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Search: Posts Made By: ferox
Forum: Geothermal & Heat Pumps 11-08-20, 05:22 AM
Replies: 18
Views: 1,355
Posted By ferox
I need to change my system based on two factors. ...

I need to change my system based on two factors.
1. Old unit is not running well under 5degC.
2. Old setup is heating just the water tank, once at the highest temp of the day. House heating is a...
Forum: Geothermal & Heat Pumps 10-30-20, 08:07 AM
Replies: 18
Views: 1,355
Posted By ferox
Based on options that I have, I choose option 1...

Based on options that I have, I choose option 1 is more likely for me
Option 1 : buy new heat pump Mitsubishi 7,5kw, 5kW not available.
- eazy installation
- if I want to sell the house is...
Forum: Geothermal & Heat Pumps 10-25-20, 01:51 PM
Replies: 18
Views: 1,355
Posted By ferox
I understand. You are using the original...

I understand. You are using the original controller.
Is the easiest way of doing, just instead of internal air heat exchanger is an water HX.
In the same way I can put the temperature sensor of...
Forum: Geothermal & Heat Pumps 10-25-20, 10:42 AM
Replies: 18
Views: 1,355
Posted By ferox
Some pictures from the old inefficient setup. ...

Some pictures from the old inefficient setup.
External unit was modified to be able to have cooling for defrost proposes connected directly to the coil which is in the bottom of the tank. Was...
Forum: Geothermal & Heat Pumps 10-25-20, 10:24 AM
Replies: 18
Views: 1,355
Posted By ferox
Hi Sadashi! Yo have a nice setup, you did it!...

Hi Sadashi!
Yo have a nice setup, you did it! Exactly as I want to do it.
My goal is to control the power of the outside unit, than I can keep a fixed flow temperature.
Can you share with us how...
Forum: Geothermal & Heat Pumps 10-21-20, 01:51 PM
Replies: 18
Views: 1,355
Posted By ferox
Wink Inverter Ac converting into air-water heat pump

My current setup is an 24000btu R22 external unit.
This is heating my 1000L plastic tank once a day, which is insulated with 10cm of extruded polystyrene. Inside the tank I have 10mm copper tube/...
Forum: Conservation 03-09-16, 09:00 AM
Replies: 569
Views: 636,161
Posted By ferox
Thanks for info. Yes Blynk is very cool,...

Thanks for info.

Yes Blynk is very cool, simple and free, if you wand you can do sophisticated apps with the phone. Try it and you will love it!
I have 2 working controllers with blynk and others...
Forum: Conservation 03-09-16, 07:49 AM
Replies: 569
Views: 636,161
Posted By ferox
the heat exchanger from Recair cost me ~260 euro...

the heat exchanger from Recair cost me ~260 euro / pcs ~ 300 $ with shipping included for 2 pcs.

I don't know the name in english, something calling in romanian "prenadez"
after glueing I leave...
Forum: Conservation 03-09-16, 07:40 AM
Replies: 569
Views: 636,161
Posted By ferox
6746 6747 case for the EC fan 24V 55W each...

6746 6747

case for the EC fan 24V 55W each at max. speed, diam 175mm bought from china ~40$

6748 6749

the box have the bypass channel included on the right side, the dumper is not fitted...
Forum: Conservation 03-09-16, 07:17 AM
Replies: 569
Views: 636,161
Posted By ferox
Here some new updates from my HRV very close to...

Here some new updates from my HRV very close to finish.

cutting the board with hand made tool, very cheap

6736 6737
6738 6739

assemble the parts

6740 6741
Forum: Conservation 02-22-16, 07:56 AM
Replies: 569
Views: 636,161
Posted By ferox
@kostas you are good and all from this forum, in...

@kostas you are good and all from this forum, in the last month I worked on a unit with recair heat exchanger RS160/500mm and I don't know where to put the sensors, if I put the sensor DHT22 in the...
Forum: Solar Heating 04-08-15, 04:50 AM
Replies: 13
Views: 10,330
Posted By ferox
My plastic tank have 1000L, was tested in the...

My plastic tank have 1000L, was tested in the first start to 85C.
All 4 beer keg with 9 bar.
All works good, from 2013.

Pictures here...
Forum: Geothermal & Heat Pumps 10-12-13, 10:32 AM
Replies: 10
Views: 5,425
Posted By ferox
insulated with extruded polistyren in most of the...

insulated with extruded polistyren in most of the parts, 10cm.
temperature loss is ~2 Celsius in 6 hours.
logged data from xivley for beter improving https://xively.com/feeds/541753585
the pump...
Forum: Geothermal & Heat Pumps 10-12-13, 10:03 AM
Replies: 10
Views: 5,425
Posted By ferox
I got the air conditioner with this valve and...

I got the air conditioner with this valve and made minimal change posible.
The ground surce part is not done yet and maybe I'll use in this winter.
I invest just in the coper coil, external unit I...
Forum: Geothermal & Heat Pumps 10-12-13, 07:54 AM
Replies: 10
Views: 5,425
Posted By ferox
The schetch 3481 Outside unit panasonic...

The schetch
3481

Outside unit panasonic R22 24000 btu
3480

tank
3482 3483 3485 3484

Inside and outside the tank
Forum: Geothermal & Heat Pumps 10-12-13, 07:35 AM
Replies: 10
Views: 5,425
Posted By ferox
I made a litle schetch to understand beter what I...

I made a litle schetch to understand beter what I thought.
Forum: Geothermal & Heat Pumps 10-12-13, 07:34 AM
Replies: 10
Views: 5,425
Posted By ferox
The heat pump is modified a litle, I made to run...

The heat pump is modified a litle, I made to run in the summer whet the oustide temperature is more then 5 C and with water in the winter when is 5 C bellow (the winter side is not ready yet).
I do...
Forum: Geothermal & Heat Pumps 10-12-13, 07:23 AM
Replies: 1,942
Views: 1,618,684
Posted By ferox
Hi You are the best I found this thread long...

Hi You are the best
I found this thread long time ago and learned a lot from you and from all hwo posted hear in this forum.
Now I decided to made an air to water heat pump for backup my hot water...
Forum: Geothermal & Heat Pumps 10-12-13, 07:17 AM
Replies: 108
Views: 70,882
Posted By ferox
Thank you to sharing to as. With your idea I...

Thank you to sharing to as.
With your idea I decide to make a plastic solar hot water tank with heat pump backup, now workink with R22 maybe in the future with R290.

Best regards,
Ferox
Forum: Introductions 10-12-13, 07:05 AM
Replies: 1
Views: 1,086
Posted By ferox
Hi from Europe Romania

Hi to all

You are very fantastic, I decide to made my own heat pump for my solar water tank since I found this forum. I learned a lot from hear, and now I want to put my results with a new...
Forum: Geothermal & Heat Pumps 10-12-13, 06:40 AM
Replies: 10
Views: 5,425
Posted By ferox
Thumbs up plastic hot water tank with heat pump backup

Hi to all

My solar hot warer tank is maded from a 1000L PP plastic tank used for chemichal produts, inside I have 4 pieces of beer keg 50L each, 10cm insulation, the top of the tank is used for...
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