Can’t help with the OP.
But…I have a customer who hoards. I had to condemn her gas boiler 3 years ago and she has been with out hot water and heating since then. A new boiler can’t be fitted as I can’t get properly into any room. I occasionally go in to repair some plumbing or other and its got so bad that I can’t get my tool box through the house.
Its impossible to describe how bad it is. Just stuff new and old pilled floor to ceiling every room, bathroom, kitchen and up the stairs with a tiny corridor through that I have to slide side ways to get around!
I’ve offered to help her many times and so have her friends but she declines any help.
The only clear area is the roof space.
Sad to see.