Affiliate Disclosure: PickClarity earns commissions from qualifying purchases through our partner links. Our rankings are editorially independent — they are never influenced by affiliate relationships or commission rates. Learn more about our methodology.
#6 in Tankless Water Heaters
Rheem RTEX-18 Electric Tankless
Rheem
$340.00 – $460.00
An 18kW electric tankless with brass and copper immersion elements, external digital thermostat, and about 4.4 GPM in warm inlet conditions. The sweet spot for one-to-two-fixture homes and accessory apartments.
8.3
Good
Consensus
Don't buy this if…
- Do not expect this to run two winter showers at once, since 18kW yields roughly 2 GPM against cold groundwater.
More in Tankless Water Heaters
View all →Rheem RTEX-18 Electric Tankless
From $340