Keston System 2 S30

Efficient and easy to install, the Keston System 2 S30 twin flue boiler is a dependable solution for new and replacement heating systems.

 This condensing system boiler is lightweight and compact, making it quick to fit even in problematic installations.

For homeowners, S30 is a simple and reliable home heating boiler thanks to its dependable build and improved user-friendly controls.

Width: 395mm
Height: 700mm
Depth: 278mm
Weight: 31.3kgs  (packed)
Output: 30kw

THE FACTS
 • 7 year warranty†
 • Easy to see pressure gauge
 •  Large backlit display with user friendly controls
 • Low lift weight
 •  Low component count maximising reliability
 • Compact dimensions
 • Twin flue up to 27m**
 •  50mm muPVC (PVC-C) solvent weld flue allowing simple, cost effective installations***
 •  Weather compensation supplied as standard
 • Inbuilt frost protection
 • Fully modulating
 • LPG conversion kit available

 † 7 year warranty when installed with a Keston 22mm System Filter and registered within 30 days of 
installation. 5 year parts & labour warranty as standard. Terms and conditions apply.* Please check 
cupboard size prior to installation.** For the maximum total equivalent flue length, please refer to 
the installation manual.*** The only systems approved for this application are: Marley muPVC (PVC-C) 
Solvent Weld Waste System (50mm), Polypipe System 2000 muPVC (PVC-C) Solvent Weld Waste 
System (50mm), Polypipe Terrain Solvent Weld System (50mm) and Wavin Osma PVC-C Solvent 
Weld System (50mm). Please use the recommended Solvent Weld Cement for each system.

The following minimum clearances must be maintained for 
operation and servicing.
 Front of boiler - 450mm†
 Sides of boiler - 2.5mm
 Above boiler - 350mm, with 30mm above the flue
 Below boiler - 100mm†