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  1. #1
    Senior Member Rank = Mature Champion smartin's Avatar
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    heat pump advice

    Good morning all,
    ambient temps are again zero plus a distinct wind chill, not had a heat pump before so just checking with you guys i am running it as you should, the pond was around 13.8c when the pump was installed last Tuesday, i have set the pump to 15c and since installation it looks like it allows the temp to drop to 13.9c / 14c and then it comes on until display says 15c on the pump then it turns itself off, i have the heat pump on its lowest running setting called silent which i believe means it runs slower compared the other two running speeds and so warms up slightly slower but uses less electric to do so.... pump comes on every 12 hours or so losing a degree every 12 hours due to cold ambient temps.... not costing too much pleasingly but a little concerned temps are going up and down by a degree every 12 hours or so..... is this ok for the fish? temps have been very cold past few days and nights and with wind chill must be below zero at times....
    I have turned air pumps down a bit this morning and turned off trickle, shower running at 6600l all insulated as is pipework.... fish active and feeding well twice daily still....thanks Steve.


    Last edited by smartin; 28-11-2021 at 11:32 AM.
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

  2. #2
    Senior Member Rank = Kyusai Spongebob's Avatar
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    Steve,

    Mine is variable by 2 degrees, never had an issue. Personally i would have the setting on powerful in these weather conditions. Mine went into error mode yesterday when the cold hit, and that's the only thing i can think of (I had it on smart setting) less electric but less power in sub zero temps. I generally only run mine in the daytime in the warmest temps, and as you say it then cools overnight. However in these sub zero temps Ive got it set to remain at constant coming on overnight, however uneconomical. But under normal circumstances, dont see the point in running overnight when it will struggle most and cost most. We look like going down to -4 tonight.
    9000 ltr, FG, BD, Nexus 220, Draco drop in, Remora i9 ASHP, Econbead 50, Roto Innovations shower

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  4. #3
    Senior Member Rank = Mature Champion smartin's Avatar
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    Hi Spongebob,
    thanks for the information, i will change to different power setting.....
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

  5. #4
    Moderator Rank = Supreme Champion Feline's Avatar
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    Fluctuations of 1C (or even 2C) won’t make any difference to your fish. They’ve evolved to swim around bodies of water that vary by more than that from deep to shallow parts. You certainly wouldn’t be able to detect the difference with your hand either.

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  7. #5
    Senior Member Rank = Mature Champion smartin's Avatar
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    thanks Feline, was expecting an issue this morning with the pump as it was -4 last night but its working good as gold this morning....
    2200 gallons, infinity window, BD
    Evolve 4000 combi amalgam UV
    10k,20k AF pumps
    Skimmer trickle.

  8. Thanks davethefish1, dbs Thanked / Liked this Post
 

 

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