Indirect Cylinder

With market leading large surface area and high performance heat exchange coils, the Indirect models boast impressive heat-up times. With market leading large surface area and high performance heat exchange coils, the Indirect models boast impressive heat-up times - the 180 litre model taking just 25 minutes to reach 60ºC from cold!

Our Indirect models, like the rest of the range, are designed to be fed directly from the mains water supply via the inlet group supplied, which is capable of receiving incoming water at pressures up to a maximum of 12 bar. In order to achieve the best performance from our unvented cylinders, the mains water supply must be capable of supplying a flow rate of at least 20 litres per minute with a dynamic pressure of at least 1.5 bar. Should the supply performance be less than this the hot water flow rates will be reduced, however a Warmflow unvented cylinder may still be installed and the benefits of a fast heat-up time and minimal heat losses can still be enjoyed.

Cylinder Stats

Model IN120UV IN180UV IN180UV IN210UV IN250UV IN300UV
Model IN120UV IN180UV IN180UV IN210UV IN250UV IN300UV
Dimensions
(A) Height (mm) 952 1142 1327 1517 1767 2077
(B) Secondary return connection (mm) - - - 1223 1473 1783
(C) Primary coil upper connection (mm) 462 462 532 532 532 532
(D) Cold inlet connection (mm) 412 412 482 482 482 482
(E) Primary coil lower connection (mm) 362 362 432 432 432 432
Operating Data
Cold water capacity (litres) 120 150 180 210 250 300
Weight when full (kg) 140 180 210 250 290 350
Standing heat loss (kWh/24h) 1.15 1.31 1.4 1.66 1.92 2.07
Performance
Primary coil rating @ 15L/min (kW) 17.5 17.2 21.3 19.9 22.4 20.4
Heat up time (EN12897) (mins) 19 25 25 31 34 41
ErP Water Rating rating rating rating rating rating rating

Explore other models

Twin Coil Cylinder

TW180UV / TW210UV / TW250UV / TW300UV
  • Inlet group, complete with strainer, pressure-reducing valve and balanced cold connection
  • Incoloy 3kW immersion heater (s)
  • Port zone valve (except direct models)
  • Expansion vessel complete with flexible connection hose and hanging bracket
View cylinder details

Eco Direct Cylinder

ED180UV / ED210UV / ED250UV / ED300UV
  • Inlet group, complete with strainer, pressure-reducing valve and balanced cold connection
  • Incoloy 3kW immersion heater (s)
  • Port zone valve (except direct models)
  • Expansion vessel complete with flexible connection hose and hanging bracket
View cylinder details

Triple Coil Cylinder

TR250UV / TR250UV
  • Inlet group, complete with strainer, pressure-reducing valve and balanced cold connection
  • Incoloy 3kW immersion heater (s)
  • Port zone valve (except direct models)
  • Expansion vessel complete with flexible connection hose and hanging bracket
VIEW CYLINDER DETAILS

Discover more download our brochure.

Our brochures are in .pdf format and available to read digitally, if you would like a printed copy please don't hesitate to get in touch with our customer service team.