I did this cheap & easy with raw netting & velcro, and I've been very pleased with it. It works fine if you don't go through the doors much. Cost well under $100. 1. I bought raw mosquito netting (from mosquitocurtains.com). 2. Cut it to fit across both doors, allowing extra width to fold edges under for neat appearance, & of course some overlap onto the door frame where the velcro would be. 3. Attached 1" velcro patches, 3 across the top and about 4 down each side. (I stapled one side of the velcro onto the curtains with an ordinary stapler - 2 staples on each. Super quick. Nailed their mates to the door frame (eek!) with 3 small nails. Doorframe, curtains & velcro are all white, and it looks surprisingly neat and nice. (I could even white-out the nail heads!) Still, in winter I'll probably take it down, leaving just a few inconspicuous little velcro patches.

I have a patio door with a single sidelight the same width as one of the patio doors. It looks like a 3 panel setup but only two of the doors open. I think they are 36" wide but would have to double check. So a bit wider that your existing opening. Looks similar to the door in the picture but i have two doors that open.

Most higher end doors will have a retractable option if you are talking about a French door in which both panels open. There are also a myriad of aftermarket solutions out there.

I had "service issues" with American Range. I would never recommend an AR product for anyone unless it was used. Can you actually get a modern electric oven with no electric panel?