outdoor tankless water heater

Are outdoor tankless water heaters allowed on a zero lot line wall? I know windows are not allowed, but a neighbor just installed a tankless heater on the outside wall.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
replying to Angelica Tagle, Iggy wrote: Call the Municipality and see what they say, especially if the Homeowner installed it themselves. If both a Professional Looking (uniform, namesake truck and tools galore) Electrician and Plumber installed it, then it's probably all cool. But still, no harm in checking and getting the Municipality to have it ripped out, only if illegal.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com 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.