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Warmflow Hot Water Cylinders

Warmflow use a thicker layer of high quality polyurethane insulation in their cylinder range producing amongst the lowest fully certified heat loss levels currently on the market, saving precious fuel and reducing carbon dioxide emissions.

Warmflow insulation is also CFC/HCFC-free, has a zero Ozone Depletion Potential (ODP) and a Global Warming Potential of only 2.

Due to the large surface areas of Warmflow coil-in-coil heat exchangers it is also possible for a condensing boiler to work in condensing mode for longer, and cycle less frequently when heating the hot water, thereby helping to further reduce fuel use and emissions.


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 90 LITRE
£403.95 RRP: £583.20
SAVE 31%
Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 120 LITRE
£454.95 RRP: £657.60
SAVE 31%
Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 150 LITRE
£479.95 RRP: £693.60
SAVE 31%
Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 180 LITRE
£503.95 RRP: £729.60
SAVE 31%
Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 210 LITRE
£519.95 RRP: £752.40
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 120 LITRE
£528.95 RRP: £765.60
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 150 LITRE
£554.95 RRP: £802.80
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 180 LITRE
£563.95 RRP: £816.00
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 210 LITRE
£579.95 RRP: £838.80
SAVE 31%
Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 250 LITRE
£592.95 RRP: £858.00
SAVE 31%
Warmflow Eco DIRECT Unvented Stainless Steel Hot Water Cylinder 210 LITRE
£640.95 RRP: £927.60
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 250 LITRE
£688.95 RRP: £997.20
SAVE 31%
Warmflow INDIRECT Twin Coil Unvented Stainless Steel Hot Water Cylinder 210 LITRE
£755.95 RRP: £1094.40
SAVE 31%
Warmflow Eco DIRECT Unvented Stainless Steel Hot Water Cylinder 250 LITRE
£794.95 RRP: £1150.80
SAVE 31%
Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 300 LITRE
£804.95 RRP: £1164.00
SAVE 31%
Warmflow INDIRECT Twin Coil Unvented Stainless Steel Hot Water Cylinder 250 LITRE
£845.95 RRP: £1225.20
SAVE 31%
Warmflow Eco DIRECT Unvented Stainless Steel Hot Water Cylinder 300 LITRE
£881.95 RRP: £1276.80
SAVE 31%
Warmflow INDIRECT Twin Coil Unvented Stainless Steel Hot Water Cylinder 300 LITRE
£940.95 RRP: £1363.20
SAVE 31%
Warmflow INDIRECT Triple Coil Unvented Stainless Steel Hot Water Cylinder 250 LITRE
£951.95 RRP: £1378.80
SAVE 31%
Warmflow INDIRECT Triple Coil Unvented Stainless Steel Hot Water Cylinder 300 LITRE
£1053.95 RRP: £1526.40
SAVE 31%

All Warmflow Unvented Hot Water Cylinders have been independently tested and accredited. Their complete range of unvented cylinders exceed the performance requirements of the latest editions of the Domestic Building Services Compliance Guide (England & Wales), Domestic Technical Handbook (Scotland), Approved Documents Part F & P (Northern Ireland) and Technical Guidance Document L (Republic of Ireland).

In addition, to ensure that Warmflow maintain their own in house quality standards, Warmflow have in place a BSI approved monitoring system, certified to BS EN ISO 9001:2008.


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