I unfortunately had to replace my instant hot that was installed in 2006 due to a leak. A check on the internet revealed that this leak was a common problem on the instant hot model I owned and that a redesign in the newer model eliminated this problem. I called customer service to check on the warranty as I had forgotten how long ago I had the item originally installed. The customer service representative was helpful in checking for a warranty...and due to the fact that the item was out if warranty, I was offered a generous discount on a replacement model directly from the manufacturer. I couldn't believe the huge savings over retail cost....I believe the discount was 65% off.....amazing deal as I was going to have to purchase the item at my local Big Box retailer for a listed price of $400. The customer service and product support is second to none, thank you.