Tankless Water Heater Installation. When considering a gas tankless water heater, it is important to know in advance that installation may be more than if you go with an electric model because of the complexity of the venting system requires and the air supply requirements for combustion.nlike old tank-type water heaters that keep gallons and gallons of hot water heated twenty four hours a day, seven days a week, tankless water heaters only use energy to heat water as it is being used.
Hormone replacement therapy (HRT) HRT, also known as hormone therapy (HT) or menopausal hormone therapy (MHT), is medication containing the hormones that a womanâs body stops producing after menopause. HRT is used to treat menopausal symptoms.
Hormone replacement therapy (HRT) is given to some women whose estrogen and progesterone levels drop significantly because of the menopause. Estrogen and progesterone are hormones. HRT tops up a woman's levels of essential hormones.HRT may also refer to male hormonal treatment, as well as for individuals who undergo a sex change. This article focuses entirely on HRT for women whose problem is caused by the menopause. HRT with only estrogen-women who have had a hysterectomy where their uterus (womb) and ovaries have been removed do not need progesterone, because there is no risk of endometrial cancer.