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Search: Posts Made By: Zwerius
Forum: Geothermal & Heat Pumps 01-03-21, 08:35 AM
Replies: 0
Views: 3,891
Posted By Zwerius
How our energy system performed over 2020

I thought you might like this:


https://i.postimg.cc/PxWWmj8s/sankeymatic-2300x1200-2020-English.png



For all details, you can take a look at my website.
It's in Dutch, but Google...
Forum: The Billiards Room 08-12-18, 11:52 AM
Replies: 2
Views: 9,773
Posted By Zwerius
May be it's good to read this article in the NYT:...

May be it's good to read this article in the NYT: https://www.nytimes.com/interactive/2018/08/01/magazine/climate-change-losing-earth.html
Forum: Geothermal & Heat Pumps 06-29-17, 05:43 AM
Replies: 21
Views: 12,463
Posted By Zwerius
As far as I know, many refrigerant compressors...

As far as I know, many refrigerant compressors are not able to start up against a backpressure. Normally after stopping the compressor, after a while the pressures in condensor and evaporator will be...
Forum: Renovations & New Construction 10-29-16, 10:45 AM
Replies: 16
Views: 13,165
Posted By Zwerius
If you have to heat your house like we do (in the...

If you have to heat your house like we do (in the Netherlands 55°North), I would suggest to make the distance between the tubes much smaller. This causes a lower required water temperature in the...
Forum: Appliances & Gadgets 08-22-16, 08:47 AM
Replies: 29
Views: 23,871
Posted By Zwerius
If you realy want a low consumption of...

If you realy want a low consumption of electricity, do as I did: I converted a freezer to a refrigerator. Only by installing another thermostat.
The freezer has much more insulation than a regular...
Forum: Conservation 06-22-16, 07:14 AM
Replies: 30
Views: 24,280
Posted By Zwerius
charger in cabinet that can be opened with RFID-tag

I've built my charger (for BMW i3) in a cabinet in our front garden.
I can hang the plug in the cabinet when not charging.
The cabinet can be opened with an RFID-tag.
Very convenient....
Forum: Other Improvements 05-30-16, 02:24 PM
Replies: 3
Views: 4,990
Posted By Zwerius
Hydronic floor heating only 15 mm height

Hi there,

Wanted to show you, how I added floor heating to our bedrooms (first floor).
First installed preformed insulation plates, with grooves for fitting aluminum heat dividers, ...
Forum: Geothermal & Heat Pumps 12-27-15, 05:20 AM
Replies: 1,943
Views: 3,660,691
Posted By Zwerius
accuracy of measuring instruments

Hello AC (and others),

I'm only up to page 55, so it might come up later on, but I thought just to give you a hint.
You're talking about very different (calculated) COP's in further identical...
Forum: Conservation 01-12-15, 04:04 PM
Replies: 88
Views: 45,397
Posted By Zwerius
@gasstinguy: This is exactly what we do! Over...

@gasstinguy: This is exactly what we do!
Over 2014, our energybill was zero! So nett use of electricity was zero.
This was including heating our house (with a heatpump) and using our EV (BMW i3)....
Forum: The Billiards Room 12-26-14, 03:29 AM
Replies: 2
Views: 3,726
Posted By Zwerius
I have a dream

As a Christmas wish, I published this on my Dutch website geen energierekening meer: energieneutraal woonhuis fam. Kriegsman Ootmarsum - Rekening energiebedrijf 2013...
Forum: Renovations & New Construction 11-30-14, 06:45 AM
Replies: 50
Views: 50,485
Posted By Zwerius
Just read this discussion. What I didn't read...

Just read this discussion.
What I didn't read in this discussion, are these two things:
1. The heat transfer from water to the pipe is depending on water velocity.
As soon as waterflow is so low,...
Forum: Conservation 09-20-14, 01:20 AM
Replies: 18
Views: 21,865
Posted By Zwerius
Generally, in the VIP world, a lifetime of 30-50...

Generally, in the VIP world, a lifetime of 30-50 years is considered as normal.
Forum: Conservation 09-18-14, 01:52 AM
Replies: 18
Views: 21,865
Posted By Zwerius
Hello Everyone, From the previous post from...

Hello Everyone,

From the previous post from AC Hacker, you might get the idea to fabricate your own VIP's.

However, there are a few things you should know.

First of all, you need a quite...
Forum: Conservation 09-14-14, 09:43 AM
Replies: 5
Views: 4,412
Posted By Zwerius
How I upgraded our entrance door with vacuum insulation

For those of you interested in upgrading a door, here's an article I wrote a few years ago. It's about adding 2cm vacuum insulation to an entrance door. The 2 cm vacuum insulation is identical to...
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