Unvented hot water cylinders are now the most popular option for new hot water systems and operate at the same mains pressure as the incoming cold water supply (typically 3 bar or so) and therefore provide excellent water flow rates without requiring an header tank in the loft space or additional pumps. In 'indirect' units the heat source is an external boiler that circulates hot water through a coil heat exchanger within the cylinder. In practice indirect units also have an electric immersion heater as a back-up in case of boiler failure. Indirect cylinders are generally more expensive to purchase and install but usually result in faster reheat times as much more heating power is normally available from a boiler than from electric immersion heaters.
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Ariston Classico 125L Indirect
Quality steel tank, 12 bar Pressure tested and exclusive vitreous enamel coating (glass lining). Environmentally sound and highly efficient thermal insulation. All plumbing and electrical connections within a 90° angle. Magnesium anode to protect against corrosion. Immersion heaters supplied with regulation thermostats and dual pole thermal cut-outs. Factory fitted 1/2" Temperature and Pressure relief valve. Unvented control kit supplied with cylinder. Simple installation. 5 year tank guarantee (2 year guarantee on electrical components).
Capacity 125 Litres | Elements 1 x 3kW | Dimensions 995 x 505 x 505mm (H x W x D)
Size:
Single
Order Code:
STI125-WW
Price:
£410.00
Price inc. VAT:
£481.75
Ariston Primo Stainless Steel 100L Indirect
Quality stainless steel tank
12 bar pressure tested.
Environmentally sound and highly efficient thermal insulation. Compact design - slimmest available on the market (up to 200 litres).
All plumbing and electrical connections within a 90° angle. Exclusive high quality ‘orange-peel’ outer finish. Immersion heaters supplied with regulation thermostat and dual pole thermal cut-out. Factory fitted 1/2” T&P relief valve. Unvented control kit supplied with cylinder. Simple installation. 25 year tank guarantee. 2 year guarantee on electrical components.
Capacity 100 Litres | Elements 1 x 3kW | Dimensions 845 x 555 x 555mm (H x W x D)
Size:
Single
Order Code:
ITI100-WW
Price:
£459.00
Price inc. VAT:
£539.33
Ariston Primo Stainless Steel 125L Indirect
Quality stainless steel tank
12 bar pressure tested.
Environmentally sound and highly efficient thermal insulation. Compact design - slimmest available on the market (up to 200 litres).
All plumbing and electrical connections within a 90° angle. Exclusive high quality ‘orange-peel’ outer finish. Immersion heaters supplied with regulation thermostat and dual pole thermal cut-out. Factory fitted 1/2” T&P relief valve. Unvented control kit supplied with cylinder. Simple installation. 25 year tank guarantee. 2 year guarantee on electrical components.
Capacity 125 Litres | Elements 1 x 3kW | Dimensions 995 x 505 x 505mm (H x W x D)
Size:
Single
Order Code:
ITI125-WW
Price:
£473.00
Price inc. VAT:
£555.78
Ariston Primo Stainless Steel 150L Indirect
Quality stainless steel tank
12 bar pressure tested.
Environmentally sound and highly efficient thermal insulation. Compact design - slimmest available on the market (up to 200 litres).
All plumbing and electrical connections within a 90° angle. Exclusive high quality ‘orange-peel’ outer finish. Immersion heaters supplied with regulation thermostat and dual pole thermal cut-out. Factory fitted 1/2” T&P relief valve. Unvented control kit supplied with cylinder. Simple installation. 25 year tank guarantee. 2 year guarantee on electrical components.
Capacity 150 Litres | Elements 1 x 3kW | Dimensions 1165 x 505 x 505mm (H x W x D)
Size:
Single
Order Code:
ITI150-WW
Price:
£488.00
Price inc. VAT:
£573.40
Santon PremierPlus Unvented Water Heater - 100L Indirect
Manufactured to the highest standards from high grade Duplex stainless steel, the units offer exceptional corrosion resistance and a long life expectancy. It provides mains pressure showering and is suitable for use in new build or refurbishment schemes for domestic or commercial applications. PremierPlus has been designed with features that benefit specifiers, installers and end users. These benefits combine to make PremierPlus exceptional value for money. 25 year cylinder guarantee. Mains pressure hot water for balanced supply to showers and mixers - no shower pump to consider. High flow rates give improved hot water delivery. Complete package incorporates safety and hot water controls.
Capacity 100 Litres | Elements 1 x 3kW | Dimensions 784 x 550 x 550mm (H x W x D)
Size:
Single
Order Code:
PP100BIND-WW
Price:
£491.00
Price inc. VAT:
£576.93
Santon PremierPlus Unvented Water Heater - 120L Indirect
Manufactured to the highest standards from high grade Duplex stainless steel, the units offer exceptional corrosion resistance and a long life expectancy. It provides mains pressure showering and is suitable for use in new build or refurbishment schemes for domestic or commercial applications. PremierPlus has been designed with features that benefit specifiers, installers and end users. These benefits combine to make PremierPlus exceptional value for money. 25 year cylinder guarantee. Mains pressure hot water for balanced supply to showers and mixers - no shower pump to consider. High flow rates give improved hot water delivery. Complete package incorporates safety and hot water controls.
