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Search: Posts Made By: Piwoslaw
Forum: Appliances & Gadgets 12-12-23, 07:37 AM
Replies: 5
Views: 27,820
Posted By Piwoslaw
If I were to invest more into this idea, I would...

If I were to invest more into this idea, I would experiment with a squirrel cage fan, but with a looong fan, like this:
https://ecorenovator.org/forum/attachment.php?attachmentid=9498&d=1702387800...
Forum: Energy Storage 12-12-23, 02:39 AM
Replies: 34
Views: 112,910
Posted By Piwoslaw
I added the heat trap and flap valve to the...

I added the heat trap and flap valve to the return from the house:
https://ecorenovator.org/forum/attachment.php?attachmentid=9497&d=1702369586

The additional resistance is evident from the...
Forum: Appliances & Gadgets 12-12-23, 02:15 AM
Replies: 5
Views: 27,820
Posted By Piwoslaw
I once started a discussion about increasing the...

I once started a discussion about increasing the efficiency of my heating system by lowering its temperature:
How to lower heating system temperature?...
Forum: Appliances & Gadgets 12-05-23, 07:28 AM
Replies: 159
Views: 258,790
Posted By Piwoslaw
I'm not that good with electrical motors, but I...

I'm not that good with electrical motors, but I think there might be at least 4 reasons:

Required precision of making/keeping the wheel's rim true, as mentioned above,
Keeping the magnets and...
Forum: Energy Storage 11-27-23, 12:25 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
Well, technically, I'd be losing more heat then,...

Well, technically, I'd be losing more heat then, at least until it cooled enough to stop the flow ;)

In fact, it is insulated pretty well, so a fan wouldn't do much.

I read here...
Forum: Energy Storage 11-08-23, 01:50 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
Wondering about the following: In all diagrams of...

Wondering about the following: In all diagrams of heat traps, the water at the top of the trap is as hot as in the top of the tank, and its temperature goes down as you get lower, so that in the part...
Forum: Energy Storage 11-04-23, 02:13 PM
Replies: 4
Views: 18,823
Posted By Piwoslaw
Read a bit more on these. Turns out they can...

Read a bit more on these. Turns out they can switch between storing and producing energy very quickly, reaction time below 1 second. Many other types of batteries need to "rest" in between cycles to...
Forum: Energy Storage 10-22-23, 12:16 AM
Replies: 34
Views: 112,910
Posted By Piwoslaw
This summer I reworked the heat trap plumbing on...

This summer I reworked the heat trap plumbing on the hot side, extending it first barely above the top of the tank (can't go higher due to low ceiling) then down almost to the cold input:...
Forum: Conservation 10-03-23, 12:15 PM
Replies: 3
Views: 30,730
Posted By Piwoslaw
Good question! The water in pipes will have a...

Good question!
The water in pipes will have a temperature of 40-70 deg C, while the basement is usually 15 deg c. I don't mind if the basement warms up by 1 or 2 deg, but don't want the water to...
Forum: Conservation 09-30-23, 01:45 PM
Replies: 3
Views: 30,730
Posted By Piwoslaw
How to insulate valves, filters, etc.

I am trying to better insulate my heat buffer, and the heating system's plumbing in general. Adding another layer of foam insulation and stuff like that.

But there are parts which are more...
Forum: Other Improvements 08-05-23, 02:07 PM
Replies: 1
Views: 29,675
Posted By Piwoslaw
Looks cool :cool: But I wonder how long...

Looks cool :cool:

But I wonder how long those hoses and connections will last if they are constantly bending in the salt and UV?
Something purely mechanical might last longer.

Wave power has...
Forum: Energy Storage 08-05-23, 01:59 PM
Replies: 4
Views: 14,157
Posted By Piwoslaw
Energy storage for PV/wind? I doubt they...

Energy storage for PV/wind?

