More on tankless water heaters

just how does anyone specifically determine water heating savings, usage varies, incoming water temperature varies, fuel costs vary. there are too many variables to pin down.
if one compares the energy guide lablels a 50% savings isnt possible.
at most about 30%
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.