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Thread: The Daily pond temp thread
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14-11-2019, 09:21 PM #7741
Hi RS
this is to box in my combi filter / electrics and pumps etc, at the moment its all exposed, all I have done is lagged the pipes outside and covered over the electrics with a plastic cover to protect from the rain but this all needs to be covered in, basically to have a large wooden frame made with composite panels on the front and both sides (rear wont need doing as this is off my house) with a hinged roof with a strip off rubber over hinges to stop water ingress using SSteel fittings / hydraulic arms to hold up the roof approx. 3.5m across x 1.5m deep and 1.3m high seems a crazy amount of money to have made bespoke, my 10x8ft shed did not cost as much lol...…I am with you ref DTF £1.20 a day heating costs appear a lot less than what I thought they would be, cheers Steve.
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14-11-2019, 09:23 PM #7742
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14-11-2019, 09:29 PM #7743
Hi DTF you have very spoilt fish i am going to see how this winter goes without heat, this is my first year as you know with build costs, fish costs etc unless I want a divorce cannot afford anymore now I might just about eeek out the costs to box in my pump etc but that's coming in at £1100 simply crazy.... cheers Steve
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14-11-2019, 10:06 PM #7744
Poor fish . This is the first year with this pond and should have had covers and lagging in place but with every thing else with the house they have been left to it I'll get things started this week to cover what I can and make the best of it for this winter with met year in mind. Had a inline heater but got scared working out the running cost but at 1.20 wish I had kept it but that set up is well insulated compared to mine think I would x50 on dtf s costs Haha
Sent from my SM-N950F using TapatalkFreddyboy the legend
"we are water keepers first"
Johnathan
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14-11-2019, 10:27 PM #7745
It's an electro 1 kw I got for a good price only £100 on eBay less than a year old.
20190912_163027.jpg
The pond is only just over 1000 gallons, as it was only meant to be a water feature.
after 20 years of vehemently resisting me having another koi pond my wife suddenly said "some fish would look nice in the 'water feature'..."
I wasn't waiting around for her to change her mind, I had to hastily convert it into a koi pond.
It will do until I can build it bigger and deeper next year.
But I'll be looking to properly insulate the new pond,
And reckon I'll still get away with a 1 kw heater.
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14-11-2019, 10:45 PM #7746
Pond is heated to 16 degrees
Steaming under the polycarb covers.
Just over 2000 gallon 2kw cloverleaf heater. No idea of the cost and I don't want to know either.
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14-11-2019, 10:56 PM #7747
Beautiful . lucky fish mate
Sent from my SM-N950F using TapatalkFreddyboy the legend
"we are water keepers first"
Johnathan
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14-11-2019, 11:04 PM #7748
that's what i feared for my pond without heat...
my last pond years ago was over 6 ft deep, unheated, and not covered.
but suffered some losses due to low winter temps and spring start up.
plus i used to hate seeing the fish huddled up on the bottom, un moving for months in the depths of a hard winter.
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14-11-2019, 11:24 PM #7749
Am panicking now like had them in a pop up vat in outhouse last winter toying with doing the same but more fish and bigger this year
Sent from my SM-N950F using TapatalkFreddyboy the legend
"we are water keepers first"
Johnathan
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freddyboy Thanked / Liked this Post
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14-11-2019, 11:24 PM #7750
i think most of us here would 'heath robinson' something together, rather than shell out nearly 2k for a filter cover...
can you just slap and tape some celotex around it?
it's a doddle to cut with a carving knife, just score and snap like plaster board.
heating is £1.20 a day atm with a 15-19C temperature differential.
it's going to get a lot colder yet i fear, so will probably drop it 15Cish in December and lower it more if temps really plummet.
i recently came out of a good fixed deal with scottish power, and had to shop around to get a good deal as they were asking for a big 40% increase in electricity costs.
but 2 days after switching on U switch, i got an email with a limited time 'bespoke' deal fixed well into 2022 at my old kWh rates with a small increase in the standing charge of 12p per day, so i stayed with them.
i saved more than enough to increase my monthlies by £40 so that should easily cover the winter heating at current consuption rates based on 12 months. and needing a lot less heat in the summer.
