This morning someone needed an electrician, that’s me. I need a HVac expert. My Furnance crapped out Sat morning. I know how to check and trouble shoot, it’s electrical. Ok, found my gas valve is bad. When I got Furnance I had to use LP. A couple years later got NG so put in conversion kit, new valve. That is valve I got to replace and there is no label on it. Is there a reference to find what valve I need by make & model? This is a Tempstar I put in early 90s.