The installation cost for energy efficient heaters such as the tank-less or on-demand heaters is a little higher. In case of an on-demand unit, the average cost will lie in between $3200-$4500. Tank-less heaters on the other hand begin from $2800 and end at $3800.
191 Followers. A. Shingles is contagious and can be spread from an affected person to babies, children, or adults who have not had chickenpox. But instead of developing shingles, these people develop chickenpox. Once they have had chickenpox, people cannot catch shingles (or contract the virus) from someone else.
Shingles itself is not contagious, but the varicella zoster virus can be spread from a person with shingles and cause chicken pox in a person who has never had chicken pox or been vaccinated. This would only be possible through direct contact with fluid from the blisters of the shingles rash.