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Search: Posts Made By: Piwoslaw
Forum: Conservation 03-20-19, 03:24 PM
Replies: 561
Views: 540,132
Posted By Piwoslaw
The filters and/or ventilation motors may get...

The filters and/or ventilation motors may get wet.
Excessive moisture may lead to mold.
Enough water can start to clog some of the passages, both reducing efficiency and increasing risk of mold....
Forum: Solar Power 02-22-19, 03:08 PM
Replies: 5
Views: 860
Posted By Piwoslaw
You should be careful with mirrors - they can...

You should be careful with mirrors - they can easily "fry" your panels.
PV efficiency lowers with temperature, while solar hot water may boil in the panels if the mirrors add energy faster than the...
Forum: Appliances & Gadgets 01-11-19, 03:26 PM
Replies: 29
Views: 6,143
Posted By Piwoslaw
Nice reduction! Would you have any pictures?

Nice reduction!

Would you have any pictures?
Forum: The Billiards Room 01-07-19, 03:02 PM
Replies: 8
Views: 1,338
Posted By Piwoslaw
Training and Quality Manager

Training and Quality Manager
Forum: Conservation 12-30-18, 07:58 AM
Replies: 6
Views: 865
Posted By Piwoslaw
What to do with a lead-acid car battery?

I recently bought a new car, but it came with a cheap, undersized battery. For the engine Start-Stop function to work, I had to get a larger AGM battery. Now I have the old one as a spare.

What...
Forum: Appliances & Gadgets 08-08-18, 03:24 PM
Replies: 8
Views: 936
Posted By Piwoslaw
How about if you get a small heat pump for the...

How about if you get a small heat pump for the central air, to only slightly dehumidify and/or cool the whole house, then use the window unit when needed (=less often)? Make it low power with a large...
Forum: Appliances & Gadgets 06-10-18, 02:41 PM
Replies: 29
Views: 6,143
Posted By Piwoslaw
I once thought about using a small fan to blow...

I once thought about using a small fan to blow air over the coils and/or compressor, but I guess the improved efficiency would hardly outweigh the fan's power consumption.
Forum: Conservation 05-20-18, 03:55 PM
Replies: 1
Views: 585
Posted By Piwoslaw
(Redox) Flow Battery

I just found out about a method for storing energy - the (Redox) Flow Battery or RFB.

In short - It is a battery which stores the energy in separate electrolyte tanks, instead of all together in...
Forum: Other Improvements 04-27-18, 03:41 PM
Replies: 2
Views: 814
Posted By Piwoslaw
Insulate the car's/RV's floor, ceiling and sides....

Insulate the car's/RV's floor, ceiling and sides. Less heat loss will stretch your heat storage. I'm assuming that you already have warm clothes and warm sleeping bag in use?
Forum: Lawn and Garden 02-25-18, 01:00 PM
Replies: 1
Views: 850
Posted By Piwoslaw
Rainwater storage in multiple underground tanks

I am closer to finally moving storage of rainwater from barrels to underground. This will allow me to store more of it (I have 6x 220-liter barrels now), year round, and hook it up to the house's...
Forum: Geothermal & Heat Pumps 01-30-18, 04:00 PM
Replies: 14
Views: 3,076
Posted By Piwoslaw
Amazing. I mean - the math:thumbup: I like the...

Amazing. I mean - the math:thumbup: I like the depth that you are going into (I can see myself doing it exactly the same way).

The COP=2 looks OK, in the sense that 3.6 from the specs is probably...
Forum: Geothermal & Heat Pumps 01-29-18, 03:15 PM
Replies: 14
Views: 3,076
Posted By Piwoslaw
Hi ThMihov, welcome to ER:) I envy how far...

Hi ThMihov, welcome to ER:)

I envy how far you've gotten with this project:cool: I can't wait to see the results!

I see that what you have made is a small heat buffer. I'm not sure of the...
Forum: Geothermal & Heat Pumps 01-06-18, 01:42 AM
Replies: 5
Views: 970
Posted By Piwoslaw
Great idea! I have thought about ways of...

