I am not sure what you mean by KNOWLEDGEABLE. I will suggest a bit but you can decide if you want to consider what I say as sensible. I am not an electrical engineer. If you need professional advice, you probably need to hire somebody. First, read what Omega has to say about fuses here:
Since you have a resistive load, you will have no issues with startup surges, etc. I would suggest a fast acting fuse. If your current jumps, it would likely mean there is a short to ground or a serious overvoltage condition. You want the system to shut down quickly. You might want to put two fuses in since you have hot leads to both sides of the heating element. If the fuse in the schematic blows, the heater will stop but will still have a voltage of 110 V to ground. It is possible that the heating element would continue running at half power. Since failures occur in unexpected ways, you would have to imagine the consequences of having the voltage remain on.
Fuses with a delay would make sense with something like motors where there might be a high current starting load. You will not have that. The current your system should pull is 22.9 amps if everything is spot on for voltage and power. It would be a good idea to measure the current to know what you really have. I would think something like a 25 or 30 amp fuse would be a good size.