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Forum: Solar Heating 01-06-21, 02:49 AM
Replies: 6
Views: 978
Posted By u3b3rg33k
PEX wouldn't work so great, copper would be fine....

PEX wouldn't work so great, copper would be fine. plenty of old oil fired systems used those without issue (well, until they caked up with minerals). it's all about rate of heat transfer.
Forum: Conservation 09-22-19, 11:27 PM
Replies: 95
Views: 19,506
Posted By u3b3rg33k
now hear this: Daimler Ends Gas Engine...

now hear this: Daimler Ends Gas Engine Development: Full Focus On Electric Cars
https://insideevs.com/news/371793/daimler-no-gas-engine-electric-only/

Remember, it's just a fad tho.
Forum: Other Improvements 09-10-19, 10:25 AM
Replies: 4
Views: 2,443
Posted By u3b3rg33k
"edison batteries" are Nickel-Iron. my...

"edison batteries" are Nickel-Iron.

my understanding is that they're extremely durable, but low energy density and high self discharge. to get a battery bank big enough to be useful (start up...
Forum: Conservation 09-05-18, 10:35 PM
Replies: 35
Views: 11,470
Posted By u3b3rg33k
a 300W blower motor that contributes its waste...

a 300W blower motor that contributes its waste heat as strip heat shouldn't hurt COP much. either way those must be some really poor heat pumps. I know people much further north than TX that are in...
Forum: Solar Heating 08-05-18, 03:09 AM
Replies: 8
Views: 3,956
Posted By u3b3rg33k
if you want to use PV solar to heat water, why...

if you want to use PV solar to heat water, why not a heat pump water heater? 1500W worth of heat on only 500W worth of solar.
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