I am looking (attempting) to install 4 glass block windows in my basement, one of which will have an inlet and outlet pipe spacing for a horizontally venting furnace. I figure the other ones I will install a vent in for moisture control and air movement.
I have a few questions that maybe someone here could help me with;
1) would it matter if I use 3" or 4" thick block? I have the option of buying either used.
2) would it be best to make the window first and then transfer it to the actual window?
3) from researching these online (as I have never installed them) it looks like silicone would be the best method rather than mortar.
Any help with this (my first post ) would be most helpful.