HHWS

(redirected from Heating Hot Water Supply)
AcronymDefinition
HHWSHeating Hot Water Supply (plumbing)
HHWSHeat Health Warning System
References in periodicals archive ?
Photo 1 shows corrosion on a preinsulated heating hot water supply ductile iron joint after being buried for 18 years.
Photo 2 shows corrosion on a preinsulated heating hot water supply ductile iron joint after being buried for 10 years at a different site.