Tml WP1V01000F Kettle lt. 1000 porcelain glass with a fixed coil heat exchanger with flex insulation

Heat Pump DHW Storage Tank 931 Litres in Vitreous Enamel Carbon Steel S235Jr – WP1V01000F

The WP1V01000F is a vertical domestic hot water (DHW) storage tank with a capacity of 931 litres, manufactured in vitreous enamel carbon steel S235Jr by TML Industrie Loddo for DHW production and storage with heat pump systems. The vitreous enamel body provides excellent corrosion resistance through its inorganic food-grade lining (DIN 4753.3), combining material economy with the performance required by modern heat pump installations. Equipped with a fixed double parallel spiral coil heat exchanger offering 6.0 m² of exchange surface, it ensures efficient heat transfer even at the low primary temperatures typical of heat pump operation.

Technical Specifications – WP1V01000F

• Tank material: Carbon steel S235Jr vitreous enamel – Inorganic food-grade lining (DIN 4753.3) – Anti-rust external coating
• Max pressure / Max temperature (domestic side): 8 bar / 95°C
• Actual capacity: 931 litres
• Heat exchanger: 6.0 m² – Fixed double parallel spiral coil – max 10 bar / 95°C
• Cathodic protection: Replaceable magnesium anode
• Insulation: Flexible polyester + PVC, thickness 130 mm (Fire class B2 DIN 4102)
• ErP: Class C – Heat loss: 138.4 W
• Dimensions: Ø 790 mm × Height 2095 mm
• Weight: 251 kg
• Electric heater connection: 1½" fitting (heater not included)
• Warranty: 5 years

Double Parallel Spiral Coil Technology – Optimised for Heat Pumps

The double parallel spiral coil maximises contact surface in the coldest zones of the tank, reducing heat pump start/stop cycles and improving the overall COP of the system. The vitreous enamel body is the ideal solution for those seeking heat pump boiler performance with an excellent price-to-quality ratio compared to stainless steel versions.

Applications and Compatibility

Ideal for air-to-water or water-to-water heat pumps. Also compatible with conventional gas boilers as backup. Pre-fitted for DHW recirculation, temperature sensor, thermostat, and electric backup heater. Available with rigid insulation (up to 600 litres) or removable flexible insulation (from 800 litres).

Standards and Certifications

The WP1V01000F complies with: PED Directive 2014/68/EU (Art. 4 Par. 3), Italian D.M. 6 April 2004 N.174, ErP Directive 2009/125/EC.