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Unvented Hot Water Cylinders

At Discounted Heating, we carry a huge selection of unvented hot water cylinders that are perfect as part of a lower budget yet high performing heating system with improved flow rates. Our collection includes a vast range of different sizes and capacities, from 120 litres to 800 litres, so there’s no shortage on choice.

You can choose from big names in the industry, such as Ariston, Vaillant and Heatrae Sadia, who have earned longstanding reputations for both high quality and high performance. We also stock a whole host of different unvented hot water cylinders, including direct and indirect cylinders as well as solar cylinders, so we’re confident that you’ll be able to find exactly what you’re looking for.

Be sure to take a look at our full assortment of unvented hot water cylinders and find your ideal home heating solution online today at Discounted Heating. 

Heatrae Sadia 95050475 Unvented Cylinders
-10%
Lifetime cylinder guarantee, Constructed from Duplex stainless steel pressure tested to 15 bar, Pate..
£1,385.27 £1,246.80
Ex Vat: £1,039.00
Heatrae Sadia 95050499 Unvented Cylinders
-6%
The time saving MEGAFLO Eco SystemReady 170SB package not only speeds installation but significantly..
£1,167.13 £1,099.00
Ex Vat: £915.83
Heatrae Sadia 95050500 Unvented Cylinders
The time saving MEGAFLO Eco SystemReady 210SB package not only speeds installation but significantly..
£1,303.30
Ex Vat: £1,086.08
Heatrae Sadia 95050713 Unvented Cylinders
Product Description Megaflo eco units are designed and manufactured to a very high quality using ..
£1,997.83
Ex Vat: £1,664.86
Heatrae Sadia 94050302 Unvented Cylinders
Product Description Santon Premier Plus System Fit 170SF Unvented Indirect Cylinder. Product D..
£1,150.01
Ex Vat: £958.34
Heatrae Sadia 94050303 Unvented Cylinders
-6%
Product Description PremierPlus SystemFit has been designed to significantly reduce installation ..
£1,279.19 £1,198.70
Ex Vat: £998.92
Range TI120 Unvented Cylinders
Product Description Range Tribune EuP pre-plumbed cylinders are designed for fast and simple inst..
£666.48
Ex Vat: £555.40
Ariston 3060398 Unvented Cylinders
-8%
Looking for a Unvented Cylinders then the Ariston Classico STD125 125ltr Direct Cylinder & Kit E..
£379.99 £351.00
Ex Vat: £292.50
Ariston 3060399 Unvented Cylinders
Product Description The Ariston Classico Direct Unvented Enamel Lined Steel Hot Water Cylinder 30..
£363.00
Ex Vat: £302.50
Ariston 3060381 Unvented Cylinders
Product Description The Ariston Classico Indirect Unvented Enamel Lined Steel Hot Water Cylinder ..
£486.00
Ex Vat: £405.00
10 Days Lead Time
Heatrae Sadia 95050498 Unvented Cylinders
The time saving MEGAFLO Eco SystemReady 145SB package not only speeds installation but significantly..
£1,018.90
Ex Vat: £849.08
Heatrae Sadia 95050711 Unvented Cylinders
Product Description: Megaflo eco units are designed and manufactured to a very high quality using..
£1,449.00
Ex Vat: £1,207.50
Heatrae Sadia 95050712 Unvented Cylinders
Product Description Megaflo eco units are designed and manufactured to a very high quality using ..
£1,980.97
Ex Vat: £1,650.81
Heatrae Sadia 95050501 Unvented Cylinders
This highly efficient Heatrae Sadia Megaflo Eco SystemReady unvented cylinder is the ideal solution ..
£1,325.98
Ex Vat: £1,104.98
Worcester Bosch 7716842036 Unvented Cylinders
The New Stainless steel Greenstore Cylinders from Worcester are manufactured by Bosch and guaranteed..
£959.00
Ex Vat: £799.17
Ariston 3060380 Unvented Cylinders
Product Description: The Ariston Classico Indirect Unvented Enamel Lined Steel Hot Water Cylinder..
£438.00
Ex Vat: £365.00
10 Days Lead Time
Ariston 3070464 Unvented Cylinders
-6%
Ariston 3070464 Aquabravo ITI150 Indirect Unvented ErP Cylinder With Kit Features Heated by..
£563.99 £528.70
Ex Vat: £440.58
Heatrae Sadia 94050814 Unvented Cylinders
Replaces Model: Santon 94050332 (175405) Product Description: Manufactured to the highest stan..
£749.99
Ex Vat: £624.99
Santon 94050331 Unvented Cylinders
The Premier Plus is manufactured from high grade stainless steel which offers exceptional corrosion ..
£699.00
Ex Vat: £582.50
Sapphire 94050557 Unvented Cylinders
-3%
Product Description The unit has a stainless steel inner vessel, which ensures an excellent stand..
£477.80 £462.00
Ex Vat: £385.00
Albion 179665 Unvented Cylinders
Albion Ultrasteel Unvented Direct AUI 300 Ltr Cylinder Product Details - Height: 2032mm - Dia..
£684.84
Ex Vat: £570.70
Albion AUI 250 Unvented Cylinders
-3%
Albion Ultrasteel Unvented Indirect AUI 250 Ltr Cylinder Product Details - Height: 1719mm - D..
£668.23 £648.70
Ex Vat: £540.58
Flamco FC DIR SS 210 Unvented Cylinders
Flamco Supastor Direct Unvented Hot Water Cylinder - 210L Product Details - Height: 1340mm - ..
£1,189.00
Ex Vat: £990.83
Heatrae Sadia 95050465 Unvented Cylinders
-13%
Heatrae Sadia 95050465 Megaflo Eco 145L Unvented Indirect Hot Water Cylinder Product Details: ..
£1,000.06 £874.80
Ex Vat: £729.00
Unvented, Cylinders
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