But what makes it such a viable heating alternative, and how does it work? Quite simply, the Air Source Heat Pump (ASHP) has a motor powered by electricity that supplies more energy than it consumes when it extracts heat from the surrounding air. For every unit of energy purchased as electricity, several units of heat are delivered, making it up to four times more effective.

User friendly

From a user’s perspective, when compared to traditional means of domestic heating, ASHP are easy to install, reduces CO2 emissions by up to 50% and offers a 30% saving on running costs. This is only made possible through the application of the most advanced heating technology in production to date.

Outstanding benefits over traditional boilers

• 30 - 50% reduction in CO2 emissions
• Low running costs
• Easy to install – self contained unit only requiring water and electric connections
• No gas supply, flues or ventilation required
• No need for groundwork or external pumps
• Single phase power supply with a low starting current
• Ideal for underfloor heating or low temperature radiators
• Low maintenance
• Reduced VAT from 17.5% to 5% for domestic applications
• Comparable installation costs to a modern gas-fired condensing boiler
• Low noise

Saving energy and preventing pollution

It works in a very similar way to a domestic refrigerator, utilising a working fluid driven around a refrigerant circuit containing four components - an evaporator, a compressor, a condenser and an expansion valve. The refrigerant liquid circulating within the system has a boiling point as low as -40°C and evaporates when absorbing heat from ambient air. This means it’s possible to extract considerable heat from extremely low temperatures. The resulting refrigerant gas is then compressed, adding more heat energy and raising its temperature to around 60°C. This heat is then passed via the heat exchanger into your home for use in your hot water cylinder.

Unique efficiency

This unique product consists solely of one neat, compact unit, complete with refrigerant. The 3 and 5kW are suitable for Domestic Hot Water (DHW) and can be sited internally or externally.

This product can be easily installed in a loft space or externally (with optional adjustable fixing bracket) and quickly plumbed into an indirect cylinder. For those wanting DHW and heating, a 7kW and12kW models are available which is also suitable for under floor heating, this model can only be sited externally. The ASHP is the modern way to harvest yet another natural resource - it satisfies the need to move heat from ambient air, where it’s not needed, into the house where it can become an integral part of our domestic comfort in a completely safe and reliable way.

Technology

Air source heat pumps are a type of heat pump which transfer energy in the form of heat from one location (an open space) to another (a heat sink). A heat pump uses the refrigeration process (is applied by transferring) and transfers low temperature energy to a refrigeration loop, compresses the gases(heat) to a high temperature and transfers this heat to the hot water and heating distribution system (device called a heat sink). Systems normally range from a single 4kW unit to multiple units with a single controller producing around 300kW. (Domestic) hot water storage is also provided using 180 to 1000 litre pressurized vessels designed specifically for Heat Pumps.