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Search: Posts Made By: Fionn
Forum: Geothermal & Heat Pumps 10-17-19, 03:43 AM
Replies: 12
Views: 2,210
Posted By Fionn
Any updates on the installation or performance?

Any updates on the installation or performance?
Forum: Solar Power 01-27-18, 10:25 AM
Replies: 23
Views: 4,786
Posted By Fionn
Crikey, you waited 9 years to make your first...

Crikey, you waited 9 years to make your first post :)
No reason NiMh shouldn't work fine once you use the correct charging algorithm, the only downside might be the self discharge but I don't think...
Forum: Solar Power 01-08-18, 12:32 AM
Replies: 23
Views: 4,786
Posted By Fionn
Sounds like you have the best design for your...

Sounds like you have the best design for your needs. Will you have some storage underneath also?
The only things putting me off the thin panels is the apparently short life and the fact that the...
Forum: Solar Power 01-07-18, 12:55 PM
Replies: 23
Views: 4,786
Posted By Fionn
I'd definitely look at making it fold up, if...

I'd definitely look at making it fold up, if nothing else it would make it a lot more compact for storage when not in use.
That's an excellent price for high efficiency thin panels.
Forum: Solar Power 01-07-18, 07:24 AM
Replies: 23
Views: 4,786
Posted By Fionn
Looks good and shouldn't be too draggy in use. ...

Looks good and shouldn't be too draggy in use.
It might be good to have the option to carry them flat in the event of strong cross winds on your journey?
Any further details on the panels in terms...
Forum: Solar Power 01-04-18, 05:33 AM
Replies: 23
Views: 4,786
Posted By Fionn
Your image isn't displaying for me unfortunately.

Your image isn't displaying for me unfortunately.
Forum: Solar Power 01-02-18, 02:51 PM
Replies: 23
Views: 4,786
Posted By Fionn
Sounds good, i'm sure the controller will work...

Sounds good, i'm sure the controller will work well for you an it will be interesting to see what the efficiency is like.
Those high quality flexible panels are lovely but they're a little too...
Forum: Solar Power 01-01-18, 03:45 AM
Replies: 23
Views: 4,786
Posted By Fionn
Given how cheap they are I'd probably just give...

Given how cheap they are I'd probably just give it a go, he will have different input and output voltages so his efficiency will differ from yours also.
The best option of all if you wanted to spend...
Forum: Solar Power 12-29-17, 07:46 AM
Replies: 23
Views: 4,786
Posted By Fionn
Is there something in particular you're wondering...

Is there something in particular you're wondering about? That guy is pretty responsive to any questions in his video comments.
Forum: Solar Power 12-28-17, 03:23 PM
Replies: 23
Views: 4,786
Posted By Fionn
This guy has been using 3 of them for a year or...

This guy has been using 3 of them for a year or more, this video and others in his series discuss them at some length. He's reasonably happy overall I think, the conclusion seems to be they work very...
Forum: Solar Power 06-12-17, 10:53 AM
Replies: 114
Views: 39,239
Posted By Fionn
Great project and writeup. Are you still happy...

Great project and writeup.
Are you still happy with the Chargery BMS?
I'm looking at the BMS16.
Forum: Renovations & New Construction 03-19-17, 04:09 AM
Replies: 23
Views: 5,128
Posted By Fionn
Hi Toby, no problem. 150mm of PUR is just about...

Hi Toby, no problem.
150mm of PUR is just about minimum here to meet code.
You'll find that you'll probably end up in the same place in terms of minimum R value as us eventually, just takes years...
Forum: Renovations & New Construction 03-18-17, 07:22 PM
Replies: 23
Views: 5,128
Posted By Fionn
A foot (300mm) of EPS is standard under slab here...

A foot (300mm) of EPS is standard under slab here or alternatively 150mm-200mm of polyurethane foam under screeds. This is in a temperate climate.
Just to put things into perspective.
Forum: Geothermal & Heat Pumps 01-04-17, 04:44 PM
Replies: 16
Views: 3,191
Posted By Fionn
Definitely C

Definitely C
Forum: Geothermal & Heat Pumps 12-21-16, 06:22 PM
Replies: 83
Views: 13,050
Posted By Fionn
No problem, I wasn't sure you had realised that. ...

No problem, I wasn't sure you had realised that.
I guess if you can use a good filter before the heat exchanger you might have a chance.
Really I think given your budget constraints that you are...
Forum: Geothermal & Heat Pumps 12-21-16, 05:09 PM
Replies: 83
Views: 13,050
Posted By Fionn
Just one point about you gaining confidence from...

Just one point about you gaining confidence from the fact that commercial GSHP units use flat plate heat exchangers.
What you're not appreciating fully is that they are all designed for closed loop...
Forum: Tools 12-20-16, 04:28 AM
Replies: 14
Views: 3,541
Posted By Fionn
What's used in this part of the world is a DC...

What's used in this part of the world is a DC generator feeding a battery bank. The bank feeds the loads via an inverter.
The generator runs intermittently at full load in order to recharge the...
Forum: Geothermal & Heat Pumps 11-01-16, 11:48 AM
Replies: 36
Views: 7,601
Posted By Fionn
Taking this to it's logical conclusion, is the...

Taking this to it's logical conclusion, is the most efficient setup going to be a huge evaporator that requires minimal airflow assistance in order to absorb heat from the ambient air?
Forum: Solar Power 10-30-16, 03:26 AM
Replies: 15
Views: 2,667
Posted By Fionn
Slightly off topic but why don't you use roofing...

Slightly off topic but why don't you use roofing materials that can survive the typical weather conditions in your area? Seems a bit ridiculous to me to be continually having homes reroofed via...
Forum: Renovations & New Construction 10-28-16, 04:13 PM
Replies: 16
Views: 3,178
Posted By Fionn
The tiny amount of insulation used in the US...

The tiny amount of insulation used in the US building industry is amazing from a European perspective.
In Europe nobody would consider putting less than 150mm of PUR insulation beneath a heated...
Forum: Renovations & New Construction 10-24-16, 04:24 PM
Replies: 7
Views: 1,607
Posted By Fionn
You are risking serious health issues due to...

You are risking serious health issues due to mould caused by interstitial condensation by putting so much insulation between you and the wall.
If you do a condensation risk analysis you will find...
Forum: Solar Power 03-17-16, 06:13 AM
Replies: 51
Views: 18,155
Posted By Fionn
It's a 32A breaker, the 3000A is the maximum...

It's a 32A breaker, the 3000A is the maximum fault current it can handle, obviously this is unlikely to occur in a realistic scenario.
Forum: Geothermal & Heat Pumps 09-01-15, 04:07 AM
Replies: 217
Views: 40,577
Posted By Fionn
Thanks Memphis for that detailed reply. Sounds...

Thanks Memphis for that detailed reply. Sounds like hard work but very worthwhile. Amazing results and speed for such a simple setup!
Forum: Geothermal & Heat Pumps 08-30-15, 02:00 PM
Replies: 217
Views: 40,577
Posted By Fionn
Memphis, can you share any further detail on the...

Memphis, can you share any further detail on the drilling setup?
Is the PVC pipe just turned by hand on the way down or is there more to it?
Do you use a swivel arrangement at the top?
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