Patients with mild aortic stenosis do not require treatment or restriction of activity. Patients with moderate aortic stenosis (valve area 1.5 to 1.0 square centimeters) are advised to avoid strenuous activities such as weight lifting or sprinting.hen symptoms of chest pain, syncope, or shortness of breath appear, the prognosis for patients with aortic stenosis without valve replacement surgery is poor.
A geothermal heat pump (GHP) is all electric, like your heat strips. Your heat strips make one unit of heat for one unit of electricity. A GHP actually pumps heat out of the Earth. So, for one unit of electricity, it will pump 3 to 5 units of heat into your home.
Â­Direct geothermal energy. In areas where hot springs or geothermal reservoirs are near the Earth's surface, hot water can be piped in directly to heat homes or office buildings. Geothermal water is pumped through a heat exchanger, which transfers the heat from the water into the building's heating system.