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Written from the listing's specs, not from our own use · How we rate
We like the Westinghouse 14 kW Electric (240V) for the mix: a compact 14 kW element and Wi-Fi control from your phone. It is a good match for a powder room, a garage sink or a tiny house, at 7.7/10 on its documented specs.
| Brand | Westinghouse |
|---|---|
| Category | Electric tankless water heaters |
| Fuel | Electric |
| Stated heating power | 14 kW |
| Stated voltage | 240 V |
| Minimum activation flow | 0.53 GPM |
| Wire gauge | 6 AWG |
| Wi-Fi | Built in, per the listing |
| ASIN | B0GX99CQ3Z |
Full listing title: Westinghouse 14kW Tankless Water Heater Electric 240V, Wifi, ETL, Gray
| Fuel | 14kWFull listing title |
|---|---|
| Stated heating power | 14kWFull listing title |
| Stated voltage | 240VFull listing title |
Rated from the listing's specs, no buyer reviews yet
What it's made for: a powder room, a garage sink or a tiny house.
Two electric tankless heaters of about the same power, closest to it on our rating, each with a dated price.
The heating power the listing states; at 240 V that's about 58 A. On our calculator's maths it gives about 2.2 GPM of 105 °F water when the tap water comes in at 62 °F, and less in winter. Enough for a kitchen or a bathroom sink.
What it has going for it
Wi-Fi app. Set the temperature, see the flow and get error codes on your phone, which beats reading a blinking code in the crawl space.
Starts at 0.53 GPM. The minimum flow that switches it on. A low-flow bathroom tap opened gently may not trigger it, which is worth knowing before it goes under the sink.
One sink: about 2.2 GPM of 105 °F water with 62 °F tap water, on our calculator's maths. That covers a kitchen or a bathroom sink.
A shower: on paper, with warm tap water, just about (a shower takes about 2 GPM). In January it falls short.
The seller states, word for word, in the Westinghouse 14 kW Electric (240V) listing:
This Westinghouse tankless water heater electric requires a dedicated 60A double-pole breaker and 6 AWG wire at 240V for stable, safe operation.
This Westinghouse electric tankless water heater 240v delivers hot water in just 3 seconds with 98% thermal efficiency.
Compatible with Alexa and Google Home, this 14kW Westinghouse tankless water heater lets you adjust temperature and monitor usage via simple voice commands or the mobile app from anywhere.
A removable inlet filter and rotor can be easily taken out by hand for cleaning—we recommend rinsing them every 6 months to remove trapped sediment and scale.
That's the seller talking, not us. No listing tells you how it copes with 42 °F water at 6:45 in the morning.
What the Westinghouse 14 kW Electric (240V) listing names:
Breakers and wire gauge are in the installation manual, and it overrides anything above; your electrician reads it first.
At the price on Sep 30, 2026, each kW of stated heating power works out at about $22.86 (price ÷ stated kW, our arithmetic). That puts it around the middle of the 17 point-of-use heaters we have a price and a stated power for.
Add the circuit to the budget if it doesn't plug in, and an hour of plumbing under the sink.
The button opens the exact listing (ASIN B0GX99CQ3Z), 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.
Want to spend less? The ORBEK 14 kW Electric, 240V (7.7/10) was listed at $189.99 on Sep 30, 2026.
Our take
Our favourite thing about the Westinghouse 14 kW Electric (240V) is a compact 14 kW element, closely followed by Wi-Fi control from your phone. No buyer reviews yet, so the Westinghouse 14 kW Electric (240V) has to win you over on paper. The one thing that bugs us: no word on the breakers it needs or the flow. We'd pick it if the kitchen or the powder-room sink takes forever to run hot; otherwise, put it next to the ORBEK 14 kW Electric (240V) first.
6 AWG wire, 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.
With 42 °F water coming in, 14 kW gives about 1.5 GPM at 105 °F on our calculator's maths. Low-flow shower heads stretch that further.
Clean the inlet screen and flush out scale on hard water. Our flushing and descaling guide has the routine.
Before you order the Westinghouse 14 kW Electric (240V), check the tap it will feed: 14 kW suits one sink or a low-flow shower, and it needs 0.53 GPM to switch on.
14 kW warms one sink or one low-flow shower, not two. Decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off.
It runs on 240 V. At 240 V it needs a dedicated circuit; an electrician confirms the breaker and the wire.
It switches on at 0.53 GPM. A low-flow aerator opened gently may not reach that, so check the faucet you plan to pair it with.
Electric units scale too, mostly at the inlet screen and the element. Our flushing and descaling guide covers the routine.
How the Westinghouse 14 kW Electric (240V) stacks up against the closest alternative, the ORBEK 14 kW Electric (240V).
| Criterion | Westinghouse 14 kW Electric, 240V | ORBEK 14 kW Electric, 240V |
|---|---|---|
| Our rating | 7.7/10 | 7.7/10 |
| Max flow | Not stated | 3.38 GPM |
| Breakers | Not stated | 150 A total |
Both score 7.7/10. The ORBEK 14 kW Electric (240V) adds more stated flow (3.38 GPM).
We rate it 7.7/10 (very good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing states a heating power of 14 kW on 240 V. The headline flow is a mild-weather number: with cold winter water coming in, the same unit gives you less. Read the maker's flow chart at your winter rise, or let our flow-rate calculator do the sums.
The listing states 240 V and 14 kW. At 240 V, that is roughly 58 A. A licensed electrician checks the panel, the breakers and the wiring before it goes on the wall.
Its listing states 14 kW for one tap and Wi-Fi control from your phone. These are the seller's figures, not our measurements: how steady the temperature is in your shower and how it copes with your winter water can't be read from a listing.
Which tap: 14 kW warms one sink or one low-flow shower, not two. Decide the fixture first, then check the flow it needs. Our point-of-use guide explains the trade-off. Power: it runs on 240 V. At 240 V it needs a dedicated circuit; an electrician confirms the breaker and the wire. Activation flow: it switches on at 0.53 GPM. A low-flow aerator opened gently may not reach that, so check the faucet you plan to pair it with. 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.