Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
The xwdzswgs 3,000 W Under-Sink (110V) keeps things simple: a point-of-use heater for hot water on demand without a gas line. We rate it 7.0/10 from its documented specs.
| Brand | xwdzswgs |
|---|---|
| Category | Electric tankless water heaters |
| Fuel | Electric |
| Stated voltage | 110 V |
| Total current | 32 A |
| ASIN | B0FTCMVRY3 |
Full listing title: 110V Tankless Water Heater Electric, 3000W Tankless Electric Water Heater Instant, Under Sink Water Heater with Digital Display, On Demand Hot Water Heaters Electric for Kitchen Washin Bathroom.
| Fuel | ElectricFull listing title |
|---|---|
| Stated voltage | 110VFull listing title |
Rated from the listing's specs, no buyer reviews yet
What it's made for: hot water on demand without a gas line.
Two electric tankless heaters close to it on our rating, each with a dated price.
What it has going for it
Safety listing. CSA, ETL or UL certification is named in the listing. Inspectors look for that mark before they sign off.
What the xwdzswgs 3,000 W Under-Sink (110V) listing names:
Breakers and wire gauge are in the installation manual, and it overrides anything above; your electrician reads it first.
On Sep 30, 2026, that price put it in the cheaper third of the 19 point-of-use heaters we have a recent price for.
Count a plumber's visit and, unless it plugs in, an electrician for the circuit.
The button opens the exact listing (ASIN B0FTCMVRY3), where today's price, stock and seller apply.
Want the shower covered too? The Rheem 18 kW Electric, 240V (9.3/10) is an 18 kW whole-house unit.
Want it to draw only what it needs? The ThermoMate 14 kW Electric, 240V (7.9/10) is self-modulating, per its listing.
Our take
The xwdzswgs 3,000 W Under-Sink (110V) is a plain point-of-use heater, and for hot water on demand without a gas line plain can be the point. No buyer reviews yet, so this xwdzswgs point-of-use heater has to win you over on paper. Where it falls short: no word on the heating power or the flow. We'd pick it if you want a point-of-use heater for hot water on demand without a gas line; otherwise, put it next to the Rheem 11 kW Multi Fixture (240V) first.
the unit on the wall next to the old tank's spot, water in and out. Under a sink or on the wall beside it, close to the tap it feeds.
Hot in a few seconds once the water in the pipes has passed. Set it, then leave it.
Colder inlet water means less hot flow from the same power. Low-flow shower heads stretch it further.
Clean the inlet screen and flush out scale on hard water. Our flushing and descaling guide has the routine.
Before you order the xwdzswgs 3,000 W Under-Sink (110V), check the tap it will feed: it is a small unit, made for one fixture.
Decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off.
It runs on 110 V. A dedicated outlet or circuit may still be needed; an electrician confirms the breaker and the wire.
Small units need a minimum flow to switch on. Ask the seller for that figure if you have low-flow aerators.
Electric units scale too, mostly at the inlet screen and the element. Our flushing and descaling guide covers the routine.
How the xwdzswgs 3,000 W Under-Sink (110V) stacks up against the closest alternative, the Rheem 11 kW Multi Fixture (240V).
| Criterion | xwdzswgs 3,000 W Under-Sink, 110V | Rheem 11 kW Multi Fixture, 240V |
|---|---|---|
| Our rating | 7.0/10 | 7.2/10 |
| Heating power | Not stated | 11 kW |
| Max flow | Not stated | 2.68 GPM |
| Breakers | 32 A total | Not stated |
| Warranty | Not stated | 5 years |
Pick the Rheem 11 kW Multi Fixture (240V) if you want our higher-rated option (7.2/10), with more power (11 kW) and more stated flow (2.68 GPM).
We rate it 7.0/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing states 110 V. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Which tap: decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off. Power: it runs on 110 V. A dedicated outlet or circuit may still be needed; an electrician confirms the breaker and the wire. Activation flow: small units need a minimum flow to switch on. Ask the seller for that figure if you have low-flow aerators. Scale: electric units scale too, mostly at the inlet screen and the element. Our flushing and descaling guide covers the routine.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula.