System boiler | Tools

The Sentinel X100 is a powerful, concentrated corrosion inhibitor and limescale control solution. This versatile one-litre bottle effectively prevents the buildup of rust and scale in central heating systems while also protecting pipes from damage.

Honeywell ST9400C is a 7-day, 2-channel programmer for heating and hot water systems. It allows you to schedule up to three on/off events per day, providing precise control over your home's energy consumption.

Rapid in-line installation providing exceptional central heating protection - In-line installation - In just two minutes - Versatile installation options - Compact installation for tight spaces - Low profile drain valve, easier servicing and dosing

Rapid in-line installation providing exceptional central heating protection - Designed for larger heating systems - Versatile installation options - Greater filter capacity - Low profile drain valve, easier servicing and dosing

Worcester Greenstar 8000 Style 35kW natural gas boiler in black, designed for system heating. Model number 7738100838.

Worcester (4057749783899)