Don't know what to say, just sad! You really need to take the time to make a better incubator. Try a Styrofoam cooler box.
It sounds like your temps never got high enough, but I'm just guessing.
So called Dry hatching is silly. If you live it a humid area it's ok to do. Where I live the RH is 10~15% most of the year, so a dry hatch here would cook my eggs.
I would never do a dry hatch, as I feel there is a lot of evidence of 45% RH is good.
Why change what works?
I'm happy with the Brinsea High intensity model 190.
https://www.brinsea.com/p-524-ovaview-high-intensity-egg-candler.aspx
I have a lot of lights I could use, but they all heat up the egg in seconds.
The Brinsea is very bright without any heat. Not cheap, but worth it.
All you can do is hope for the best. My last batch of 6 piped and hatched on day 19.
4 days now and there doing really well, couple even getting feathers already.
Good luck!🙂 and don't do this:he
I have a NR360. Fan failed on my second hatch. Had it for just over two months.
They offered a free replacement, but I wanted a better quality fan, I found a used Papst NOS German fan off Ebay for less than a new Chinese fan. Works really well, as it has better flow and less noise then stock...
If you have a room that stays above 73*f, check out the Rcom pro10+. It's small but will do 10 eggs and is fully automated. push the chicken button, and 21 days you'll have chickens...