The Urban Heat Harvester is an innovative concept to cool cities by harvesting waste heat by withdrawing thermal pollution from the urban atmosphere via city buildings utilizing their air-conditioning systems.

Thus moderating urban climate extremes and heat-stress experiences, increasingly livability and
reducing energy use for cooling.

While simultaneously recycling and transforming the heat into zero-emission renewable energy and energy equivalent (to heat water) by means of an Urban Heat Harvesting (UHH) device.

How can heat pollution be captured and re-used?

1. Capture the heat pollution

Draw waster heat from Urban Heat Island via building air-conditioning systems and capture at rooftop outlets of:

• offices
• high-rise residential buildings
• hospitals
• shoping malls
• cinemas
• libraries
• sport arenas
• train and bus stations
• airports

2. Convert or transform the heat pollution:

• The Urban Heat Harvester technology converts and transforms waste heat into electrical energy, and captures the remaining heat to warm water.

Heat extracted from inside buildings via air conditioners is not removed from the city but simply concentrated and displaced: from the inside to the outside.

In a summer's day in NYC when the air temperature is 32C/90F, the waste heat at street-level air-conditioner exhausts of CBD buildings is ±58C/136F – substantially hotter than the ambient temperature.

Each air-conditioner pumps superheated air out into the city.

There are in NYC alone, 6000 high rise, and 10 000 medium rise (approx 10 stories) buildings that are all pumping out such concentrated heat, not to mention all the individual window airconditioners.