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  1. #21
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by RS2OOO View Post
    My pond is at 15.9C right now.

    Air temp highs were briefly at 13C but averaging 11C today, so it's definitely holding temps to some degree.

    Sent from my Pixel 4a using Tapatalk
    You still running the 100w
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  3. #22
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Yes, still running it, no idea what difference its making if any so need to compare with others.

    Without covers and the 100w I think it would be 12C.

    Sent from my Pixel 4a using Tapatalk

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  5. #23
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Outside temps 9c. But phone says feels like 6c. And it does feel 6c.
    Pond temp is now 12.6c. Just fed the sharks.
    One feed a day now. But a biggy.
    Just put a load of aqua resolve in the pond
    For winter.
    Fred

    Sent from my SM-G960F using Tapatalk

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  7. #24
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by freddyboy View Post
    Outside temps 9c. But phone says feels like 6c. And it does feel 6c.
    Pond temp is now 12.6c. Just fed the sharks.
    One feed a day now. But a biggy.
    Just put a load of aqua resolve in the pond
    For winter.
    Fred

    Sent from my SM-G960F using Tapatalk
    Same temp as mine mate . Only i havnt got covers on yet this weeks job
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  9. #25
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by RS2OOO View Post
    Yes, still running it, no idea what difference its making if any so need to compare with others.

    Without covers and the 100w I think it would be 12C.

    Sent from my Pixel 4a using Tapatalk
    What you think its costing to run the 100w
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  11. #26
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    About 32p a day.

    I think the 300w heater would be a lot more effective and cost around 90p a day.

    Sent from my Pixel 4a using Tapatalk

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  13. #27
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by RS2OOO View Post
    About 32p a day.

    Sent from my Pixel 4a using Tapatalk
    Hmmm that could be an idea if it would work on my setup
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  15. #28
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by freddyboy View Post
    Outside temps 9c. But phone says feels like 6c. And it does feel 6c.
    Pond temp is now 12.6c. Just fed the sharks.
    One feed a day now. But a biggy.
    Just put a load of aqua resolve in the pond
    For winter.
    Fred

    Sent from my SM-G960F using Tapatalk
    Aqua resolve what is it and what's it for Fred ?

    Got it now, it treats blanket weed
    Last edited by Tom Koi; 11-10-2020 at 02:20 PM.

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  17. #29
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by RS2OOO View Post
    About 32p a day.

    I think the 300w heater would be a lot more effective and cost around 90p a day.

    Sent from my Pixel 4a using Tapatalk
    Hi RS, Got a 350 gal QT that's close to being up and running and managed to find a 300w heater I had in shed, wondering it that would be ok to heat it for now until my inline 3kw heater turns up, which I hope will be cheaper to run?

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  19. #30
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Quote Originally Posted by Tom Koi View Post
    Hi RS, Got a 350 gal QT that's close to being up and running and managed to find a 300w heater I had in shed, wondering it that would be ok to heat it for now until my inline 3kw heater turns up, which I hope will be cheaper to run?
    I'm no authority on these matters but was surprised at how well my temps have maintained and stabilised even with a basic fish tank heater. Maybe in winter it will have barely any effect at all.

    But for a 350 gal grow on I'd go for it, set it at the lowest setting (usually around 18C) and hopefully it will help hold temps up and prevent the temp fluctuations that a small tank normally suffers from, but doubt it would be enough to raise temps by any meaningful margin.

    Sent from my Pixel 4a using Tapatalk

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  21. #31
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by RS2OOO View Post
    I'm no authority on these matters but was surprised at how well my temps have maintained and stabilised even with a basic fish tank heater. Maybe in winter it will have barely any effect at all.

    But for a 350 gal grow on I'd go for it, set it at the lowest setting (usually around 18C) and hopefully it will help hold temps up and prevent the temp fluctuations that a small tank normally suffers from, but doubt it would be enough to raise temps by any meaningful margin.

    Sent from my Pixel 4a using Tapatalk
    Cheers RS, might be a tad expensive to warm up tank from scratch though.

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  23. #32
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Quote Originally Posted by Tom Koi View Post
    Cheers RS, might be a tad expensive to warm up tank from scratch though.
    Shouldn't be too bad. At say 14p per kWh running a 300w heater will cost £1 for every 24 hours..... If my man maths are correct.

    Sent from my Pixel 4a using Tapatalk

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  25. #33
    Senior Member Rank = Adult Champion Mikeh83's Avatar
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    For what it’s worth I have a 320gal QT and I have an inline 3kw heater on it holding 22c currently and I have been monitoring the electricity meter and not seen a meaningful variance and also never caught it actually running. Likely comes on and off in the night time. I have just taken delivery of a digital thermostat that I will be adding inline as not overly happy with the onboard analogue one in the heater as it allows the temp to fluctuate +-2c I want a greater level of accuracy . And I assume it will also increase efficiency


    Sent from my iPhone using Tapatalk

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  27. #34
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    That's the main difference, a 3kw heater will use 10x more electric then a 300w heater when it's on, but won't be on 24/7.

    For equivalent cost the 3kw would need to only be on for 2.5 hours in a 24 hour period.

    Sent from my Pixel 4a using Tapatalk

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  29. #35
    Senior Member Rank = Adult Champion Mikeh83's Avatar
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    I think the main reason for me oversizing was so when I do water changes the temperature does not fluctuate as the heater can quickly stabilise it. This would work fine but the thermostat is lettting it down


    Sent from my iPhone using Tapatalk

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  31. #36
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by Mikeh83 View Post
    For what it’s worth I have a 320gal QT and I have an inline 3kw heater on it holding 22c currently and I have been monitoring the electricity meter and not seen a meaningful variance and also never caught it actually running. Likely comes on and off in the night time. I have just taken delivery of a digital thermostat that I will be adding inline as not overly happy with the onboard analogue one in the heater as it allows the temp to fluctuate +-2c I want a greater level of accuracy . And I assume it will also increase efficiency


    Sent from my iPhone using Tapatalk


    Have you a link to the one you've got Mike?

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  33. #37
    Senior Member Rank = Adult Champion Mikeh83's Avatar
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    Quote Originally Posted by Tom Koi View Post
    Have you a link to the one you've got Mike?
    Take a look here don’t want to hijack Steve’s post.

    Digital thermostat help needed
    https://r.tapatalk.com/shareLink/top...ink_source=app


    Sent from my iPhone using Tapatalk

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  35. #38
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Mikeh83 View Post
    Take a look here don’t want to hijack Steve’s post.

    Digital thermostat help needed
    https://r.tapatalk.com/shareLink/top...ink_source=app


    Sent from my iPhone using Tapatalk
    Thats the whole sport of this forum to see who can hijack the most . Frim always seems to win like
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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  37. #39
    Senior Member Rank = Jussai Tom Koi's Avatar
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    Quote Originally Posted by Ajm View Post
    Thats the whole sport of this forum to see who can hijack the most . Frim always seems to win like
    I've got to own up to doing it as well,

    Apologies.

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  39. #40
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Tom Koi View Post
    I've got to own up to doing it as well,

    Apologies.
    Tut tut

    You'll never see me doing that lol
    Last edited by Ajm; 11-10-2020 at 06:45 PM.
    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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