Underfloor heating

Discussion in 'C-Bus Wired Hardware' started by Veryrainyday, Jan 8, 2016.

  1. Veryrainyday

    Veryrainyday

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    Any experiences good/bad with Cbus and underfloor heating? Thinking that we will do a few bathrooms with under floor heating and Cbus controlled thermostat but not sure if the hassle/complexity are worth it or not. Is this straightforward?
     
    Veryrainyday, Jan 8, 2016
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  2. Veryrainyday

    NickD Moderator

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    I would stay away from the C-Bus Thermostat... whilst underfloor heating is one of the few applications that the C-Bus Thermostat is actually suitable for, it's unnecessarily complicated, not to mention fairly ugly.

    If you're using electric underfloor heating, just use a relay channel to switch it and a temperature sensor (5104DTSI) with a sensor in the slab and another in the room and a bit of logic code.

    Nick
     
    NickD, Jan 11, 2016
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  3. Veryrainyday

    Veryrainyday

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    Are you able to post a pointer to the logic code? Also, any reason why a sensor in both the room and the slab/underfloor is required? (I'd have thought only underfloor is required or is the room sensor needed for calibration?)
     
    Veryrainyday, Jan 14, 2016
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  4. Veryrainyday

    conor1

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    Underfloor

    Hi
    Another option is to use Cbus relay purely for bringing on heat mat and use temp probe and thermostat that comes with various heating matts , I've used this myself and is reliable and very straight forward .
    Cheers
    Conor
     
    conor1, Jan 14, 2016
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  5. Veryrainyday

    znelbok

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    Not having an underfloor heating system I wonder do you change the temperature at all or do you just set it and forget it.

    To just use a relay would mean that you cant change the temperature from C-bus, whereas using a thermostat would give you that option.
     
    znelbok, Jan 14, 2016
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  6. Veryrainyday

    conor1

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    Heating

    Yes agree you can't change temperature from CBus , I just set temperature manually as it's not the primary heating in my bathroom it doesn't need any alterations normally .
    Cheers
    Conor
     
    conor1, Jan 16, 2016
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  7. Veryrainyday

    Matthew

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    In my experience, all the underfloor heating systems come with their own temp sensors & Controller.
    as it was already supplied & self contained, there was no value to include it on my c-bus system.
     
    Matthew, Jan 25, 2016
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  8. Veryrainyday

    Phil Summers

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    Check out the Aube TH131 UFH controller. It has an input line that allows you to alter the set-point, command "off" and frost-protection modes.

    I used a couple of relay channels, some logic and a few diodes to link up to CBUS.
     

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    Phil Summers, Mar 10, 2016
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  9. Veryrainyday

    Robbo_VIC

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    Every under floor heating system I've dealt with so far has been a standalone system with a wall controller to set temperature, then the Cbus Relay is just used to turn the whole unit on or off.
     
    Robbo_VIC, Mar 17, 2016
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