Multi windows in tkinter buttons not responding correctly

[Barrowman]

I'm finding it hard to follow your code because there is no indentation within it as it's displayed here.
So it may be that when you are doing

ToggleButton1["text"] = ("Fireplace On")

It cannot see where you have defined ToggleButton1
also I think there is a syntax error anyway. I think it should be

ToggleButton1["text"] = "Fireplace On"

I'm a long way from being an expert but it seems there are many errors in the code. for example in a case where you use def
in this part of the code I have shown the indentation I would expect

class SampleApp(tk.Tk):
   def __init__(self, *args, **kwargs):
       tk.Tk.__init__(self, *args, **kwargs)

self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")
self.title_font2 = tkfont.Font(family='Helvetica', size=10, weight="bold")
self.title_font3 = tkfont.Font(family='Helvetica', size=12, weight="bold")
self.title_font4 = tkfont.Font(family='Helvetica', size=10, weight="bold")

but I have no idea if the

self.title_font = tkfont.Font(family='Helvetica', size=18, weight="bold", slant="italic")
self.title_font2 = tkfont.Font(family='Helvetica', size=10, weight="bold")
self.title_font3 = tkfont.Font(family='Helvetica', size=12, weight="bold")
self.title_font4 = tkfont.Font(family='Helvetica', size=10, weight="bold")

part should be indented to be part of the class itself.
No doubt someone who is far more conversant with this will help.