Tml TW1X00200R Kettle lt. 200 in AISI 316L stainless steel with a fixed coil heat exchanger with rigid insulation

2-in-1 Hybrid Heat Pump Storage Tank 189 Litres in AISI 316L Stainless Steel – TW1X00200R

The TWIN TW1X00200R is an integrated 2-in-1 heat pump system combining in a single vertical unit a 189-litre DHW boiler in AISI 316L stainless steel (1.4404) (upper tank) and a 42-litre inertial buffer in carbon steel (lower tank). This innovative solution by TML Industrie Loddo allows a complete DHW production and heating system powered by a heat pump, while optimising space and reducing installation costs compared to two separate tanks.

Technical Specifications – TW1X00200R

• DHW boiler (upper tank):
• Material: AISI 316L stainless steel (1.4404) – Pickling and passivation inside and out
• Max pressure / Max temperature: 6 bar / 95°C
• Actual DHW capacity: 189 litres
• Heat exchanger: 1.9 m² – Single fixed spiral coil – max 10 bar / 95°C
• Cathodic protection: Replaceable magnesium anode
• Inertial buffer (lower tank):
• Material: Carbon steel S235Jr – Anti-rust coating
• Max pressure / Max temperature: 4 bar / 95°C
• Buffer capacity: 42 litres
• Total insulation: Rigid PU foam + PVC 50 mm (Fire class B3 DIN 4102) – non-removable
• ErP (DHW boiler): Class B – Heat loss: 59.9 W
• Dimensions: Ø 450 mm × Height 1690 mm
• Weight: 79 kg
• Electric heater connection: 1½" fitting (heater not included)
• Warranty: 5 years

Twin Technology – Two Tanks in One Body

The TWIN system elegantly addresses the need for both a high-efficiency DHW boiler and an inertial buffer for heating. Fixed spiral coil for efficient heat transfer between the heat pump and the stored DHW. The lower inertial buffer is fed by the same heat pump, acting as a thermal flywheel for the low-temperature heating circuit (underfloor heating, fan coils, etc.), further reducing start/stop cycles and extending heat pump service life.

Why Choose the TWIN TW1X00200R?

Compared to installing a separate DHW boiler and buffer, the TWIN offers: space savings (one footprint instead of two), reduced installation costs (fewer hydraulic connections, faster installation), optimised heat pump operation through combined thermal storage, and unified management of DHW + heating from a single heat source.

Standards and Certifications

The TW1X00200R complies with: PED Directive 2014/68/EU (Art. 4 Par. 3), Italian D.M. 6 April 2004 N.174, ErP Directive 2009/125/EC.