Welcome to Koi Forum. Is this your first visit? Register
Page 6 of 8 FirstFirst ... 45678 LastLast
Results 101 to 120 of 145
  1. #101
    Senior Member Rank = Supreme Champion Ajm's Avatar
    Join Date
    Mar 2018
    Location
    Durham
    Posts
    11,220
    Thanks / Likes
    21135
    Guess it's all about how it's insulated and covered but that dose sound for to cheap . Know samp was running a inline clover leaf type and was a lot more than that but with no covers on

    Sent from my SM-G973F using Tapatalk
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

  2. Thanks hippo Thanked / Liked this Post
  3. #102
    Senior Member Rank = Supreme Champion davethefish1's Avatar
    Join Date
    Apr 2019
    Location
    Bedworth
    Posts
    5,959
    Thanks / Likes
    11916
    Quote Originally Posted by hippo View Post
    Im still deliberating on which type of heater to get and trying to work out the overall cost of one of the Inverter ASHP versus a cheaper in line type .

    Ive always assumed that the inline ones are cheap to buy , but expensive to run .

    However , I saw some figures from a chap on another forum , which I found "interesting"

    Last year he ran a 2KW profi heater and kept his pond at 15 degrees for 4 months during the winter at a cost of 44p per day . This sounds a bit too good to be true , to me . A rough calculation based on my own running costs suggest his heater would be running for under 2 hours per day .

    If anyone else has some experience running these types of heater , and the costs involved , please share . To be honest , though , if they`re so cheap to run - surely everybody would be using them , rather than fork out £2k + on a ASHP .
    as Ajm had said insulation makes a big difference.
    and it depends on how much you want to heat your pond, and it's size.
    also where in the country you are,
    those down south and in the west country don't get the deep frosts that central and northern counties do.

    if you only want to iron out spring/autumn temperature swings with good insulation and covers on.
    short term direct electric isn't too onerous. especially for smaller ponds.


    start heating through the year, with anything over 2000 gallons and you could recoup your costs with an ASHP in a couple of years or less...


    i was heating my old pond of 1000 gallons to 15C minimum during winter for about £40 a month. and my electric costs are 7p/ kwh economy 7 and 13p/ kwh day rate...
    my new pond has much better insulation but would cost a lot more at 2500 gallons. so i'm looking to hook it up to gas central heating.
    but at the moment is holding 24C with covers on overnight, and off during the day. with just a 1kw electro heater. and it's only 'on' for a few hours a night.
    but in winter it would probably be 'on' 24/7 at a much higher cost...of over £100 a month

  4. Thanks Ajm, hippo, john1 Thanked / Liked this Post
  5. #103
    Member Rank = Nisai JoaoM's Avatar
    Join Date
    Aug 2021
    Location
    Portugal
    Posts
    43
    Thanks / Likes
    61
    Very interesting topic.

    I am in the hottest region of Portugal, but the temp fluctuates a lot.
    It is not uncommon in some July-August days to reach 40ºC+ and them go down to below 20ºC at night.
    This January we had -4 in the coldest nights. But the sun shines more than 300 days in the year. So the pond warms up during the day.
    So in case, I do not plan to heat the pond (the electricity is also extremely expensive here), but I will heat the IBC grow out.

    Interestingly, there was a koi keeper in Norway that had a fantastic pond (all around his house) with great fish and no heat. The top 0,5m to 1m water freezes completely during their winter.
    His fish ate like pigs during the spring-summer and then completely shut down in the bottow of the pond (2,5m to 3m deep if I remember correctly) in late autumn and all winter. He had a window in the basement that allowed him to see the fish.
    Those koi were big and though as nails !

