Does the installation brochure come with the furnace? Is there help in switching from natural gas to propane that comes with the furnace?

Hello, yes a manual is included with the furnace. If for some reason it is not, you can find the manuals on the products page under specifications. Regarding fuel conversion, if you're asking about installation, we do not provide installation. We allow the customer to find a local contractor/installer that best fits your needs. If you have any further questions please feel free to give us a call! Thank you.