There are several reliable heaters; presently I would get an Eheim Jager, which was the last heater I acquired a few years ago. Other members will have reliable heater brands to recommend, but the important thing is wattage and number.
Assuming this 110 gallon tank is at minimum 4-feet in length, and more likely 5 feet, you want two heaters. These should be positioned at opposite ends, next to the filter intake at one end and the filter return at the other (assuming a canister filter). This provides good dispersal of heat. The higher wattage tend to function with less issues, and last longer; my 150w and 200w heaters purchased in the 1990's were still working with no problems when I gave the larger tanks away this Spring when I moved. I would suggest two 250w or two 300w heaters. The climate and room temperature factor in to this, as heaters are not intended to heat in really cold rooms.
If you have a canister with a heating element, this is ideal and eliminates separate heaters altogether; I had an Eheim Pro II with heating element on my 90g tank for over 20 years with not one issue.