Please spend some time reading the sticky information on this site before embarking on this journey. If you want to grow out discus, you need to be prepared to do large, frequent water changes. You're talking at least twice a week. Some of us change 100% daily. You'll need a system to make water changes, which is difficult in a 110 gal. I have one of these and they're difficult to keep clean (when your arms don't reach). When your discus pairs off, you'll need separate breeding tanks for each pair. You'll also likely need a quarantine tank and a hospital tank. There's a lot involved. Heaters and filters are the least of it.
Good luck, Willie