  6. Thanks Ajm, hippo, Twhitenosugar, dbs, john1 Thanked / Liked this Post
  7. #104
    Senior Member Rank = Kyusai hippo's Avatar
    Join Date
    Feb 2013
    Location
    Tarleton , Lancashire
    Posts
    1,091
    Thanks / Likes
    797
    Quote Originally Posted by davethefish1 View Post
    as Ajm had said insulation makes a big difference.
    and it depends on how much you want to heat your pond, and it's size.
    also where in the country you are,
    those down south and in the west country don't get the deep frosts that central and northern counties do.

    if you only want to iron out spring/autumn temperature swings with good insulation and covers on.
    short term direct electric isn't too onerous. especially for smaller ponds.


    start heating through the year, with anything over 2000 gallons and you could recoup your costs with an ASHP in a couple of years or less...


    i was heating my old pond of 1000 gallons to 15C minimum during winter for about £40 a month. and my electric costs are 7p/ kwh economy 7 and 13p/ kwh day rate...
    my new pond has much better insulation but would cost a lot more at 2500 gallons. so i'm looking to hook it up to gas central heating.
    but at the moment is holding 24C with covers on overnight, and off during the day. with just a 1kw electro heater. and it's only 'on' for a few hours a night.
    but in winter it would probably be 'on' 24/7 at a much higher cost...of over £100 a month
    Cheers , Dave .

    Like you say - so many variables . I do know the guy`s pond is in the NW - as it was on NW koi keepers on Facebook . Other than that , I`m not sure .

    I think if I got the inline type , Id probably end up upgrading to something more versatile pretty quickly . Might be better to bite the bullet and spend the extra to begin with
    Colin

    2500 Gallon Fibreglass Pond
    Draco Solum 16 , 400l Bio Chamber

  8. Thanks Ajm, davethefish1, john1 Thanked / Liked this Post
  9. #105
    Senior Member Rank = Supreme Champion davethefish1's Avatar
    Join Date
    Apr 2019
    Location
    Bedworth
    Posts
    5,959
    Thanks / Likes
    11916
    Quote Originally Posted by hippo View Post
    Cheers , Dave .

    Like you say - so many variables . I do know the guy`s pond is in the NW - as it was on NW koi keepers on Facebook . Other than that , I`m not sure .

    I think if I got the inline type , Id probably end up upgrading to something more versatile pretty quickly . Might be better to bite the bullet and spend the extra to begin with
    if you have the room i'd say go for it,
    one of the reasons i'm looking at gas heating is due to close neighbours at the back.
    and noise issues at night....

  10. Thanks hippo, john1 Thanked / Liked this Post
  11. #106
    Extreme Koi Member Rank = Sansai AntB's Avatar
    Join Date
    Oct 2014
    Posts
    130
    Thanks / Likes
    83
    I believe putting the heat pump inside the filter house only turns it into a fridge if the cold air is also vented into it, therefor acting as a chiller. If you vent outside there will be a (albeit small) benefit of any air drawn in being warmed by the electrical equipment inside and any ambient warmth. Any time the heat pump isn't working the air inside the filter house will warm providing a benefit upon start up. Most of the advise about installation on the web refers to heating and hot water for a house, but we aren't using it for the same purpose.

    When I finally get round to finishing my filter house I plan to move the heat pump into it and vent it through the fence so the cold air can't be drawn back in. In it's current position I get issues with icing in cold temperatures and I believe having it inside will help. The plan is that it will be a space in the wall that it can sit in so the vent will be outside the filter house so there will be no chance of any cold air affecting the filter house temp apart from any ambient air drawn in.

    As I don't cover in winter I plan to have an intake vent that draws in air from over the top of the pond to gain some recycled heating too.

  12. Thanks Twhitenosugar, john1, dbs Thanked / Liked this Post
  13. #107
    Quote Originally Posted by AntB View Post
    I believe putting the heat pump inside the filter house only turns it into a fridge if the cold air is also vented into it, therefor acting as a chiller. If you vent outside there will be a (albeit small) benefit of any air drawn in being warmed by the electrical equipment inside and any ambient warmth. Any time the heat pump isn't working the air inside the filter house will warm providing a benefit upon start up. Most of the advise about installation on the web refers to heating and hot water for a house, but we aren't using it for the same purpose.

    When I finally get round to finishing my filter house I plan to move the heat pump into it and vent it through the fence so the cold air can't be drawn back in. In it's current position I get issues with icing in cold temperatures and I believe having it inside will help. The plan is that it will be a space in the wall that it can sit in so the vent will be outside the filter house so there will be no chance of any cold air affecting the filter house temp apart from any ambient air drawn in.

    As I don't cover in winter I plan to have an intake vent that draws in air from over the top of the pond to gain some recycled heating too.

