Looking for a contractor that applies Dan's principles in Ontario Canada?

blu_in_green

You all have been so helpful in my other thread: https://forum.heatinghelp.com/discussion/179804/new-to-me-110-year-old-home-help-with-grundfos-ups15-58fc-rattle-videos-included#latest

I'm starting to think I'm in over my head and appetite for DIY and am wondering if anyone can recommend someone who understands modern hydronics and can apply them in a sensible way to a very old and flawed system.

I've tried a number of contractors in my area, but they seem unawares of the principles you all have taught me in my original thread. I'm located in Toronto Ontario Canada.

I have basement tenants and cannot go blowing out all my home's walls again (as I did for electrical work). Of course the rads and furnace room would be accessible for work. I'm looking for a solution that fits with these constraints.