The Hyco SF3 water heater kit is compatible with the 5, 10, and 15 litre Hyco Speedflow Water Heaters. It includes a 2 litre potable expansion vessel and a Floguard 15mm brass single check valve, resistant to dezincification.

• Designed for use with Speedflow unvented water heaters
• 2 litre expansion vessel pre-set to 3.5 bar
• Includes a one-way check valve
• Needed when hot water expansion can’t be absorbed by the pipework
• Expansion vessel weight: 1.0 kg; check valve weight: 0.1 kg

*See Technical Attachments for more precise parameters and conditions.