FLOWCYL Heat pump

Our cylinders are manufactured to the highest quality in our UK factory by the best manufacturing specialists.
Product Range

The Flowcyl heat pump cylinder is designed for maximum performance. The Flowcyl is fitted and supplied with all the required components and controls (shown opposite) to provide seamless compatibility with your chosen heat pump.


  • Supplied with a manufacturer’s backed 25 year cylinder warranty and 2 years parts warranty.
  • Diameter is 545mm from capacities 120L to 300L – larger sizes available on request.
  • Manufactured from high grade Duplex Stainless Steel.
  • Fully insulated with 50mm 100% CFC and HCFC free polyurethane to minimise heat loss.
  • Lightweight construction with high quality and 100% recyclable silver casing.
  • Supplied with high quality unvented components.
  • All plumbing connections are clearly identified with their description embossed into the cylinder case.
  • Supplied with 28mm coil connections ; 22mm Hot and cold water connections and 10mm sensor pocket for Heat pump controls.
  • 10mm Sensor probe pocket included for heat pump controls.
  • Market leading and highly efficient primary coil to ensure rapid exchange of heat from Heatpump
  • Long-life 3kW Incoloy immersion heater supplied as standard.
  • Immersion heater upgrades available upon request – i.e. Titanium or 6 K/W.
  • Supplied with all safety controls as required by UK Building Regulations.


DescriptionProduct CodeNominal Capacity (L)Weight (KG)Weight full (KG)Height (mm) Diameter (mm)Heat Pump Coil Surface Area (m2)Heat Pump Coil Rating (kW)kWh/ 24h (Standing Heat Loss)WATTS (Standing Heat Loss)ERP BAND
400 LFCHPD34004007647616136902.9735.442.292C
500 LFCHPD35005009259219756902.9735.442.42101C
600 LFCHPD360060010370321396902.9735.442.68112C