OK, allow me to retort.
This little colony of bees didn’t start off that way. They come from a large natural swarm that entered my WBC back in May, seven days after I had first set it up. This is my first foray into beekeeping. I felt extremely privileged that they had chosen me.
A week later I went into the hive for the first time to find most of the colony had moved on leaving a queen which I found and marked on that inspection along with a couple of frames of bees.
I then got to watch as my little colony was slowly decimated. Every week the colony grow a little smaller. I made so many different entrances for that WBC some with small entrances some with really long tunnel like entrances to try and keep the wasps out. The robbing become merciless
I studied what course of action I could take. I watched hours and hours of video and looked into articles. Everything I was seeing was telling me there was NOTHING I could do. One video I saw they actually stated let the colony die.
This was unacceptable to me. So I found a local club, found a contract phone number and spoke to someone.
We talked for nearly twenty minutes and the upshot was it sounds like you’ve done everything you can, you’ll have to let them die off.
Just after that phone call I decided to move them into the Nuc and into the polytunnel.
1. Temperature
It soon become clear there were not enough of them to stabilise
the temperature in the Nuc. How did I know this well that was down to the BBQ thermometer with one probe in the hive just above the brood frames and one at hive height just outside the hive.

This sends the readings to a receiver in my kitchen.
2. Temperature control.
This is accomplished with lots and lots of insulation which helps hold the temperature consistent, the use USB power packs

a portable vivarium heater mat (which doesn’t do that much but it did help keep the temp above 31c over night)

and a mini computer fan.

Now probably because there are more of them they are much more able to control the temp themselves.
3. Feeding.
They have the choice of fondant on the landing along along with 1:1. There’s a 2:1 rapid feeder in there as well as pollen pattie.
To be honest I spoilt them feeding with eye droppers on the landing and making them a dinner plate (Yes I know).

They lived on unprocessed honey from a hive from up the road for weeks.
Conclusion, is it an ideal situation of cause not but it is infinitely better than the alternative.
Now I have a chance at combining with a queenless colony I believe the owner wants me to take on anyway.
My only concern now it the joining goes well as as you can now imagine I would be gutted for it to fail and loose them and all the hard work put in.
Buy the way I have to get up by 6am to clean out all the spider webs change power packs to get it them on charge and I work from home so I’m watching the temperature all the time and when it has got too hot I have let them out but robbing has taken place. Also please remember it can get hot in the polytunnel but I don’t know about anyone else but I don’t keep my bedroom at 35c.
Also when I ask what would you have done in that situation I ask that not to start an argument or accuse but as a genuine question which would have been nice to have received a more informed answer that’s all.
New keepers come here for a reason.
Regards
Gaff.