    This is what ive done , its the way to do it,

    installed in my filter house which is part of the fish house made of twin wall polycarbonate 10mm , it acts as a green house, the HEAT PUMP draws it air from the fish house and vents outside.

  14. Thanks AntB, john1, dbs Thanked / Liked this Post
  15. #108
    Quote Originally Posted by markini5 View Post
    This is what ive done , its the way to do it,

    installed in my filter house which is part of the fish house made of twin wall polycarbonate 10mm , it acts as a green house, the HEAT PUMP draws it air from the fish house and vents outside.
    Oh and right now, my heat pump is on , not costing a penny to run, as my shed roof has 2.8kwh solar array installed by me.

  16. Thanks john1, Ajm, dbs Thanked / Liked this Post
  17. #109
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
    Join Date
    Aug 2013
    Location
    N.Wales.
    Posts
    8,700
    Thanks / Likes
    15243
    Quote Originally Posted by markini5 View Post
    This is what ive done , its the way to do it,

    installed in my filter house which is part of the fish house made of twin wall polycarbonate 10mm , it acts as a green house, the HEAT PUMP draws it air from the fish house and vents outside.
    Makes sence that.
    John

  18. Thanks markini5, Ajm Thanked / Liked this Post
  19. #110
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
    Join Date
    Aug 2013
    Location
    N.Wales.
    Posts
    8,700
    Thanks / Likes
    15243
    Quote Originally Posted by markini5 View Post
    Oh and right now, my heat pump is on , not costing a penny to run, as my shed roof has 2.8kwh solar array installed by me.
    Tell us more how you do that can you run pumps etc from it?
    John

  20. Thanks Ajm, hippo, dbs Thanked / Liked this Post
  21. #111
    Quote Originally Posted by john1 View Post
    Tell us more how you do that can you run pumps etc from it?
    20210921_115447[1].jpg20210921_115357[1].jpg20210921_115336[1].jpg
    not much to tell really, its super easy to do,, yesterday it ran my heat pump and pond for 6 hours straight and sent excess energy back to the house which helped power house loads, then any extra the national grid stole for free,,,, but not for long next year will be increasing solar array to 8kwh and buying lifepo4 cells from china to make a 45kwh 48v storage battery that can then run my shed/workshop/pond
    and the heat pump 100% off grid

    never listen to the nay sayer's about solar that have zero experience of it, as you can see currently producing 1100w even though the sun isnt out .

  22. Thanks Twhitenosugar, Ajm, hippo, john1 Thanked / Liked this Post
  23. #112
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
    Join Date
    Apr 2020
    Location
    Europe
    Posts
    1,888
    Thanks / Likes
    3037
    How much did that setup cost you?

    Sent from my Pixel 4a (5G) using Tapatalk
    13,000L fibreglassed raised pond with window

  24. Thanks markini5, Ajm, john1, dbs Thanked / Liked this Post
  25. #113
    Quote Originally Posted by Twhitenosugar View Post
    How much did that setup cost you?

    Sent from my Pixel 4a (5G) using Tapatalk
    about £950 , panels and rails were brand new, grid tie inverter 3.6kwh was second hand.

    ive been into solar/wind renewables for a number of years , so i know what im doing .

    very easy to learn

  26. Thanks Twhitenosugar, Ajm, john1, dbs Thanked / Liked this Post
  27. #114
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
    Join Date
    Apr 2020
    Location
    Europe
    Posts
    1,888
    Thanks / Likes
    3037
    That's not bad for an upfront cost. Should pay for itself very quickly.

    I've been toying with the idea myself, i.e. a small DIY set up on the pergola roof, rather than a proper rooftop array installed by an accredited company to get the feed-in tarif.

    Sent from my Pixel 4a (5G) using Tapatalk
    13,000L fibreglassed raised pond with window

  28. Thanks markini5, Ajm, john1 Thanked / Liked this Post
  29. #115
    Quote Originally Posted by markini5 View Post
    about £950 , panels and rails were brand new, grid tie inverter 3.6kwh was second hand.

    ive been into solar/wind renewables for a number of years , so i know what im doing .

    very easy to learn
    this setup will pay for itself within 1 year.

    ive produced 2500kwh in the last 7 months since in installed it.

