Atag iSteel Twin Coil Cylinders


Perfect for all system applications.
These indirect cylinders are compatible with our iS system, iR regular boilers and solar systems and are available in 150-300 litre capacity.

Specification Details

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that ATAG Heating UK is consulted before specifying.

ATAG Heating UK
Unit 3, Beaver Trade Park, Quarry Lane, Chichester, West Sussex, PO19 8NY


Atag iSteel Twin Coil Cylinders

CY700150
• Heat Exchanger: 16.46 kW
• Immersion Reheat: 57 Mins
• Indirect Reheat: 17 Mins
• Solar Volume: 77 l
• Standing Loss: 1.26 kWh/day
• Water Storage: 150 l
• ErP Water Heating Energy Efficiency Class: B
• Diameter: 545 mm
• Height: 1140 mm
• Net Weight: 36 Kg
• Weight: 183 kg
• Product ID Number: CY700150
• Warranty: 25 years
• Uniclass: Pr_60_50 Tank, cylinder and vessel products

CY700180
• Heat Exchanger: 18.55 kW
• Immersion Reheat: 80 Mins
• Indirect Reheat: 20 Mins
• Solar Volume: 95 l
• Standing Loss: 1.4 kWh/day
• Water Storage: 180 l
• ErP Water Heating Energy Efficiency Class: B
• Diameter: 545 mm
• Height: 1320 mm
• Net Weight: 38 Kg
• Weight: 215 kg
• Product ID Number: CY700180
• Warranty: 25 years
• Uniclass: Pr_60_50 Tank, cylinder and vessel products

CY700210
• Heat Exchanger: 18.55 kW
• Immersion Reheat: 93 Mins
• Indirect Reheat: 22 Mins
• Solar Volume: 101 l
• Standing Loss: 1.54 kWh/day
• Water Storage: 210 l
• ErP Water Heating Energy Efficiency Class: B
• Diameter: 545 mm
• Height: 1510 mm
• Net Weight: 42 Kg
• Weight: 249 kg
• Product ID Number: CY700210
• Warranty: 25 years
• Uniclass: Pr_60_50 Tank, cylinder and vessel products

CY700250
• Heat Exchanger: 22 kW
• Immersion Reheat: 113 Mins
• Indirect Reheat: 25 Mins
• Solar Volume: 107 l
• Standing Loss: 1.76 kWh/day
• Water Storage: 250 l
• ErP Water Heating Energy Efficiency Class: B
• Diameter: 595 mm
• Height: 1720 mm
• Net Weight: 51 Kg
• Weight: 298 kg
• Product ID Number: CY700250
• Warranty: 25 years
• Uniclass: Pr_60_50 Tank, cylinder and vessel products

CY700300
• Heat Exchanger: 22 kW
• Immersion Reheat: 139 Mins
• Indirect Reheat: 34 Mins
• Solar Volume: 121 l
• Standing Loss: 2.03 kWh/day
• Water Storage: 300 l
• ErP Water Heating Energy Efficiency Class: B
• Diameter: 595 mm
• Height: 1980 mm
• Net Weight: 60 Kg
• Weight: 358 kg
• Product ID Number: CY700300
• Warranty: 25 years
• Uniclass: Pr_60_50 Tank, cylinder and vessel products

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