Great idea! I have thought about ways of utilizing heat from cooling PVs, and of using solar to preheat intake air for a heat pump, but this merges both:)

Everything looks great, only one thing...
Forum: Appliances & Gadgets 11-21-17, 03:07 PM
Replies: 14
Views: 2,467
Posted By Piwoslaw
After ~2days I've noticed that in the evening,...

After ~2days I've noticed that in the evening, about 1-1.5 hours before powering on again, the temperature in the top of the chest is around -7C. This is a bit warm, so I've extended the on-time from...
Forum: Appliances & Gadgets 11-19-17, 03:31 PM
Replies: 14
Views: 2,467
Posted By Piwoslaw
This project has been creeping along very slowly....

This project has been creeping along very slowly. Mostly because we don't have enough food to fill the 160 liter freezer, but we finally turned it on and moved what we had, so that the freezer part...
Forum: Appliances & Gadgets 09-13-17, 03:31 PM
Replies: 14
Views: 2,467
Posted By Piwoslaw
Sea water freezes at around -2C or -4C, iirc,...

Sea water freezes at around -2C or -4C, iirc, and I don't think it would go much lower, with more salt in it.

Glycol solution may be an option, but I would first need to find what the...
Forum: Appliances & Gadgets 09-13-17, 02:53 AM
Replies: 14
Views: 2,467
Posted By Piwoslaw
Thank you all for your feedback:) I am aware...

Thank you all for your feedback:)

I am aware that the freezer design is already pretty efficient, so I am not expecting 30 or 50% improvement. But even if I get 5-10%, it will still count. My goal...
Forum: Conservation 08-27-17, 03:46 PM
Replies: 2
Views: 781
Posted By Piwoslaw
If you must move the air through a smaller...

If you must move the air through a smaller diameter tube, because of dimensional constraints, then try to keep the tube as short as possible, or at least keep the bottleneck short. For example, if...
Forum: Appliances & Gadgets 08-27-17, 02:37 AM
Replies: 14
Views: 2,467
Posted By Piwoslaw
Chest freezer insulation

I recently bought a used chest freezer. It is larger than we expected (we wanted 110 liters, turned out to be 168 l), so I'll add extra insulation to reduce the extra load. According to the label,...
Forum: Geothermal & Heat Pumps 02-07-17, 11:45 PM
Replies: 8
Views: 1,195
Posted By Piwoslaw
Have you seen this old thread? Dual compressor...

Have you seen this old thread?
Dual compressor heat pump (http://ecorenovator.org/forum/geothermal-heat-pumps/976-dual-compressor-heat-pump.html)
Forum: Geothermal & Heat Pumps 02-01-17, 03:39 PM
Replies: 13
Views: 2,229
Posted By Piwoslaw
I like what you are doing, Acuario:) I would like...

I like what you are doing, Acuario:) I would like to do something similar, if I get ever get back to working on my Arduino-controlled thermostat.

Are you planning on keeping the water temperature...
Forum: Conservation 12-18-16, 03:21 PM
Replies: 561
Views: 540,132
Posted By Piwoslaw
A clear HX core? If you also made the outer...

A clear HX core? If you also made the outer casing clear you could observe what is happening inside - condensation, mildew, clogging, etc.
Forum: Appliances & Gadgets 10-11-16, 03:14 PM
Replies: 2
Views: 1,473
Posted By Piwoslaw
Our neighbors were having their gate opener motor...

Our neighbors were having their gate opener motor serviced last week and my Dad-in-law found out from the servicemen that the motors have a heating element on the circuit board to keep the moisture...
Forum: Appliances & Gadgets 10-08-16, 03:55 PM
Replies: 5
Views: 1,417
Posted By Piwoslaw
Have you thought about putting the refrigerator...

Have you thought about putting the refrigerator on a timer (http://ecorenovator.org/forum/appliances-gadgets/1448-test-results-power-savings-timer-fridge.html), so that it won't turn on during the...
Forum: Appliances & Gadgets 10-08-16, 03:47 PM
Replies: 29
Views: 6,143
Posted By Piwoslaw
I did more or less the same...

I did more or less the same (http://ecorenovator.org/forum/conservation/1272-how-about-chimney-back-fridge-2.html#post15027) (foiled insulation between the back wall of the fridge and the hx coils,...
Showing results 1 to 25 of 500

 
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