Project data
Authors User:Mkhultin
Status Deployed
Completed 2009
Made? Yes
Replicated? No
Instance of Water heater
Download Open Know How Manifest
Page data
Type Project
Keywords dribble valves, efficiency, heat exchanger, open looped system, renewable energy systems, repair, Solar hot water heater, storage tank, 50 gallon gas back up, 80 gallon storage tank
SDG Sustainable Development Goals SDG06 Clean water and sanitation
SDG07 Affordable and clean energy
SDG09 Industry innovation and infrastructure
SDG12 Responsible consumption and production
Authors Megan Moore
User:Mkhultin
Published 2009
License CC-BY-SA-3.0
Language English (en)
Impact Number of views to this page. Views by admins and bots are not counted. Multiple views during the same session are counted as one. 264
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Hot Water Solar Repair Supervisor: Ben Scurfield

This solar hot water system was one of the first in Humboldt County. This system is over 30 years old and part of Arcata's pilot program for renewable energy systems. It had a slow leak from both of the dribble valves which are necessary for an open looped system. The advantage of an open looped system is added efficiency from not having a heat exchanger. The old valves were replaced after draining the collectors into a bucket from the drain outlet shown in the next picture. After being drained we replaced the dribble valves with minimum leakage and the problem was resolved.

System overview[edit | edit source]

  • 80 gallon storage tank
  • 50 gallon gas back up
  • Open loop system
  • Energy produced: 50,000 BTUs per day
  • Cost: Undetermined
  • Efficiency: 85%

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