Russel Hobbs Heater with thermostat

Discussion in 'Equipment Reviews' started by f-fish, Jun 10, 2012.

  1. f-fish

    f-fish #unspecified

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    OK not the normal equipment review - granted.

    rhheater.jpg


    This is about a room heater, been looking for a while for something that has a built-in thermostat that will keep the room at a constant temp. In years gone by I have tried the econo-panel thing, oil heaters etc. This is the first time I am impressed from the word go.

    Use:
    Keep the room from dropping below 18 degrees.

    Advantage:
    non-timer based heating, has 5 pre-set temps 27,24,21,18 and frost (4)
    In the fishroom I set it up on 18 degrees (all my fish seem to survive at about this temp - some tanks have the heater set to 19-20 degrees, other have no heater)

    Specifications:
    Russell Hobbs Ceramic Heater (RHCH16)

    -3 settings - fan/low/high
    -Electronic control panel with lcd display
    -10 hours timer
    -Electronic adjustable thermostat
    -Built in electronic frost watch
    -Tip over safety switch
    -Overheating protection
    -Oscillating feature for both vertical and horizontal positions
    -Electronic remote control
    -Wattage 1800W



    Disadvantage: Price - Woolworths was the cheapest at 750
    Not sure about the "lcd display" all I see is LEDs

    The control measurement for this was the digital Oregon unit it was on 18.3 degrees when I plugged the heater in - set the thermal selection to 18 degrees and the unit would not heat, upped the value to 21 degrees presto unit heats till the room is a toasty 20.9 on the Oregon .. this was not on swivel but could have done that I suppose for a better mix. Unit is now back to 18 degrees set and waiting for night and room temp to drop.

    No clue what the standby electricity consumption is.

    Later Ferdie

    rhheater.jpg
     
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  3. brentnorm

    brentnorm

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    Nice review. So haw did it do at night when room temp dropped?


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  4. OP
    f-fish

    f-fish #unspecified

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    So the unit is happy to keep the room between 24-21 on - off as expected, but it only does a single cycle from manual on to off when set to a 18 degrees. A bit of a bust, but I still used this feature while working in the room.

    As for the room temp during winter - I need to go pull my logs from the arduino logger that might still be running .. Let me go check on that.

    Later Ferdie
     
  5. OP
    f-fish

    f-fish #unspecified

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    Gonna pull the heater from storage and see if I can rather use it at the lower temps and do the actual on / off via a sonoff. Have not looked at it for 4 years or so ... so better see if it still works. I hear we are expecting -0 in JHB tonight.

    Later Ferdie
     
  6. OP
    f-fish

    f-fish #unspecified

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    Ok so just hooked the room heater up to a power monitored line ..
    upload_2017-6-8_3-44-12.png

    Room temp dropped to 17. heater kicks in for a few minutes room moves to 18 degrees. Turns out that 1800 watt looks more like 600watt will need to keep an eye on this.

    Have not hooked up a dedicated lower temp switch for it yet .. first want to see how often it really switches in.

    Later Ferdie
     
  7. Pierré Schoonraad

    Pierré Schoonraad Rainbow Freak

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    If it keeps the temp where it should be but only uses 600W it's win win

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  8. OP
    f-fish

    f-fish #unspecified

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    Yeah I have been reading up on the heating element it uses .... PTC so that draw might just have been so low because the temperature that it reached was not the max it could go to ... so I need to play a bit with it.

    "PTC ceramic material is named for its positive thermal coefficient of resistance (i.e., resistance increases upon heating). "

    Sooo bad news when I do a power cycle on it does not remember the last setting it was on - actually it is not even on. Bit of a bummer, might have to open it up and see what I can hot wire, but for now it is in standby more for 18 degrees - no clue if it will kick in again, at least I can now monitor its power consumption even if I am not around - something that was not possible in 2012 when I first played with it.

    Later Ferdie
     
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