Does it come with inner flue pipe and flue shield pipe?

No it does not. The roofjack needed for venting would be an additional cost. You can find the available options we offer here: https://hvacdirect.com/style-crest-revolv-roof-jack-required-for-rg1-furnaces.html (If link does not work, please click "Read More" and you'll be navigated to a page where it can be clicked.) If you’re unsure which to use for your project, please give us a call and we’ll get you fixed up.