Enquiry Form
 Underfloor Heating
 Heat Pumps
 LED Lighting
 Electric Vehicles

Pre-Plumbed Cylinders

Pre-Plumbed Cylinders

The Solfex Pre Plumbed Cylinder Provides all of your domestic hot water needs in a single extremely efficient packaged solution.

To create the simplest possible heat pump installation, SOLFEX energy systems, in conjunction with their UK manufacturing partner have created the SOLFEX Pre Plumbed Cylinder.

Available in a range of sizes from 180ltr through to 300ltr and diameters from 575 mm to 650 mm, the pre-plumbed cylinder is one of, if not the most versatile heat pump specific cylinder on the market. All models come complete with around 80% of the components you would require in a sealed heating and hot water system already pre plumbed to the cylinder, effectively saving around half a day’s labour for a plumbing and heating engineer.


Special Features
  • Manufactured in the UK
  • Exceptionally Low Standing Heat Losses
  • Industry Standard 3m² Heating Coil
  • Smart Attractive White Cased Unit
  • 25 Year Warranty on Vessel
  • Slimline (550 mm diameter) option available
  • Highest quality components used
  • Around 80% of components required on site pre plumbed

  1. Hot water draw off
  2. Cold mains in
  3. Secondary return*
  4. Hot water flow
  5. Central heating flow
  6. Heat Pump return
  7. DHW thermistor location
  8. Heat Pump Flow
  9. Hot Water Return
  10. Central Heating Return

*Not present on 180ltr cylinders

Pre Plumbed Components

A. Temperature & Pressure relief valve
B. Auto air vent
C. 3 Port diverter valve
D. Controls Mounting Plate
E. Flow meter with flush & fill      ports
F. Tundish
G. Filling Loop
H. Magnetic Filter
I. Overheat Thermostat
J. Circulation Pump
K. Cylinder Drain off
L. Auto Bypass
M. Immersion Heater
N. System Drain off


Component Kit supplied seperately
  • Potable expansion vessel(s) c/w flexible hose & wall bracket
  • 2 Port (22mm) Zone valve for primary circuit energy cutout
  • Wiring junction box for primary system
Pre Plumbed Cylinder Technical Specification
    HH-PP-180SLIM HP-PP-210SLIM HP-PP-250 HP-PP-300
Height mm 1790 1970 1745 1992
Approx Diameter mm 575 575 650 650
Weight (empty) kg 46.3 50.3 56.3 71.3
Weight (full) kg 226.3 260.3 306.3 371.3
Capacity l 180 210 250 300
Standing losses kWhr/24hr 2.01 2.23 1.85 2.04
Surface area of heat pump coil m2 3 3 3 3
Cylinder warranty   25 Years 25 Years 25 Years 25 Years
Cylinder Components & Electronics Warranty   2 Years 2 Years 2 Years 2 Years

Note - all connections are supplied with compression fittings for direct connection to copper pipework

Model Selection Guide
Number of Bedrooms in property Model
3 HP-PP-250
4 HP-PP-300
You can navigate above
between our divisions.