Using the sun's energy to heat water will save you energy, lower your hot water bills (up to 60% off), and reduce greenhouse pollution. You can now convert almost any existing gas or electric water service to solar.
Solar water heaters are generally equipped with gas or electric boosters to ensure you are never without hot water. Technology advances in recent years mean systems are now 20% more efficient than their counterparts of 30 years ago and frost problems have now been eliminated.
Masonry walls must rest on a foundation, footers or concrete slab. The foundation must be clean so the mortar will adhere to it. It should also be relatively level.
Taking measurements from the foundation or floor plan, and transferring those to the foundation, footing or floor slab is the first step in laying out the wall. The openings for doors and windows must be placed exactly. It is important that the corners be set on the foundation exactly as given on the detail drawing on the foundation plan.