Heatrae Sadia Amptec U401 Underfloor Electric 4kW Boiler 

Compact and unobtrusive, Amptec works with standard radiators, programmers, circulating pumps, room thermostats and thermostatic radiator valves, to heat water for radiator or underfloor heating systems. Amptec is available in a range of kW sizes and is ideal for extensions, loft conversions, conservatories and garages where space is at a premium

• Models available for underfloor heating systems
• Domestic hot water from boiler in conjunction with an indirect cylinder or separate direct cylinder
• No flue and no fuel tanks means flexible installation location
• With no flue, no heat is wasted up the chimney, making Amptec electric flow boilers 99.8% efficient
• Compact and light weight for ease of installation
• Silent in operation
• The boiler has a front panel indication to show boiler state
• Solid state technology with no moving parts for long life
• Soft start and zero volt switching to avoid power surges
• Min / max control adjusts the water temperature output from the boiler
• Minimal service and maintenance costs
• No requirement for annual safety certificate
• Two year on-site parts and labour warranty