Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater

I had the older model from 2010 that finally died with either the fan motor or control board. Pricing these items would have cost almost as much as a new one, so I opted to replace the entire unit. This one was the exact size and all the piping and electrical connections were identical. After prepping the new one (using the same shut off valves and gas fittings), it took less than 2 hours to install!!!! Amazon's price was almost half of Home Depot and other internet vendors. I ordered it Monday, received it Tuesday evening, installed it Wednesday morning! Unlike some of the other reviews, mine came with only a small tear in the corner of the box (which was well padded inside)... not a dent or scratch! Very satisfied with the purchase!

Love that we were able to install it outside. This is not a DIY unless you REALLY know what you are doing. It is not a cheap install with a plumber. We did an open box with warehouse and saved $250. Give it a try.

Our Rennai tankless broke. This one fit the exact specs as the Rennai size and fittings. It was easy for my husband to replace it. It heats up way faster and hotter than the Rennai, even when it was new. Shipping was fast too. We are very satisfied.

I bought this outdoor unit and had it installed according to the manufacturer’s specifications. North Carolina had about three usually cold nights which caused the water in the copper tubing to freeze and burst the tubing. I had several conversations with Rheem and Amazon about the issue. To date, the issue is not resolved. It’s okay. I’ll never buy another Rheem product.

We purchased this to replace our 20+ year old monstrosity of a tank hot water heater. The packaging and instructions are very very good. But I strongly suggest a professional to help install unless you have a construction background. The diagrams and written instructions are easy to follow and have a lot of troubleshooting tips. Our problem was our natural gas pressure was too high for this unit so we had to call in a professional to install a regulator for us. Other than that it runs great and has consistent water temperature. We also love that we were able to install it outside because we have a small home. Customer service was also very helpful to determine the issue to have our gas problem resolved. Overall very happy with our purchase.