An "ab anbar" is a traditional underground water cistern used in #Iran and neighboring regions to store and cool #water, particularly in #arid climates. These structures were often connected to #qanats (underground water channels) and constructed using materials like sarooj (a waterproof mortar) and thick insulating walls to maintain cool temperatures.

Key features include:

Storage Tank: Cylindrical or rectangular, lined with waterproof materials.

#Windcatchers: Ventilation towers that create airflow to cool the water.

Dome Roofs: Provide insulation and structural stability.

Stairways: Allow access for retrieving water.

Ab anbars are sustainable, preserving water quality and temperature year-round.

#Passive_Systems

#Decentralization

#Bitcoin

#Nostr

#Permaculture

#Grownostr

#Persia