Compact electric tankless · LiberLive

LiberLive RE13K 13 kW Electric Tankless Water Heater

13 kW compact electric tankless, about 54 A at 240 V

13 kW240 V~54 A60‑amp double‑pole circuit breaker3.1 GPM max~1.3 GPM at 70°F rise

Updated October 2026

The short answer

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

Delivers
13 kW.
Watch for
Flow drops with cold inlet water.
Suits
Light use in mild climates.
Max flow (maker)
3.1 GPM
Power
13 kW
Voltage
240 V
Breakers (maker)
60‑amp double‑pole circuit breaker
Material
Acrylonitrile Butadiene Styrene, Aluminum, Brass
Dimensions (seller)
7.9"W x 11"H
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What it delivers

The LiberLive RE13K 13 kW Electric Tankless Water Heater is a compact electric tankless rated at 13 kW on 240 volts. Its listing gives a maximum flow of 3.1 GPM.

Flow depends on how cold the incoming water is. Our estimate from its input: 2.0 GPM at a 45°F rise, falling to 1.3 GPM at 70°F, which is less than one 2 GPM shower on a cold-climate winter day. Size it to your fixtures.

At 240 volts 13 kW is about 54 amps. The maker calls for 60‑amp double‑pole circuit breaker. A licensed electrician confirms the panel, the service and the wire before it goes in.

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

Also on the listing: material: Acrylonitrile Butadiene Styrene, Aluminum, Brass; model: RE13K.

The listing gives dimensions of 7.9 in (W) x 11 in (H) and a weight of 5 lb.

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

  • 13 kW
  • Up to 3.1 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 numberRE13KRetailer
Dimensions (seller)7.9"W x 11"HRetailer
Power13 kWRetailer
Voltage240 VRetailer
Max flow (maker)3.1 GPMRetailer
Product weight5 lbRetailer
MaterialAcrylonitrile Butadiene Styrene, Aluminum, BrassRetailer
Breakers (maker)60‑amp double‑pole circuit breakerRetailer

Rival units at this flow

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Final verdict

A practical 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 LiberLive RE13K 13 kW Electric Tankless Water Heater need?
About 54 amps at 240 volts (13 kW ÷ 240 V). The maker calls for 60‑amp double‑pole circuit breaker. Panel capacity, breakers and wire are confirmed by a licensed electrician from the manual.
How much hot water does the LiberLive RE13K 13 kW Electric Tankless Water Heater deliver in winter?
About 1.3 GPM at a 70°F rise and 2.0 GPM at a 45°F rise, estimated from its power and capped at its stated maximum.