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Search: Posts Made By: u3b3rg33k
Forum: Conservation 10-06-19, 01:07 AM
Replies: 13
Views: 1,427
Posted By u3b3rg33k
I'd love to see some numbers to back up that...

I'd love to see some numbers to back up that "fact".
Forum: Renovations & New Construction 09-26-19, 02:48 PM
Replies: 2
Views: 279
Posted By u3b3rg33k
deteriorated carpet pad?

deteriorated carpet pad?
Forum: Conservation 09-22-19, 11:27 PM
Replies: 77
Views: 5,918
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: Conservation 09-16-19, 10:21 PM
Replies: 77
Views: 5,918
Posted By u3b3rg33k
You say that, but look at VAG/Jag. Tesla has a...

You say that, but look at VAG/Jag. Tesla has a huge head start, and makes their own chemistry in house. They've also made substantial improvements in recent history. the others are all buying from...
Forum: Conservation 09-15-19, 12:02 AM
Replies: 77
Views: 5,918
Posted By u3b3rg33k
So far it looks like Tesla is king of battery...

So far it looks like Tesla is king of battery quality/performance. not that more competition isn't fantastic. about time we replaced some gas trucks with electric!
Forum: Other Improvements 09-10-19, 10:25 AM
Replies: 4
Views: 262
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: Appliances & Gadgets 09-08-19, 10:03 PM
Replies: 11
Views: 577
Posted By u3b3rg33k
I've always wanted one of these. exhausting...

I've always wanted one of these. exhausting 400cfm of air I paid to heat twice in the winter for an hour seems a bit wasteful.
Forum: Other Improvements 09-08-19, 02:28 PM
Replies: 4
Views: 262
Posted By u3b3rg33k
Nickel Iron batteries? i've heard of them, i...

Nickel Iron batteries? i've heard of them, i think the main issue is $/kWh. from what I've researched, used tesla packs are the best at about $1500/5kWh.
Forum: Conservation 05-01-19, 05:27 PM
Replies: 162
Views: 21,329
Posted By u3b3rg33k
From what I've seen the used tesla 24V modules...

From what I've seen the used tesla 24V modules can't be beat on $/kWh.
Forum: Geothermal & Heat Pumps 05-01-19, 05:25 PM
Replies: 2
Views: 439
Posted By u3b3rg33k
I'd be using HPDE instead of PEX for outdoor...

I'd be using HPDE instead of PEX for outdoor applications. seems to work for the geo guys.
Forum: Appliances & Gadgets 03-11-19, 12:52 AM
Replies: 17
Views: 2,134
Posted By u3b3rg33k
the only way a resistance heater can convert less...

the only way a resistance heater can convert less electricity to heat is by lowering the supply voltage. otherwise, the element just runs hotter until a new equilibrium is reached, with the surface...
Forum: Other Improvements 02-25-19, 01:33 AM
Replies: 15
Views: 1,154
Posted By u3b3rg33k
look into a whole house dehumidifier. don't even...

look into a whole house dehumidifier. don't even look at anything under 100PPD if you care at all about your energy bill. the rules are different for 100PPD+, mandating a significant difference in...
Forum: Conservation 01-17-19, 02:10 AM
Replies: 4
Views: 629
Posted By u3b3rg33k
I think there's a DoE study that shows the impact...

I think there's a DoE study that shows the impact of a HPWH is pretty minimal, even on homes heated by a heat pump, and that it was decisively preferable to any version of "exhausting the cold air...
Forum: Conservation 12-11-18, 01:37 AM
Replies: 26
Views: 37,808
Posted By u3b3rg33k
a quick and dirty reinforcement might be a couple...

a quick and dirty reinforcement might be a couple of T50 staples across the wood/tape mating surface.
Forum: Conservation 12-02-18, 11:24 PM
Replies: 77
Views: 5,918
Posted By u3b3rg33k
I can only hope it's not vaporware. some proper...

I can only hope it's not vaporware. some proper competition for Tesla would be great, and it doesn't look like it's going to come from the big 3.
Forum: Conservation 11-10-18, 02:40 AM
Replies: 13
Views: 1,427
Posted By u3b3rg33k
well, in FL it's not cheaper to put in solar,...

well, in FL it's not cheaper to put in solar, because FP&L hates all things solar.
Forum: Conservation 10-19-18, 05:50 PM
Replies: 33
Views: 3,825
Posted By u3b3rg33k
i'd love to see those just for fun. i haven't run...

i'd love to see those just for fun. i haven't run them myself because i wasn't planning to build anything any time soon.
Forum: Conservation 09-30-18, 12:32 AM
Replies: 2
Views: 747
Posted By u3b3rg33k
you may want to re-visit your needs. HEPA...

you may want to re-visit your needs.

HEPA filtration is one "need". typically used in hospitals when they do 100% outside air.
outside air requirement - how much fresh air does your building...
Forum: Solar Power 09-09-18, 09:08 PM
Replies: 2
Views: 416
Posted By u3b3rg33k
many states have tax exemptions for solar. you...

many states have tax exemptions for solar. you should look into it and see if your state does this.

keeping land zoned a tax friendly way depends on how you use it. turn woods into lawn, they'll...
Forum: Conservation 09-05-18, 10:35 PM
Replies: 34
Views: 4,329
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: Conservation 09-05-18, 10:54 AM
Replies: 34
Views: 4,329
Posted By u3b3rg33k
something is wrong. a heat pump should be more...

something is wrong. a heat pump should be more efficient than strip heat until 0F or lower. if it stops working at high temperature like 35F, well... wow?

for example:...
Forum: Appliances & Gadgets 08-31-18, 09:23 PM
Replies: 4
Views: 668
Posted By u3b3rg33k
heatpipes often have water vapor under partial...

heatpipes often have water vapor under partial vacuum in them as a cheap refrigerant. might account for the expansion.
Forum: Solar Power 08-28-18, 07:36 PM
Replies: 1
Views: 370
Posted By u3b3rg33k
i'd recommend a low pressure cut-out switch. ...

i'd recommend a low pressure cut-out switch. that will turn the system off if the pressure ever drops below say, 20PSI on a 40/60 system.
Forum: Other Improvements 08-27-18, 06:06 PM
Replies: 12
Views: 1,315
Posted By u3b3rg33k
The xantrex XW system - when I looked at it last,...

The xantrex XW system - when I looked at it last, would use the grid to charge batteries when the pricing was advantageous. I'm sure it could be configured either way.

at work, we have UPSes...
Forum: Other Improvements 08-27-18, 01:56 PM
Replies: 12
Views: 1,315
Posted By u3b3rg33k
Selling back should not be hard in Oregon. last I...

Selling back should not be hard in Oregon. last I checked, Portland was HUGE on that.

given your needs, you'll want a system that integrates the generator and solar. solar + generator means...
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