I doubt they would be good for extending the range of an EV...
Forum: Appliances & Gadgets 07-17-23, 01:01 PM
Replies: 2
Views: 13,353
Posted By Piwoslaw
Screw-in heat exchanger

I once came across a picture of a HX like this
https://ecorenovator.org/forum/attachment.php?attachmentid=9490&d=1689616596

This would be good to screw into one of the 2" ports of my heat buffer...
Forum: Conservation 05-28-23, 01:45 PM
Replies: 6
Views: 37,648
Posted By Piwoslaw
Instead of completely disconnecting, could you...

Instead of completely disconnecting, could you add an additional thermostat in series, so it still turns on, but at a lower temp.
Or instead of a manual 2-postion switch, use a 3-position switch for...
Forum: Energy Storage 05-19-23, 11:53 PM
Replies: 19
Views: 28,148
Posted By Piwoslaw
I got this idea about small scale pumped hydro...

I got this idea about small scale pumped hydro yesterday.
Instead of pumping water above the surface to store energy, why not pump it to the surface?
I'm thinking about a well, and wells can be...
Forum: Energy Storage 10-05-22, 12:14 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
Update: Last weekend I mounted the valve...

Update:
Last weekend I mounted the valve vertically (position #2 a few posts up), so that the weight of the flap holds back the flow when the pump is off. In fact, I even added a few washers to the...
Forum: Energy Storage 09-25-22, 01:05 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
I made the heat trap which dips almost all the...

I made the heat trap which dips almost all the way to the bottom of the tank:
https://ecorenovator.org/forum/attachment.php?attachmentid=9471&d=1664128136
Unfortunately, heat is still being sucked...
Forum: Appliances & Gadgets 07-31-22, 05:42 AM
Replies: 2
Views: 31,194
Posted By Piwoslaw
Old 6V battery - still good?

Helping family clean their house I found a 6V 4Ah sealed lead acid battery. Family said they don't need it, so I took it for some projects.

The label states the voltage should be 7.2-7.5V, but at...
Forum: Renovations & New Construction 07-07-22, 01:15 PM
Replies: 10
Views: 40,780
Posted By Piwoslaw
Wow:eek: I never thought about hot the...

Wow:eek:
I never thought about hot the underground water line can get.

Not sure how long a run you have on your property, but maybe laying the main deeper under ground? It would be a bit cooler...
Forum: Other Improvements 05-09-22, 01:51 PM
Replies: 1
Views: 9,175
Posted By Piwoslaw
Screen door - need advice

A long time ago I made screens to put on the windows during mosquito season, now I would like to make a screen for the balcony door also.

The frames of the window screens are just simple...
Forum: Energy Storage 04-27-22, 02:46 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
Update. I read about heat traps and concocted...

Update.
I read about heat traps and concocted something like this:
https://ecorenovator.org/forum/attachment.php?attachmentid=9453&stc=1&d=1651087611
The heat trap goes up ~35cm, then down ~20cm,...
Forum: Energy Storage 03-14-22, 03:21 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
I had a spring-loaded check valve in my spare...

I had a spring-loaded check valve in my spare parts, so I installed it today.
And you were right: The spring is too much for the circulation pump. Even on the highest of the 3 speeds it made strange...
Forum: Energy Storage 03-13-22, 03:54 PM
Replies: 6
Views: 11,859
Posted By Piwoslaw
DIY Powerwall

The wife recently came across some blog with people who use huge banks of old 18650 batteries (hundreds or thousands) from old equipment and appliances for energy storage, like a DIY Tesla Powerwall,...
Forum: Lawn and Garden 03-10-22, 11:34 PM
Replies: 7
Views: 13,586
Posted By Piwoslaw
I have seen a few threads here on electric...

I have seen a few threads here on electric tractors, or converting to EV.
A quick search brought these 2 up, but there is more:
Electric Garden Tractor...
Forum: Energy Storage 03-10-22, 03:03 PM
Replies: 34
Views: 112,910
Posted By Piwoslaw
So, I bought a used heat buffer. It is 160cm...

So, I bought a used heat buffer.
It is 160cm tall and 60cm diameter, giving roughly 500 liters, of which 120 liters is an internal metal tank for domestic hot water. I searched for a plumber who...
Showing results 1 to 25 of 500

 
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