RTEX-11

After having to take cold showers for a whole week, this thing is amazing! It took my partner 30 minutes to hook it up to the plumping and the electrical work.It works great, it takes 3 seconds for it to turn out after turning on sink or shower then about 30 seconds to feel the water to start heating up even with our big shower head.

let’s just say the water flow is amazing. The water temperature is amazing this value you cannot beat. The quality is amazing. The easy installation does not get any easier than this.We have purchased two of these and we have had no issues with them. We would not have hot showers if we did not own these.

Nice and small unit . But not real impressive. If you just barely turn water on to a trickle it heats up water hot. But the higher you turn on water the colder it gets.... the unit does not have enough chambers to heat up the water fast enough... no I would not buy again

bought to replace a rheem 9. works perfectly. nice thing is i was given same day delivery so it was waiting for me on the porch this morning.easy installation. just undo the old. install the new.

The bad: Product was missing wire holder and crimp mechanism for keeping the cable in place and without stress. But this is a returned item, although the description did not say anything was missing.The GREAT: When I installed it and finally found how to wire it, the water temp was GREAT. I really like that it only uses electricity when water is flowing and it does not take but about 30 seconds to warm up to 125 degrees at the faucet. This size is great for a tiny home with 2 bathrooms and a kitchen and one shower.I would have given it 5 stars but for the missing hardware. Wiring it is 240 Volts, Black to one terminal, red to second terminal green yellow or white to ground, and using a 40 amp 2 pole circuit breaker black on one side and red on second side and green or white wire to ground. (depending on how many wires your cable has).I have been using it for 4 days and it works great, glad I switched from a tank system.

Perfect replace for old water tank. Gave me more closet space too.

We have been using this unit for over a month and it works great. It heats the water within seconds and it is so much more energy efficient than our old unit which is constantly heating 50 gallons. I feel like the whole world needs to go to these and leave the dinosaur hot water units in the past. We are always looking for simple ways to live better and this fit right into that equation. We only have one bathroom so the 11v is plenty for our needs. If you are supplying hot water to multiple places at once then you may consider a larger unit. If you can manage your use to varied times a smaller unit would likely still serve you well. Doing our part to save resources!

If your water heater is a long way off plumbing-wise then you know how long, aggravating, and wasteful it is to run the tap till you get hot water.This unit provides *warm* water after about 7-8 seconds and is fully heated after 15 seconds vs. the nearly two minutes we used to wait. I lollygagged for three years before I finally bought one of these on-demand heaters.Only thing is these on-demand heaters need a dedicated 240 Volt 60 A circuit and uses 6 ga wiring. You aren't plugging this thing into any regular outlet. Wire this thick, stranded of course, was still quite difficult to get connected to the interior terminals due to having to bend to fit inside the unit. But once installed it's doing what I wanted.