Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

We installed the Rheem 240V Heating Chamber RTEX-13 Tankless Water Heater, and it has completely transformed our buildings hot water system!Pros:Endless Hot Water: This unit provides a continuous supply of hot water, which is perfect for our busy buildings. No more waiting for a tank to refill!Energy Efficient: The on-demand heating means we only use energy when we need hot water, resulting in noticeable savings on our utility bills.Compact Design: Its compact size allows for easy installation in tight spaces, which is a major plus in our buildings.User-Friendly Controls: The digital temperature display and adjustable settings make it easy to customize the water temperature to everyone's liking.Reliable Performance: We’ve had no issues with temperature fluctuations, and it maintains a consistent flow even during peak usage times.Overall, we highly recommend the Rheem RTEX-13 for anyone looking to upgrade to a tankless water heater. It’s efficient, reliable, and has made a significant difference in our daily routine!

I wasn’t 100% sure how well this little tankless heater was going to do with how cold my water was, but reading The other reviews I felt confident it Might work. It’s just right with the right showerheadI turn the shower full hot. Wait for a minute or two and get in. It keeps perfect temperature no fluctuations I would definitely buy again. I have already recommended it to another friend that was building a cabin as well and did not want to sacrifice space for a large water heater.I have been buying product from Amazon when they were only selling books and I’ve never left a review, but this one deserved it.Do yourself a favor and buy High Sierra Showerhead 1.25 GPM it works perfect. It’s a bit expensive but it’s top quality and is worth it you won’t believe how well it is made. I bought the handheld unit, and just bought a second one for my upstairs bathroom.

easy install. works great just requires a 60amp double pole breaker. I never run out of hot water works for full house.

I have this in my house and I have one in my mini cabin.This will run 2 shrinks and a shower with the laundry goring no problem.I have never had any issues with them they are honestly a great product. Great water flow great great and they are small and do not take up much space at all.

Installed this--my first--tankless water heater 3 years ago. Just my wife and I in a 2 bath home in south Florida (warmer entering water temp than most of US). Been very pleased. Endless hot water with steady temps and no issues with competing hot water demands such as dishwasher, sinks, etc. I've been surprisingly satisfied.A few weeks ago we started noticing a drop in water pressure and some temperature fluctuations. Honestly, though I am reasonably handy and experienced, I had no idea I should be cleaning the heater annually. Long story short - cleaned the unit and everything is back to normal.More detail for those who, like me, had the water heater installed without purge/diverter valves. I had only copper piping and no way to flush the heater. Read about some people who used a plumbing circuit involving a washing machine, but couldn't see that working for me. So, I went to Home Depot and spent about $170 on a purge valve kit, copper fittings, pipe, solder, flux, etc., ready to re-plumb my water heater and install purge valves. As I removed the compression fittings attaching the copper pipe to the heater I thought, "why don't I just attach hoses directly to the unit and skip all the plumbing?" That's what I did and it worked beautifully. In my case, I purchased 10' of clear plastic tubing, cut it in half and attached to the heater with band clamps. Used a 1/4hp pump in a 5 gallon bucket and flushed the tank for around 60 minutes. I changed the direction of the flow at about 30 minutes, not sure whether or not it helped but seemed a good idea.Returned almost everything I bought for the project, went home and took a nice long hot shower.

This water heater was installed in a bonus room where it doesn't get a lot of wear and tear. It worked fine for a couple years, then abruptly stopped working. Technical support was absolutely USELESS. Agent couldn't diagnose problem, told me to get a volt meter and sent me a "troubleshooting guide" rather than help me through this issue. (Apparently the agent knew enough to say it's not the heating element which is still under warranty, but the balance of the unit is no longer under warranty.) Then agent suggested I get a plumber. That will cost as much as the unit itself. Then if it CAN be repaired, by the time I buy the part(s) and pay a plumber to install, I will have paid way too much for a unit that has no longevity. Bad buy. Save yourself the headaches and do not buy this product.