Air conditioning earth tubes

A simple underground PVC pipe, often called an "earth tube" or "ground coupled heat exchanger" can potentially reduce your cooling bills by using the earth's near constant temperature to precondition outside air coming into your home. The same system can be used to reduce heating costs in the winter.

Share optionsAbout EAT Earth air tunnel or earth air heat exchanger is a pre-cooling or pre-heating system which consists of a pipe or network of pipes buried at reasonable depth below the ground surface. It either cools the air by rejecting heat to the ground or heats the air absorbing heat from the ground. It

Underground House Heating and Air Conditioning Ventilation Tubes Homesteading - The Homestead Survival .Com "Please Share This Pin"

This goes back to something the Romans actually did. It is called a solar chimney. It turns out that the soil about 5 feet underground remains a constant temperature year round. For instance, on the southern tip of Vancouver Island it is about 52 F year round. We don't really need air conditioning though. But a lot of furnaces bring in fresh air, so why not preheat that air from 30 F up to 52 F? So, we could use part of this system as well. With the solar chimney, the sun heats the air in a…

I saw my first “earth tube” back in 2004, on a tour of row houses in Darmstadt, Germany — a tour which had been organized by the Passivhaus Institut (PHI) to show international visitors some examples of Passivhaus construction. As a visiting Canadian engineer specializing in residential energy efficiency, this was a novel and, for me, unheard-of way to temper incoming ventilation air from extremes of heat and cold.

Earth Tubes are buried in the earth for the purpose of exchanging heat between the air in the tubes and the earth, aka "Earth Air Heat Exchangers" (EAHX).

Ground to Air Heat Transfer (GAHT) geothermal greenhouse systems provide your greenhouse with renewable energy at a fraction of the cost of traditional energy. Learn more.

In this blog post, we are taking the opportunity to tell you everything you need to know about geothermal heat pumps.