X1 System

The X-ternal sealed system boiler is based on the regular X-ternal model, but with the circulating pump, expansion vessel and safety valve conveniently located within its casing. The X-ternal System is ideal for the smaller property typical of many of today’s new builds where space inside the home is at a premium. It is available in a 12-16kW output. (Also available with a Cream coloured case, see product code X1 System Cream).

The new X1, X1 System is a fully X-Ternal wall hung boiler with a new Low Nox burner to conform to the latest EU Directives regarding low levels of Nitrogen Oxide. These models are based on the Wallstar 1 and share the same water jacket and burner thus ensuring they are a reliable alternative if a Wallstar 1 is not a viable option. The boiler comes with a remote lock out switch that can be sited within the property and the compact dimensions mean it can be fitted conveniently on most external walls.

Product Code	X1 System (Brown or Cream)
Number of Bedrooms	1, 2
Number of Bathrooms	1, 2
Heating System	Sealed
Circulating Pump	Grundfos UMP3
Condensate Drain	20mm
Condensate Trap	Included
Drain Socket	0.5" BSP
Expansion Vessel	7 Litres
Flow and Return	1" BSP, 22mm End Feed Return
Frost Thermostat	Included

Fuel	Class C2 (28 Second Kerosene)
Fuel Connection	10mm
Integrated Balanced Flue	Included
Manual Reset High Limit Thermostat	Included
Max Installation Height	2.5m From Tank Outlet
Non-Return Valve	Included
Oil Filter	Included
Output	12-16kW
Telescopic Flue & Wall Duct Range	210-340mm (+100mm Extension Kit Available)
Tigerloop / Deareator	Not required
Warranty	2 years parts & labour, 3 addl. years on Water Jacket

	Height	Width	Depth
Outside Casing	725mm	696mm	395mm

Technical Information	12kW	14kW	16kW
Nozzle	0.45 80^O EH	0.5 80^O EH	0.5 80^O EH
Oil Pressure	100 PSI	100 PSI	120 PSI
CO²	12% +/-1%	12% +/-1%	12% +/-1%
Inner Adjustment Assembly	No. 5	No. 5	No. 5