Mikepier wrote:
I live in a split level house with a finished basement that I moved
into back in July. This is our first winter and I noticed it was cold
in the basement and after further investigating discovered that there
was no insulation behind the wood panel walls. So I am in the process
of removing the wood panels, which is fairly easy, and putting
insulation inside the walls between the studs and on the sill plates
between the ceiling joists.

Pay special attention to the top half as most of the heat loss will be
there, the bottom half is far enough underground that you will not loose
much heat there, the walls will be warmer.

I have a storage closet that has no
finished wall inside, it is just the foundation slab. How should I
insulate this? I was thinking of using those styrofoam insulation
boards and glueing them to the foundation.

Make sure the insulation is certified for exposed use. It is a safety
issue. Most Styrofoam is highly poisonous when it burns. It must be
covered with drywall for your protection and likely local fire code.

Also my furnace room has
exposed foundation walls. I know I'm not suppose to put anything
flammable near the furnace so is it better off just leaving the
foundation exposed?

As noted there will be specifications for the furnace. Be sure to
follow them and be extra careful with any foam insulation.

You may need to have someone take a look at the heat distribution (duct)
system and your heating capacity before you have this all corrected. My
guess is the heating equipment was not designed to heat the basement to
living standards, or if it was,. it was poorly done. Only an on site
inspection and some measurements can tell for sure.

--
Joseph Meehan

26 + 6 = 1 It's Irish Math