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14-11-2019, 11:34 PM #7751
covers make a big difference,
the ground holds heat at depth all year round, thats one reason why the fish huddle at the bottom, +8C at 2 mtrs...?
i did have a graph somewhere..... info is available online as it different in different areas...
but covers help hold that heat in...
the info was from a uk ground source heat pump companies web site
plus met office ground temps at 30cm
Last edited by davethefish1; 15-11-2019 at 12:11 AM.
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14-11-2019, 11:42 PM #7752
My leccy is around 14p including vat.
Worked out that a 3KW heater on 24 hours a day to heat 12,000 litres would cost £80 per week, £350 ish per month
Don't know how many hours a day it would actually be on if heating to say 12C, but even at 12 hours a day it would be £40 per week.
If only 6 hours a day was required then it would be in the affordable bracket!
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15-11-2019, 12:00 AM #7753
at 12,000 liters electric can get expensive...
a lot depends on insulation and how good it is, i've seen a big saving just by using 50mm celotex on my filters both in ground one and those in the filter room and using 25mm lagging on all pipes.
when i make the pond bigger next year i'll be looking at using 4" celotex on the walls and 2" on the floor, apart from gas exchange under the covers, i'll be looking to make a giant thermos lol!
that was one reason i only got a 1kw heater... even if it runs non stop 24/7 for 6 months of the year it will only cost 2.70 a day. or £492 for 6 months spread over 12 monthy payments at £41 a month.
i'll be looking long term to add a circuit to my central heating, gas at £0.03 per kw is a lot cheaper....Last edited by davethefish1; 15-11-2019 at 12:24 AM.
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15-11-2019, 12:50 AM #7754
Anyone know how many solar panels you would need to power a 3kw heater
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15-11-2019, 10:42 AM #7755
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17-11-2019, 01:16 PM #7756
South Norfolk
Boy it’s been wet!!! & windy, the ground is now saturated, but still not as bad as the flooding further north from me. I will be visiting family next week, near the areas affected.
The forecast is for some dry days, and getting slightly warmer, ie back into double figures?
Out in the open it’s 9.4°c 72% RH in the shade it’s 7.5°c
The Polytunnel is sitting closed up @ 11.1°c 86% RH & the water is 10.1°c still resisting the really cold nights? As I’m away ( & hopefully warming again) I will leave the koi on two feeds, until I return?
Stay Lucky guys
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17-11-2019, 02:14 PM #7757
Martin,
I have had solar panels for 8 years.
There are a whole load of variables to consider however the maximum you will get out of a standard sized solar panel is 200 watts on a really sunny day. I have 20 on my roof so the theoretical maximum is 4KW instantaneous power which is the government maximum for a grant. On most sunny days I am producing around 20 KW over the whole day which drops dramatically in the winter and none when it is dark when you probably need it most. Right now at lunchtime in November I am producing 400 watts of instantaneous power. The cost of my full installation will pay for itself (on the scheme that I am on) in 9-10 years (which is around industry estimates) so could be regarded as average. And just to add in - at 20 watts per panel right now it would take 150 panels to power your 3kw heater.
Solar power is great but for most people the power is being produced when they cannot use it i.e. they are at work or the beach in summer. Funnily enough I heard of someone who bought an electric car and were pleased when it came with a "free" solar panel, I had to point out that their car was at work with them when the panel could produce electricity.
KennyLast edited by Handy Kenny; 17-11-2019 at 02:50 PM.
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17-11-2019, 03:41 PM #7758
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17-11-2019, 04:35 PM #7759
Tell me about depth...I've got to redig my pond next year...
Agreed, the water stratification is very minimal almost non existant when it's being circulated.
Though there is still some stratification, and temperature inversion when the water is below 5C else the pond would turn into a slush puppy instead of freezing at the surface...
When it's cold I'd imagine the fish would go where they're most comfortable. And the warmth if not heated is radiating from the deepest part of the ground.
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RS2OOO Thanked / Liked this Post
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17-11-2019, 04:57 PM #7760
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