5 month old babies can't go for walks to warm up.
It's bloody cold at the moment and it will be miserable being stuck in the middle of nowhere in a freezing cold house with a baby.
What you would do if your own heating broke down is irrelevant.
That would be an emergency.
Why would you willingly choose those same conditions when you have a heated house to stay in?
It is absolute bullshit that people were healthier before central heating. Life expectancy was lower and far more people died of respiratory illnesses.
It is not advised that people sleep in rooms below 15C because it affects their health. It could well be colder than that in the house in question.
My 5 month old is my PTB, not my 1st or 2nd, and there is no way I would be taking them to an unheated house in November unless I had to.
People on MN are idiotic about heating for some reason.
Would you take your family away for the weekend to a place you knew woukd not have enough food? I doubt it. This is no different really.