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A comment on What's that touchscreen in my room?. Parent comment

Re:What's that touchscreen in my room? by quickthrowman on Saturday January 20, 2024 @07:17PM (#39074065)
On mechanical blueprints, HWS is the acronym I see used for hydronic heating, and DHW is what I see used for domestic hot water. I’m unsure what the OP meant.
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