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Heating and Cooling

Medieval Heating System Lives on in Spain

The expression “estar en la gloria” (to be inside the gloria) means that someone feels happy and comfortable.

The Curse of the Modern Office

The information society promises to dematerialise society and make it more sustainable, but modern office and knowledge work has itself become a large and rapidly growing consumer of energy and other resources

How to Keep Warm in a Cool House

If we are looking for quick and substantial energy savings for existing buildings, then local heating systems deserve our closest attention

Radiant & Conductive Heating Systems

Radiant and conductive heating systems make energy use independent of the size of a room or building.

Restoring the Old Way of Warming: Heating People, not Places

Most modern heating systems are primarily based on the heating of air. This seems an obvious choice, but there are far worthier alternatives.

The Revenge of the Circulating Fan

Cooling people by increasing local airflow is at least ten times more energy efficient than refrigerating the air in a given space.

Heat Your Clothes, Not Your House

The arrival of compact lithium-ion batteries has increased the performance and diversity of electrically heated clothing.

The Solar Envelope: How to Heat and Cool Cities without Fossil Fuels

Modern research, which combines ancient knowledge with fast computing techniques, shows that passive solar cities are a realistic option, allowing for surprisingly high population densities.

Insulation: First the Body, Then the Home

Modern thermal underclothing offers the possibility to turn the thermostat much lower without sacrificing comfort or sex appeal.

Sunbathing in the Living Room: Oven Stoves and Heat Walls

Oven stoves are greener, more efficient, healthier, safer and cosier than all modern heating systems. Why are they gone and how do we get them back?