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.
If you have shingles, you're contagious until the last blister has dried and scabbed over. To help prevent the virus being passed on, avoid sharing towels or flannels, swimming or playing contact sports. You should also avoid work or school if your rash is oozing fluid (weeping) and can't be covered.