Detail showing heat exchangers used with domestic water system approximately 12 years old


It is common to see condensation on un-insulated sections of domestic water piping and fittings. Generally fittings are made of brass or stainless steel and these are not affected by some condensation; however, there will be an increased heat transfer rate due to condensation. Where carbon steel piping or fittings are used, the affects of condensation may be more serious. Also, condensation can damage building elements such as drywall, ceiling tile and concrete below dripping pipes. On this image, note the build up of deposits on the heat exchangers.