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Search: Posts Made By: Acuario
Forum: Solar Heating 01-13-21, 07:27 AM
Replies: 12
Views: 226
Posted By Acuario
If your connections are as you say then they are...

If your connections are as you say then they are the wrong way around.
Heat always travels from hot to cold, never the reverse.

You need to feed the hottest water to the hottest point of the tank...
Forum: Solar Heating 01-13-21, 12:25 AM
Replies: 12
Views: 226
Posted By Acuario
Have you measured the entry/exit temperatures of...

Have you measured the entry/exit temperatures of the water passing through the tank? And the temperature at the lowest point of the heat exchanger?

What is the delta across the heat exchanger? The...
Forum: Solar Heating 01-11-21, 11:28 PM
Replies: 12
Views: 226
Posted By Acuario
If your pump isn't shutting down then it sounds...

If your pump isn't shutting down then it sounds to me like there is a fault with the controller. From above, with an 8 degrees difference the pump should stop, you say it continues to run (but...
Forum: Geothermal & Heat Pumps 01-11-21, 02:17 AM
Replies: 1
Views: 1,443
Posted By Acuario
It's been a while since I updated this post but...

It's been a while since I updated this post but development certainly hasn't stopped...

I've made significant changes to the heatpump controller by adding in predictive weather heating/cooling...
Forum: Geothermal & Heat Pumps 12-19-20, 12:30 PM
Replies: 3
Views: 390
Posted By Acuario
Wow, a BIG solar system, my solar isn't quite as...

Wow, a BIG solar system, my solar isn't quite as big, I have 2K of panels, 10K lithium batteries (Pylontech) and a 4.4K Studer inverter that's now about 14 years old so not much chance of getting...
Forum: Geothermal & Heat Pumps 12-10-20, 09:31 AM
Replies: 3
Views: 390
Posted By Acuario
Running a heatpump on solar power

Has anyone run a heatpump on solar power?

To date I've run mine on the grid but I also have a solar electric installation (and solar hot water/heating but that's another subject).

I was using...
Forum: Geothermal & Heat Pumps 12-10-20, 08:55 AM
Replies: 6
Views: 616
Posted By Acuario
When I added the predictive weather code and had...

When I added the predictive weather code and had it running it wasn't windy.
Where I live it can be very windy and the last few days it has been both windy and cold.
I was surprised what a...
Forum: Geothermal & Heat Pumps 12-05-20, 01:10 AM
Replies: 6
Views: 616
Posted By Acuario
I've updated my heatpump controller code a little...

I've updated my heatpump controller code a little to include nighttime reduction (which is configurable) so the heating temperature reduces overnight.

I've now had the predictive weather code...
Forum: Solar Heating 11-12-20, 12:04 AM
Replies: 14
Views: 2,279
Posted By Acuario
A very sharp knife and a lot of care! When I have...

A very sharp knife and a lot of care! When I have to remove PEX fittings I cut a deep slit into the pipe the length of the fitting following the line of the pipe, but not down to the fitting. At the...
Forum: Solar Heating 11-03-20, 02:08 AM
Replies: 4
Views: 467
Posted By Acuario
I'm currently getting around 7C increase per...

I'm currently getting around 7C increase per panel. I can't increase the flow through the panels and the HX is quite small bore so there is a limit to what I can pass through it.

My thoughts are:...
Forum: Geothermal & Heat Pumps 11-01-20, 03:32 PM
Replies: 6
Views: 616
Posted By Acuario
It's all diy - the controller and installation...

It's all diy - the controller and installation anyway. The heatpump itself is a basic compressor/fan/reversing valve unit that I have added my own controller and control software to.

I describe it...
Forum: Solar Heating 11-01-20, 07:20 AM
Replies: 4
Views: 467
Posted By Acuario
Question Configuring hot water solar panels

I currently have 3 solar water panels connected in series to provide heating to my underfloor heating in the house.

As I write (a nice sunny Sunday at 13h) the water temperature in the floor is...
Forum: Geothermal & Heat Pumps 11-01-20, 03:46 AM
Replies: 6
Views: 616
Posted By Acuario
Setting temperature via weather feed

I may have posted about this before but anyway this is an update and it's now working...

