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Graham Chiu's user avatar
Graham Chiu's user avatar
Graham Chiu's user avatar
Graham Chiu
  • Member for 6 years, 3 months
  • Last seen more than 2 years ago
5 votes
2 answers
99 views

How to manage a largish hugelkultur?

5 votes
3 answers
74 views

Cost benefit analysis of a PV array with racking to set optimal angle, vs a larger array

4 votes
3 answers
96 views

What sort of pellet mill can be used for biofuels?

3 votes
1 answer
248 views

How more efficient are low surface temperature radiators than traditional boiler systems?

3 votes
0 answers
72 views

How does the afterheating function work for a solar hot water controller?

2 votes
0 answers
151 views

Lead nano carbon batteries over Lithium?

2 votes
1 answer
92 views

How to size an PV array?

1 vote
1 answer
442 views

Solar air heater inside the window?