Compact electric tankless · WINTEMP

WINTEMP YQ-WN11K 11 kW Electric Tankless Water Heater

11 kW compact electric tankless, about 46 A at 240 V

11 kW240 V~46 A1 x 50 Amp DP breakers2.6 GPM max~1.1 GPM at 70°F rise

Updated October 2026

The short answer

A solid compact electric tankless for light use in mild climates.

Delivers
11 kW.
Watch for
Flow drops with cold inlet water.
Suits
Light use in mild climates.
Max flow (maker)
2.6 GPM
Power
11 kW
Voltage
240 V
Amps (maker)
46 A
Breakers (maker)
1 x 50 Amp DP breakers
Connections
1/2" npt
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What it delivers

The WINTEMP YQ-WN11K 11 kW Electric Tankless Water Heater is a compact electric tankless rated at 11 kW on 240 volts. Its listing gives a maximum flow of 2.6 GPM.

At a 45°F rise (mild inlet water to a 120°F set point) it holds about 1.7 GPM, less than one 2 GPM shower; in winter, at a 70°F rise, about 1.1 GPM, less than one 2 GPM shower. Try your own inlet temperature.

At 240 volts 11 kW is about 46 amps (the listing states 46 A). The maker calls for 1 x 50 Amp DP breakers. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.

Electric tankless units need no venting and no gas, and work best where inlet water stays mild, because every degree of rise costs flow.

From the listing: features: Fire-retardant ABS casing, LED Display, Temperature Lock; connections: 1/2" npt; material: Acrylonitrile Butadiene Styrene; model: YQ-WN11K; warranty: 2-year.

The listing gives dimensions of 9.7 in (W) x 14 in (H) and a weight of 8.6 lb.

Warranty, per the listing: 2-year.

Right unit for this house?

Install it when

  • Light use in mild climates
  • Homes with no gas service

Look at another unit when

  • Panels without spare capacity
  • More than 1 shower at once in cold winters

Strengths and trade-offs

Strengths

  • 11 kW
  • Up to 2.6 GPM
  • No venting or gas line
  • Breakers stated by the maker

Trade-offs

  • Flow drops with cold inlet water

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 numberYQ-WN11KRetailer
Dimensions (seller)9.7"W x 14"HRetailer
Features (seller)Fire-retardant ABS casing, LED Display, Temperature LockRetailer
Power11 kWRetailer
Voltage240 VRetailer
Max flow (maker)2.6 GPMRetailer
Product weight8.6 lbRetailer
Warranty2-yearRetailer
MaterialAcrylonitrile Butadiene StyreneRetailer
Amps (maker)46 ARetailer
Breakers (maker)1 x 50 Amp DP breakersRetailer
Connections1/2" nptRetailer

Rival units at this flow

More electric tankless water heaters rated for similar demand

Full electric tankless water heaters spec grid · Every WINTEMP unit in the catalog

Final verdict

A solid compact electric tankless for light use in mild climates.

Buy this unit

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Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What breakers does the WINTEMP YQ-WN11K 11 kW Electric Tankless Water Heater need?
About 46 amps at 240 volts (11 kW ÷ 240 V). The maker calls for 1 x 50 Amp DP breakers. Panel capacity, breakers and wire are confirmed by a licensed electrician from the manual.
How much hot water does the WINTEMP YQ-WN11K 11 kW Electric Tankless Water Heater deliver in winter?
About 1.1 GPM at a 70°F rise and 1.7 GPM at a 45°F rise, estimated from its power and capped at its stated maximum.