What it delivers
The Rheem RTEX-06T 6.5 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 6.5 kW on 240 volts. Its listing gives a maximum flow of 1.5 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 1.0 GPM at a 45°F rise, falling to 0.6 GPM at 70°F, which is less than one 2 GPM shower on a cold-climate winter day. Try your own inlet temperature.
At 240 volts 6.5 kW is about 27 amps. The requirement calculator shows it at 208 V too; an electrician confirms the panel.
It's meant for a single fixture near the unit: it saves the wait for hot water there rather than heating a whole house.
Also on the listing: features: Tankless, Thermostatic Control, Compact and Wall-Mountable; model: RTEX-06T.
The listing gives dimensions of 10.88 in (W) x 5.88 in (H) and a weight of 4 lb.
Right unit for this house?
Install it when
- One sink or a low-flow shower
- A far bathroom with a long wait for hot water
Look at another unit when
- Whole-house hot water
- Kitchen sinks at full flow in cold climates
Strengths and trade-offs
Strengths
- 6.5 kW
- Up to 1.5 GPM
- No venting or gas line
Trade-offs
- Winter flow is much lower
- Breaker needs not stated
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | RTEX-06T | Retailer |
|---|---|---|
| Tank | 1.4 gal | Retailer |
| Dimensions (seller) | 10.88"W x 5.88"H | Retailer |
| Features (seller) | Tankless, Thermostatic Control, Compact and Wall-Mountable | Retailer |
| Power | 6.5 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 1.5 GPM | Retailer |
| Product weight | 4 lb | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
- Stiebel Eltron Mini 4 3.5 kW Point-of-Use Tankless Water Heater
- WINTEMP WM07V 7 kW Point-of-Use Tankless Water Heater
- VancEpic RE8K 8 kW Point-of-Use Tankless Water Heater
- Eemax HA008240 8 kW Point-of-Use Tankless Water Heater
Full point-of-use water heaters spec grid · Every Rheem unit in the catalog
Final verdict
A practical point-of-use electric tankless for one sink or a low-flow shower.
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