What electrical service does it need?

It runs on 240V and draws about 75 amps at full 18 kW output, so it needs a dedicated circuit sized for that load. A licensed electrician should confirm your panel can carry it.

How many fixtures can it run at once?

18 kW is enough for a whole small home or a few fixtures, but running a shower and several hot taps together will split the output and can cool the water. Plan usage around one or two hot draws at a time.

Does it need a tank or a vent?

No. It heats water as it flows, so there is no storage tank and no gas venting. It mounts on a wall and connects directly to the plumbing and wiring.

Can I install it myself?

The plumbing connections are straightforward, but the 240V wiring and breaker work are not a DIY job for most people. Most buyers have a licensed electrician handle the electrical side.

Is it good for cold climates?

Groundwater in cold regions enters much colder, and an 18 kW unit has to work harder to raise it to a comfortable temperature. In very cold areas, expect lower flow at a given temperature.

What do buyers say about the FUFU&GAGA 18 kW Electric Tankless Water Heater?

Buyers like: Rated 5 out of 5 stars by the single reviewer.

Where can I buy the FUFU&GAGA 18 kW Electric Tankless Water Heater?

2 stores we checked sell it, including Home Depot, Wayfair.

FUFU&GAGA 18 kW Electric Tankless Water Heater

Best price now

$139.99at WayfairChecked Nov 1

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Wayfair

FUFU&GAGA 18 kW Electric Tankless Water Heater

Best price now

$139.99at WayfairChecked Nov 1

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Wayfair

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $139.99 at Wayfair on Nov 1.
Checked at 2 stores.

Our take on the FUFU&GAGA 18 kW Electric Tankless Water Heater

The FUFU&GAGA 18 kW is an electric tankless water heater that runs on 240V and heats water on demand, with no tank to store it. It has an LED temperature display and a self-modulating control that adjusts power to the draw, and its wall-mounted body takes little room. At 18 kW it is sized for a whole small home or a few points of use at once, but it needs a dedicated 240V circuit and heavy-gauge wiring, so professional installation is the norm. It competes on simplicity: no tank, no standby heat loss, and a lower upfront outlay than larger multi-unit systems, though its single 5-star rating says little about long-term reliability.

Best forSmall homes and apartments with 240V servicePoint-of-use hot water for a bathroom or kitchenReplacing a tank heater where floor space is tightHouseholds that want hot water only when it is used

Pros

Heats water on demand, with no tank to keep warm
18 kW output suits a whole small home or several fixtures
Self-modulating control matches power to the hot water draw
LED display shows the set or outlet temperature
Wall-mounted body frees up floor space
Simple design with few parts to wear out

Cons

Requires a dedicated 240V circuit and heavy wiring
Installation is best left to a licensed electrician
Output drops if several hot taps run at once
Little owner feedback to judge long-term durability

FUFU&GAGA 18 kW Electric Tankless Water Heater prices at every store

Home DepotNew
In stock
$190.99Free shippingChecked 6 h ago
Visit Home Depot
WayfairNew
Availability unknown
$139.99Checked Nov 1
Visit Wayfair

FUFU&GAGA 18 kW Electric Tankless Water Heater price history

$190.99$139.99

Nov 2Nov 13

Lowest price we've seen: $139.99 on Nov 2 at Wayfair; highest $190.99 on Nov 13. Tracked across 2 stores since Nov 2.

What reviewers say

Feedback is very thin: a single buyer rated it 5 out of 5. There is not enough owner commentary to judge reliability, temperature stability or install difficulty.

What people mention

RatingsPraisedThe lone reviewer gave it a full 5 out of 5, but one rating says little about how it holds up.

From Wayfair

18 kW electric tankless water heater, 240V
On-demand instant hot water
LED temperature display
Self-modulating control
Space-saving design
Finish: White

About the FUFU&GAGA 18 kW Electric Tankless Water Heater

This is an 18 kW electric tankless water heater that runs on 240V. It heats water on demand, so hot water is available instantly without a storage tank.

An LED display shows the temperature. Self-modulating control adjusts the heating. The compact, space-saving design has a white finish.

Power: 18 kW
Voltage: 240V
Power source: Electric
Type: Tankless, on-demand
Display: LED temperature display
Control: Self-modulating
Finish: White

What buyers say

Buyers like

Rated 5 out of 5 stars by the single reviewer

Specifications

Power Source: Electric

Questions and answers

What electrical service does it need?: It runs on 240V and draws about 75 amps at full 18 kW output, so it needs a dedicated circuit sized for that load. A licensed electrician should confirm your panel can carry it.
How many fixtures can it run at once?: 18 kW is enough for a whole small home or a few fixtures, but running a shower and several hot taps together will split the output and can cool the water. Plan usage around one or two hot draws at a time.
Does it need a tank or a vent?: No. It heats water as it flows, so there is no storage tank and no gas venting. It mounts on a wall and connects directly to the plumbing and wiring.
Can I install it myself?: The plumbing connections are straightforward, but the 240V wiring and breaker work are not a DIY job for most people. Most buyers have a licensed electrician handle the electrical side.
Is it good for cold climates?: Groundwater in cold regions enters much colder, and an 18 kW unit has to work harder to raise it to a comfortable temperature. In very cold areas, expect lower flow at a given temperature.
Where is the FUFU&GAGA 18 kW Electric Tankless Water Heater cheapest?: At Wayfair, for $139.99, as of our latest check.
What do buyers say about the FUFU&GAGA 18 kW Electric Tankless Water Heater?: Buyers like: Rated 5 out of 5 stars by the single reviewer.
Where can I buy the FUFU&GAGA 18 kW Electric Tankless Water Heater?: 2 stores we checked sell it, including Home Depot, Wayfair.