Import 150l Heat Pipe Pressure Solar Water Heater — Buy in wholesale FOB from Supplier in China

This 150-litre heat pipe pressure solar water heater from Haining Bulusike in Zhejiang, China, uses a closed-loop heat pipe system where working fluid vaporises inside vacuum tubes and condenses at a manifold to transfer heat to the stored water. The inner tank is stainless steel SUS304 or SUS316L with a wall thickness of 1.0 to 1.2 mm, while the outer casing can be painted steel at 0.4 mm, aluminium-zinc coated steel at 0.45 mm, or stainless steel SUS201 or SUS304. Vacuum tubes are specified as QB-AL-N/AL-47-1500 or 58-1800, with polyurethane insulation between 50 and 60 mm thick, and the frame is either coated galvanized steel at 1.5 mm, stainless steel SUS430 at 1.5 mm, or 2.0 mm aluminium alloy.

Because no glycol circulates through the tubes and the heat pipe is sealed, the design avoids the maintenance burden of antifreeze replacement and periodic checks typical of indirect thermosiphon systems. The supplier states the collector converts over 92 per cent of incident solar energy to thermal output, with no circulation loss, and the thicker insulation layer is claimed to maintain performance down to minus 30 degrees Celsius. An intelligent controller, electric backup heater, magnesium anode rod, T/P valve, and negative pressure valve are listed as standard accessories, though buyers should confirm exact accessory sets and electric heater wattage with the supplier before ordering.

This unit is designed for direct connection to mains water pressure without a circulation pump, making it suitable for residential villas, small apartment buildings, and commercial guesthouses in regions with reliable solar irradiance. The system operates year-round with freeze-protection built into the heat pipe design, and the optional electric element covers cloudy periods. Buyers sourcing from Haining Bulusike should request current FOB pricing, MOQ, packaging dimensions, and lead time, as none of these figures are published on the listing, and confirm whether the SUS316L inner tank option carries a price premium over SUS304.

Haining Bulusike is based in Haining, Zhejiang Province, China, a region with a concentration of solar thermal manufacturing. The supplier's listing is classified under the harbour trust tier on the platform, but the response rate and average response hours are both recorded as zero, meaning prospective buyers have no public signal of how quickly this supplier replies to enquiries.

The listing presents detailed technical specifications for a heat pipe pressure solar water heater range, including multiple material and frame options, which suggests a factory capable of customisation rather than a pure trading operation. However, the profile does not disclose company registration details, export history, certification status, or production capacity, so buyers should request business licences, relevant solar product certifications such as Solar Keymark or SRCC if targeting European or North American markets, and recent shipping records before committing to an order.