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Customers Recommend

Ariston Classico STD125HE Unvented Glass Lined Steel Cylinder, Direct, 125 Litres

Price: £351.83inc VAT

RRP : £729.60SAVE £377.77

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Unvented Mains Pressure Cylinders

Known for superb longevity and durability, stainless steel is the material of choice for modern hot water cylinders. We list unvented hot water cylinders from all the big brands including ACV, Telford, RM Cylinders, Ariston, Heatrae Sadia and more.

The most common type of unvented cylinder is indirectly heated by a boiler, with direct models heated by immersions. Solar models have the addition of a solar coil. Often commonly called a Megaflo, most unvented stainless steel cylinders contain the same parts as the Heatrae Sadia model, but are available at a far better price. We advise customers not to pay over the odds for their hot water cylinder!

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Scroll Down to See More Unvented Mains Pressure Cylinders

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Ariston ST100 Wall Hung Unvented Stainless Steel Cylinder, Direct, 100 Litres
SAVE 52%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS893168/406815

  • manufacture_icon

    Manufacturer Code

    3820016

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    Ariston


Ariston Classico STD125HE Unvented Glass Lined Steel Cylinder, Direct, 125 Litres
SAVE 52%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060267

  • manufacture_icon

    Manufacturer Code

    3060398

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 90 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFDI90UV

  • manufacture_icon

    Manufacturer Code

    DI90UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


Ariston Classico STD150HE Unvented Glass Lined Steel Cylinder, Direct, 150 Litres
SAVE 52%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060268

  • manufacture_icon

    Manufacturer Code

    3060399

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 125 LITRE
SAVE 49%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD125

  • manufacture_icon

    Manufacturer Code

    TSMD125

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 150 LITRE
SAVE 48%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD150

  • manufacture_icon

    Manufacturer Code

    TSMD150

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Ariston Classico STD210HE Unvented Glass Lined Steel Cylinder, Direct, 210 Litres
SAVE 52%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060269

  • manufacture_icon

    Manufacturer Code

    3060400

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 170 LITRE
SAVE 48%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD170

  • manufacture_icon

    Manufacturer Code

    TSMD170

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


HomeStyle Unvented Stainless Steel Cylinder, Direct, 90 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS90D

  • manufacture_icon

    Manufacturer Code

    S90D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Ariston Aquabravo ITD130 Unvented Stainless Steel Cylinder, Direct, 130 Litres
SAVE 52%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3826503

  • manufacture_icon

    Manufacturer Code

    3070520

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


HomeStyle Unvented Stainless Steel Cylinder, Direct, 120 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS120D

  • manufacture_icon

    Manufacturer Code

    S120D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 120 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFDI120UV

  • manufacture_icon

    Manufacturer Code

    DI120UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


Ariston Classico STI125HE Unvented Glass Lined Steel Cylinder, Indirect, 125 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060271

  • manufacture_icon

    Manufacturer Code

    3060379

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


HomeStyle Unvented Stainless Steel Cylinder, Direct, 150 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS150D

  • manufacture_icon

    Manufacturer Code

    S150D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Ariston Aquabravo ITD150 Unvented Stainless Steel Cylinder, Direct, 150 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3826504

  • manufacture_icon

    Manufacturer Code

    3070521

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 200 LITRE
SAVE 46%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD200

  • manufacture_icon

    Manufacturer Code

    TSMD200

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Ariston Classico STI Unvented Glass Lined Steel Cylinder, Indirect, 150 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060272

  • manufacture_icon

    Manufacturer Code

    3060380

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 150 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFDI150UV

  • manufacture_icon

    Manufacturer Code

    DI150UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 90 LITRE
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD090

  • manufacture_icon

    Manufacturer Code

    TSMD090

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Telford Tempest INDIRECT Unvented Stainless Steel Hot Water Cylinder 125 LITRE
SAVE 46%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMI125

  • manufacture_icon

    Manufacturer Code

    TSMI125

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


HomeStyle Unvented Stainless Steel Cylinder, Direct, 180 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS180D

  • manufacture_icon

    Manufacturer Code

    S180D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Telford Tempest INDIRECT Unvented Stainless Steel Hot Water Cylinder 150 LITRE
SAVE 47%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMI150

  • manufacture_icon

    Manufacturer Code

    TSMI150

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


RM Stelflow Unvented Stainless Steel Cylinder, Direct, 90 Litres
Available In Stock More info
  • reference_icon

    Our Reference Code

    ST90DIR

  • manufacture_icon

    Manufacturer Code

    90D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    RM Cylinders


Telford Tempest DIRECT Unvented Stainless Steel Hot Water Cylinder 250 LITRE
SAVE 47%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMD250

  • manufacture_icon

    Manufacturer Code

    TSMD250

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 180 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFDI180UV

  • manufacture_icon

    Manufacturer Code

    DI180UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


RM Stelflow Unvented Stainless Steel Cylinder, Direct, 120 Litres
Available In Stock More info
  • reference_icon

    Our Reference Code

    ST120DI

  • manufacture_icon

    Manufacturer Code

    120D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    RM Cylinders


HomeStyle Unvented Stainless Steel Cylinder, Indirect, 90 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS90I

  • manufacture_icon

    Manufacturer Code

    S90I

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


HomeStyle Unvented Stainless Steel Cylinder, Direct, 210 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS210D

  • manufacture_icon

    Manufacturer Code

    S210D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Telford Tempest INDIRECT Unvented Stainless Steel Hot Water Cylinder 170 LITRE
SAVE 46%
Available In Stock More info
  • reference_icon

    Our Reference Code

    TELTSMI170

  • manufacture_icon

    Manufacturer Code

    TSMI170

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    LIFETIME guarantee

  • brand_icon

    Brand

    Telford


Ariston Aquabravo ITI80 Unvented Stainless Steel Cylinder, Indirect, 80 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3826507

  • manufacture_icon

    Manufacturer Code

    3070462

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


RM Stelflow Unvented Stainless Steel Cylinder, Direct, 150 Litres
Available In Stock More info
  • reference_icon

    Our Reference Code

    ST150DIR

  • manufacture_icon

    Manufacturer Code

    150D

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    RM Cylinders


Warmflow DIRECT Unvented Stainless Steel Hot Water Cylinder 210 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFDI210UV

  • manufacture_icon

    Manufacturer Code

    DI210UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


Ariston Classico STI210HE Unvented Glass Lined Steel Cylinder, Indirect, 210 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3060273

  • manufacture_icon

    Manufacturer Code

    3060381

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


HomeStyle Unvented Stainless Steel Cylinder, Indirect, 120 Litres
SAVE 40%
Available In Stock More info
  • reference_icon

    Our Reference Code

    RMS120I

  • manufacture_icon

    Manufacturer Code

    S120I

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    10 years guarantee

  • brand_icon

    Brand

    HomeStyle


Ariston Aquabravo ITD215 Unvented Stainless Steel Cylinder, Direct, 215 Litres
SAVE 53%
Available In Stock More info
  • reference_icon

    Our Reference Code

    ARIS3826505

  • manufacture_icon

    Manufacturer Code

    3070522

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Ariston


Warmflow INDIRECT Unvented Stainless Steel Hot Water Cylinder 120 LITRE
SAVE 31%
Available In Stock More info
  • reference_icon

    Our Reference Code

    WFIN120UV

  • manufacture_icon

    Manufacturer Code

    IN120UV

  • delivery_icon

    Usual Delivery Time

    Approx 3 Working Days

  • guarantee_icon

    Guarantee Period

    25 years guarantee

  • brand_icon

    Brand

    Warmflow


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