Increasingly, homebuilders are taking a responsible attitude to conserving the earth's natural resources; as such Aileen and Dave Downie set out to build a house that would incorporate the best modern eco-technology, be warm and comfortable all year round and economical to run.

A combination of:

• Nu-Heat warm water underfloor heating


• Very high levels of insulation


• Weather compensating boiler
• Controlled whole-house ventilation with heat recovery system


• Energy efficient glazing

All of the measures ensure a steady 70ºC has been realised with heating bills of just £37 per year.

The Downies are both committed to energy conservation, renewable materials and the health benefits of eco-friendly living all of which they have achieved without compromising style or comfort. Siting the main living areas on the first floor makes the most of both the natural light and the spacious open vaulted ceiling and aids in the efficient flow of heat around the building. The ground floor bedrooms are "cooler in summer and cosier in winter".

The project has been such a success the couple are now planning to start a specialist business designing and building energy-efficient houses for others to enjoy.