What it delivers
The Goyappin LF-002A 5.5 kW Point-of-Use Tankless Water Heater is a point-of-use electric tankless rated at 5.5 kW on 110 volts. Its listing gives a maximum flow of 3.0 GPM.
Flow depends on how cold the incoming water is. Our estimate from its input: 0.8 GPM at a 45°F rise, falling to 0.5 GPM at 70°F, which is less than one 2 GPM shower on a cold-climate winter day. Check your house in the planner.
At 110 volts 5.5 kW is about 50 amps. The maker calls for 50A Double Pole Circuit Breaker. Whether your panel can carry it alongside heating and cooking loads is an electrician's call.
It's meant for a single fixture near the unit: it saves the wait for hot water there rather than heating a whole house.
Also on the listing: connections: 1/2"npt; material: Acrylonitrile Butadiene Styrene; model: LF-002A.
The listing gives dimensions of 5.8 in (W) x 8.5 in (H) and a weight of 3.1 lb.
Right unit for this house?
Install it when
- One sink or a low-flow shower
- A far bathroom with a long wait for hot water
Look at another unit when
- Whole-house hot water
- Kitchen sinks at full flow in cold climates
Strengths and trade-offs
Strengths
- 5.5 kW
- Up to 3.0 GPM
- No venting or gas line
- Breakers stated by the maker
Trade-offs
- Weak at a large winter rise
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 number | LF-002A | Retailer |
|---|---|---|
| Dimensions (seller) | 5.8"W x 8.5"H | Retailer |
| Features (seller) | Anti-Freezing Protection, Anti-Scale Design, Dry Combustion Protection, Overheat Protection, leakage protection Anti-Freezing Protection, Anti-Scale Design, Dry Combustion Protection, Overheat Protection, leakage protection | Retailer |
| Power | 5.5 kW | Retailer |
| Voltage | 110 V AC | Retailer |
| Max flow (maker) | 3 liters per minute | Retailer |
| Product weight | 3.1 lb | Retailer |
| Material | Acrylonitrile Butadiene Styrene | Retailer |
| Breakers (maker) | 50A Double Pole Circuit Breaker | Retailer |
| Connections | 1/2"npt | Retailer |
Rival units at this flow
More point-of-use water heaters rated for similar demand
Final verdict
A practical point-of-use electric tankless for one sink or a low-flow shower.
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