beder bourahmah

This topic is particularly relevant to building houses in the middle east. The summer climate in my area has average high temperatures between 42 and 48 degrees C (107 to 118 degrees F). That is not to say that we don't get hotter temperatures.

The most effective and efficient strategies I have come across are underground construction and geothermal heat pumps. Shading is important as well.

When I tried to compare this new tankless water heater to the following:

http://www.ecosmartus.com/products/electric-tankless/eco-24-eco-27.aspx

I was frustrated that the two assumed different temperatures of incoming water. It would be convenient if tankless water heaters had standard testing conditions similar to those used for PV panels.

This heater does use far less current, so it can be used in houses that didn't have the ability to accommodate the higher power tankless water heaters currently on the market.