  30. Thanks Twhitenosugar, Ajm, john1, dbs Thanked / Liked this Post
  31. #116
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
    Join Date
    Apr 2020
    Location
    Europe
    Posts
    1,888
    Thanks / Likes
    3037
    Do you have a smart meter?

    If so does it recognise the excess solar power feeding your house, is being fed from the panels rather than your electricity supply?

    Sent from my Pixel 4a (5G) using Tapatalk
    13,000L fibreglassed raised pond with window

  32. Thanks john1, dbs Thanked / Liked this Post
  33. #117
    Quote Originally Posted by Twhitenosugar View Post
    That's not bad for an upfront cost. Should pay for itself very quickly.

    I've been toying with the idea myself, i.e. a small DIY set up on the pergola roof, rather than a proper rooftop array installed by an accredited company to get the feed-in tarif.

    Sent from my Pixel 4a (5G) using Tapatalk
    feed in tariff a total waste of time and money, will take years to pay the upfront costs back, and the feed in payments have been slashed by tory governments , so wouldnt be surprized if they slash it further ,

    mine isnt legit, as it feeds to national grid, however should the grid go down, my inverter also goes down as its g83 compliant as what installers fit.

    i back feed to the house via 16a artic caravan hookup lead , any energy produced is used up by the closest source to the inverter ie the pond/heatpump then whats left goes to house then grid.

    ive produce a peak of 20kwh in a day during the summer. average over the summer has been 15kwh
    not bad from such a small array 2.8kwh with positive tolerance its peaks at 3100w per hour from the panels that only happens when the sun is directly over the panels for around 1 hour at around 1pm by 6pm producing around 1000w providing you get good clear skies .
    even on shaded days i'd harvest around 8kwh
    but its dependant on the quality of the panels .

  34. Thanks Twhitenosugar, john1, dbs Thanked / Liked this Post
  35. #118
    Quote Originally Posted by Twhitenosugar View Post
    Do you have a smart meter?

    If so does it recognise the excess solar power feeding your house, is being fed from the panels rather than your electricity supply?

    Sent from my Pixel 4a (5G) using Tapatalk
    nope , no smart meter, i dont need one

    no it doesnt recognise what its feeding to what, it just produces the power and sends it,

    a hybrid off grid inverter will tell you power loads and how much it draws from the grid, but it doesnt feed to the grid. hybrid inverters will charge battery backs, if using lithium then a BMS is required .

    ive run off grid before with 48v 40kwh rolls surrette flooded lead acid batteries, down side with lead acid is they take far to long to charge 12+ hours , not good with solar , lithium take a few hours .

  36. Thanks Twhitenosugar, Ajm, john1, dbs Thanked / Liked this Post
  37. #119
    Extreme Koi Member Rank = Sansai AntB's Avatar
    Join Date
    Oct 2014
    Posts
    130
    Thanks / Likes
    83
    When finished my filter house roof will be south facing (well half of it) so I think I need to look into solar power, even if it just helps with the costs for the pond.

  38. Thanks markini5, Ajm, john1 Thanked / Liked this Post
  39. #120
    Quote Originally Posted by markini5 View Post
    nope , no smart meter, i dont need one

    no it doesnt recognise what its feeding to what, it just produces the power and sends it,

    a hybrid off grid inverter will tell you power loads and how much it draws from the grid, but it doesnt feed to the grid. hybrid inverters will charge battery backs, if using lithium then a BMS is required .

    ive run off grid before with 48v 40kwh rolls surrette flooded lead acid batteries, down side with lead acid is they take far to long to charge 12+ hours , not good with solar , lithium take a few hours .

    20210921_141642[1].jpg power increased to 1500w sun is still shaded by clouds, over 5kwh total today so far. Not bad to say this morning we had thick cloud cover .

    this is worth doing for anyone here, you only need a small space ideally a shed roof or similar, or even ground mounted will do..

    save £100's to £1000''''s on electricity every year.

    this installation will save me around £1000 a year in what the pond would otherwise cost via rip off energy companies.

  40. Thanks john1 Thanked / Liked this Post
 

 
Page 6 of 8 FirstFirst ... 45678 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT +1. The time now is 09:14 AM. Online Koi Mag Forum
Powered by vBulletin® Version 4.2.3
Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.

vBulletin Improved By vBFoster® (Lite Version), © UltimateScheme, Ltd.