Capacity 120 Litres | Elements 1 x 3kW | Dimensions 906 x 550 x 550mm (H x W x D)
Size:
Single
Order Code:
PP120BIND-WW
Price:
£508.00
Price inc. VAT:
£596.90
Ariston Primo Stainless Steel 175L Indirect
Quality stainless steel tank
12 bar pressure tested.
Environmentally sound and highly efficient thermal insulation. Compact design - slimmest available on the market (up to 200 litres).
All plumbing and electrical connections within a 90° angle. Exclusive high quality ‘orange-peel’ outer finish. Immersion heaters supplied with regulation thermostat and dual pole thermal cut-out. Factory fitted 1/2” T&P relief valve. Unvented control kit supplied with cylinder. Simple installation. 25 year tank guarantee. 2 year guarantee on electrical components.
Capacity 175 Litres | Elements 1 x 3kW | Dimensions 1335 x 505 x 505mm (H x W x D)
Size:
Single
Order Code:
ITI175-WW
Price:
£519.00
Price inc. VAT:
£609.83
Santon PremierPlus Unvented Water Heater - 150L Indirect
Manufactured to the highest standards from high grade Duplex stainless steel, the units offer exceptional corrosion resistance and a long life expectancy. It provides mains pressure showering and is suitable for use in new build or refurbishment schemes for domestic or commercial applications. PremierPlus has been designed with features that benefit specifiers, installers and end users. These benefits combine to make PremierPlus exceptional value for money. 25 year cylinder guarantee. Mains pressure hot water for balanced supply to showers and mixers - no shower pump to consider. High flow rates give improved hot water delivery. Complete package incorporates safety and hot water controls.
Capacity 150 Litres | Elements 1 x 3kW | Dimensions 1090 x 550 x 550mm (H x W x D)
Size:
Single
Order Code:
PP150BIND-WW
Price:
£524.00
Price inc. VAT:
£615.70
Range Tribune 90L Indirect
High flow-rate controls - ideal for multiple bathrooms & power showering. Fast reheat and high insulation values resulting in high efficiency. A complete package - just add pipework. Duplex stainless steel for ultimate peace of mind. Fully transferable 25 year guarantee.
Capacity 90 Litres | Elements 1 x 3kW | Dimensions 718 x 550 x 550mm (H x W x D)
Size:
Single
Order Code:
TI90-WW
Price:
£548.00
Price inc. VAT:
£643.90
Santon PremierPlus Unvented Water Heater - 170L Indirect
Manufactured to the highest standards from high grade Duplex stainless steel, the units offer exceptional corrosion resistance and a long life expectancy. It provides mains pressure showering and is suitable for use in new build or refurbishment schemes for domestic or commercial applications. PremierPlus has been designed with features that benefit specifiers, installers and end users. These benefits combine to make PremierPlus exceptional value for money. 25 year cylinder guarantee. Mains pressure hot water for balanced supply to showers and mixers - no shower pump to consider. High flow rates give improved hot water delivery. Complete package incorporates safety and hot water controls.
Capacity 170 Litres | Elements 1 x 3kW | Dimensions 1216 x 550 x 550mm (H x W x D)
Unvented hot water cylinders are now the most popular option for new hot water systems and operate at the same mains pressure as the incoming cold water supply (typically 3 bar or so) and therefore provide excellent water flow rates without requiring an header tank in the loft space or additional pumps. In 'indirect' units the heat source is an external boiler that circulates hot water through a coil heat exchanger within the cylinder. In practice indirect units also have an electric immersion heater as a back-up in case of boiler failure. Indirect cylinders are generally more expensive to purchase and install but usually result in faster reheat times as much more heating power is normally available from a boiler than from electric immersion heaters.
Direct Units 
Quality steel tank, 12 bar Pressure tested and exclusive vitreous enamel coating (glass lining). Environmentally sound and highly efficient thermal insulation. All plumbing and electrical connections within a 90° angle. Magnesium anode to protect against corrosion. Immersion heaters supplied with regulation thermostats and dual pole thermal cut-outs. Factory fitted 1/2" Temperature and Pressure relief valve. Unvented control kit supplied with cylinder. Simple installation. 5 year tank guarantee (2 year guarantee on electrical components).
Manufactured to the highest standards from high grade Duplex stainless steel, the units offer exceptional corrosion resistance and a long life expectancy. It provides mains pressure showering and is suitable for use in new build or refurbishment schemes for domestic or commercial applications. PremierPlus has been designed with features that benefit specifiers, installers and end users. These benefits combine to make PremierPlus exceptional value for money. 25 year cylinder guarantee. Mains pressure hot water for balanced supply to showers and mixers - no shower pump to consider. High flow rates give improved hot water delivery. Complete package incorporates safety and hot water controls. 
High flow-rate controls - ideal for multiple bathrooms & power showering. Fast reheat and high insulation values resulting in high efficiency. A complete package - just add pipework. Duplex stainless steel for ultimate peace of mind. Fully transferable 25 year guarantee.
