What does HHWR stand for?
HHWR stands for "Heating Hot Water Return"
How to abbreviate "Heating Hot Water Return"?
"Heating Hot Water Return" can be abbreviated as HHWR
What is the meaning of HHWR abbreviation?
The meaning of HHWR abbreviation is "Heating Hot Water Return"
What does HHWR mean?
HHWR as abbreviation means "Heating Hot Water Return"
