Manuals for most models of Rheem heaters can be downloaded for free from the company's website. Rheem sells a variety of heaters, including gas furnaces, heat pumps and oil furnaces, as well as water heaters and pool and spa heaters.
To locate a manual, consumers start on the main page of the Rheem website, and select Products. From the drop-down list, users choose the product they need, such as heat pumps, then find the appropriate model on the next page, and click on it. The product page has a link to Specs/Docs, and the Specs/Docs page includes a list of links to PDF documents, including the Use and Care Instructions, in most cases.