Compact electric tankless · LiberLive

LiberLive REK11/13 11 kW Electric Tankless Water Heater

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

11 kW240 V~46 A2.6 GPM max~1.1 GPM at 70°F rise

Updated October 2026

The short answer

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

Delivers
11 kW.
Watch for
Weak at a large winter rise.
Suits
Light use in mild climates.
Max flow (maker)
2.6 GPM
Power
11 kW
Voltage
240 V
Material
Acrylonitrile Butadiene Styrene, Aluminum, Brass
Dimensions (seller)
7.9"W x 11"H
Product weight
5 lb
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

What it delivers

The LiberLive REK11/13 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.

Worked out from its input, it delivers roughly 1.7 GPM when the water only has to rise 45°F, and 1.1 GPM at a 70°F winter rise: less than one 2 GPM shower in summer, less than one 2 GPM shower in winter. Size it to your fixtures.

At 240 volts 11 kW is about 46 amps. 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.

Other listed details: material: Acrylonitrile Butadiene Styrene, Aluminum, Brass; model: REK11/13.

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

  • 11 kW
  • Up to 2.6 GPM
  • No venting or gas line

Trade-offs

  • Weak at a large winter rise
  • Breaker needs not stated

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 numberREK11/13Retailer
Dimensions (seller)7.9"W x 11"HRetailer
Power11 kWRetailer
Voltage240 VRetailer
Max flow (maker)2.6 GPMRetailer
Product weight5 lbRetailer
MaterialAcrylonitrile Butadiene Styrene, Aluminum, BrassRetailer

Rival units at this flow

More electric tankless water heaters rated for similar demand

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

Final verdict

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

Buy this unit

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

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

How many amps does the LiberLive REK11/13 11 kW Electric Tankless Water Heater draw?
About 46 amps at 240 volts (11 kW ÷ 240 V). Panel capacity, breakers and wire are confirmed by a licensed electrician from the manual.
How much hot water does the LiberLive REK11/13 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.