No..mine blows...lol..sorry bad joke
but really, my heater blows so hot i cant brethe sometimes. But when my t-stat was out, it never blew even warm, then again my eng never heated up either.
see if your temp rises to mid way then turn it on. if still not hot then I dont think it is a t-stat issue. i would try valve at that point.
1/4 in t-stat hole is kinda big. If the eng never warms up all the way then the heater will not be hot.

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1985 4Runner