is about 7000 cal burn in a week and eat normal maybe exceeding my 1800 cal intake, am i benefiting from the work out? WILL I loose weight?

Thanks!