Sorry, the web browser you're using is not supported by this website.

Please use Google Chrome, Firefox, Safari, or another browser to access homex.com. Thank you.

Skip to main content

We use cookies to enhance your experience. For details on how we use cookies, collect data, & how to manage your consent please see our Cookie Policy & Privacy Policy.

Can you use existing vent for tankless water heater?

The tankless heater can't use a chimney flue to vent, and it can't share vent piping with any other appliance. There is a special pipe. Is this true? The galvanized vent from your old storage tank heater would quickly rust if you had a tankless heater. Downhill slope can be a drain.

Let's Get It Fixed!

Our virtual experts can diagnose your issue (for free!) and resolve simple problems.

What Did You Think of This Article?

What Did You Think of This Article?

Shop Recommended ProductsShop HomeX Recommended Products