Built-in booster pump
The pump keeps water pressure strong in apartments with weak lines or long pipe runs — steady flow at every tap.
A 5.5 kW instant water heater with a built-in booster pump that keeps the flow strong even on a weak line: hot water in about 2 seconds, constant temperature in 30–55 °C. Rated 3,500 W on 110 V and 5,500 W on 220 V — one body covers both export markets. Choose a stainless steel cup or a cast aluminium heating element when ordering — the same body, two price levels. No plug: it wires straight to the included 40 A leakage protector, and a full shower set comes in the box.
MOQ 100 pcs for custom panel colour, pattern and logo · 1,000 pcs for custom packaging. Samples from 1 pc — the sample price is higher than the bulk price, and we refund the difference once you place a bulk order within 30 days of receiving the sample. Prices are quoted per order, EXW Shanghai — tell us your quantity and destination port and we will reply within one working day.
Why this model
Five things buyers ask about first — every unit is function-tested on the line before packing.
The pump keeps water pressure strong in apartments with weak lines or long pipe runs — steady flow at every tap.
Order the stainless steel cup or the cast aluminium element — same housing, same controls, different price level to fit your market.
Set the temperature once and it holds — no sudden cold spikes when the shower valve moves.
Head, riser rail and hose ship together with the unit, ready to install on a 2.5 mm² copper line.
Specifications
Every unit is pressure-tested and function-tested before packing. Custom panel finish and power connection available for OEM orders.
| Model | X5-B |
|---|---|
| Product type | Instant electric tankless water heater with booster pump |
| Rated power | 3,500 / 5,500 W |
| Rated voltage | 110 / 220 V ~ |
| Rated frequency | 50 / 60 Hz |
| Heating element | Stainless steel cup or cast aluminium (selectable) |
| Booster pump | Built-in |
| Heating time | ≈ 2 seconds |
| Temperature range | 30 – 55 °C |
| Control | Mechanical knob |
| Wiring | 2.5 mm² or thicker copper wire, no plug — direct to leakage protector |
| Protection | Over-temperature · dry-heat · 40 A leakage protector included |
| Waterproof rating | IPX4 |
| Product size | 408 × 230 × 83 mm |
|---|---|
| Package size | 486 × 125 × 415 mm |
| Net weight | 3.1 kg |
| Carton quantity | 4 pcs / carton |
| Carton size | 535 × 500 × 445 mm |
| Gross weight | 15 kg |
| Shower set | Included |
| Certification | CE, RoHS |
OEM & ODM
We build for importers, wholesalers and own-brand retailers — from a panel colour change to a fully customised product and gift box.
Front panel in your colour and pattern, with your logo laser-etched or applied as a sticker. Artwork proof before mass production.
MOQ 100 pcsCustom printed inner box and master carton, colour or gift box, barcode and retail labelling. Export cartons are drop-tested.
MOQ 1,000 pcsSupplied without a plug as standard: the unit is wired directly to the 40 A leakage protector included in the box. Other market requirements on request.
No extra MOQSamples & price protection
Every model is available as a sample, and every price step you reach is paid back to you — the sample itself included.
Order a single unit to test it, open it up and show your own customers. No minimum quantity, any model in the range, shipped with its CE and RoHS test reports.
MOQ 1 pcA single unit is charged above the bulk price, because of one-off handling and air freight. Place a bulk order for the same model within 30 days of receiving the sample and we refund the difference.
30-day rebateOur four price tiers — 10–99 / 100–999 / 1,000–9,999 / 10,000+ pcs — are counted cumulatively over the 30 days after you receive the goods. Reach a higher tier and we refund the difference on the units you have already shipped.
Cumulative over 30 daysTell us which model you want to test and we will send the sample invoice the same working day.
Product details
Send us your quantity, destination port and power connection requirements — we will come back with prices and lead time within one working day.
Browse the full range — instant water heaters, hot water taps and bathroom & desk heaters — in one PDF.