It is now cool at night so time to run the heatpump which is connected to the under floor heating in my...
Forum: Geothermal & Heat Pumps 11-01-20, 03:24 AM
Replies: 17
Views: 1,240
Posted By Acuario
If you investigate the motor a bit more you'll...

If you investigate the motor a bit more you'll probably find one of the wires is providing a square wave pulse output that varies depending on the speed of the motor.

It should be fairly simple to...
Forum: Geothermal & Heat Pumps 06-29-20, 07:14 AM
Replies: 15
Views: 1,989
Posted By Acuario
Improving cooling efficiency?

I was thinking the other day, in the summer I'm obviously running my heatpump in cooling mode. The compressor is still just doing it's job and compressing gas so generating a lot of heat that then...
Forum: Lawn and Garden 05-27-20, 07:09 AM
Replies: 28
Views: 15,773
Posted By Acuario
For water or for electric?

For water or for electric?
Forum: Lawn and Garden 03-24-20, 01:22 AM
Replies: 12
Views: 3,070
Posted By Acuario
Here are a few photos of the plants that are...

Here are a few photos of the plants that are growing on 23rd March. The runner beans are just starting to flower and everything else is growing like crazy. I've started planting some out in the...
Forum: Lawn and Garden 03-14-20, 02:07 PM
Replies: 12
Views: 3,070
Posted By Acuario
As we are on lockdown by the government for the...

As we are on lockdown by the government for the Coronavirus I'm taking advantage to work on the greenhouse.

Here is the ventilation fan (ex evaporator fan from a mini-split) installed and with the...
Forum: Lawn and Garden 03-12-20, 12:27 AM
Replies: 12
Views: 3,070
Posted By Acuario
Here is the (almost) finished greenhouse. I...

Here is the (almost) finished greenhouse.
I still need to add some of the automation but it is now operational.

https://ecorenovator.org/forum/attachment.php?attachmentid=8867&stc=1&d=1583987058...
Forum: Lawn and Garden 03-01-20, 12:26 AM
Replies: 12
Views: 3,070
Posted By Acuario
Here is a photo of the plants on 29th February in...

Here is a photo of the plants on 29th February in the existing polytunnel

https://ecorenovator.org/forum/attachment.php?attachmentid=8852&stc=1&d=1583040156

..and the new greenhouse taking...
Forum: Lawn and Garden 02-29-20, 01:52 AM
Replies: 12
Views: 3,070
Posted By Acuario
Here's an update on the greenhouse and future...

Here's an update on the greenhouse and future plans..

So far no very strong winds so the poly tunnel is still standing although it is starting to deteriorate. Everything inside is growing like...
Forum: Geothermal & Heat Pumps 02-15-20, 01:28 AM
Replies: 4
Views: 2,360
Posted By Acuario
Ok, thanks, that makes sense. The machine was one...

Ok, thanks, that makes sense. The machine was one with conducts and the control panel does have an 'Energy save' button so I guess that's what it was for.

It doesn't sound like I need to implement...
Forum: Geothermal & Heat Pumps 02-11-20, 11:46 PM
Replies: 4
Views: 2,360
Posted By Acuario
Question Two speed fan

I have a question..
The majority of machines I have hacked to convert to heat pumps have had single speed condenser fans. I have just 'inherited' two Fuji 7kW machines that have 2 speed fans.

My...
Forum: Appliances & Gadgets 02-11-20, 11:36 PM
Replies: 6
Views: 3,703
Posted By Acuario
I had to fix a tv for one of my neighbors....

I had to fix a tv for one of my neighbors. Exactly the same model. It seems this model is particularly prone to led failure of this type.
I also recently fixed a Philips tv, about 5 years old, an...
Forum: Lawn and Garden 02-06-20, 12:57 AM
Replies: 12
Views: 3,070
Posted By Acuario
Here is a screenshot of the performance during 24...

Here is a screenshot of the performance during 24 hours, it lets me monitor both the solar batteries and temperature variations in the greenhouse.

It's amazing that in February, typically the...
Showing results 1 to 25 of 212

 
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