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Solar Water Heating - Main Water Heating Fuel

  • 30-09-2009 2:58pm
    #1
    Smcgie
    Registered Users, Registered Users 2 Posts: 1,379 ✭✭✭


    Hi all

    I have inputted the solar water heating and am getting quite a poor result on the cert. Over 20k of upgrades and still only a C2, hoping to get to a B

    Basically on the energy requirements tab - fuel data - main water heating system - select

    I have inputted Heating oil as the boiler is (or was) the primary water heating solution. My question now is can i choose 'None' as the solar panels are the main heating source after the upgrade?


Comments

  • #2
    BERmad
    Registered Users Posts: 71 ✭✭BERmad


    Smcgie wrote: »
    Hi all

    I have inputted the solar water heating and am getting quite a poor result on the cert. Over 20k of upgrades and still only a C2, hoping to get to a B

    Basically on the energy requirements tab - fuel data - main water heating system - select

    I have inputted Heating oil as the boiler is (or was) the primary water heating solution. My question now is can i choose 'None' as the solar panels are the main heating source after the upgrade?

    What is the area of the solar pannels? As far as i know the solar pannels will not be enough to heat all the water needed through out the intire year so the boiler would still be the main heating source. I no that they can be set up to contribute to the space heating but I dont no how to deal with that in DEAP.


  • #3
    sydthebeat
    Subscribers Posts: 42,004 ✭✭✭✭sydthebeat


    have you set the overshading factor to 1 ??

    this obviously isnt a new house...

    you cannot input none into the 'fuel' tab if and when you have inputted a bolier in the 'water heating' tab.

    DEAP manual section 4.4 states:
    "Solar Water Heating A solar water collector coupled with solar water storage reduces the fuel needed for DHW (see Appendix H).
    The solar water storage can heat the lower part of a multi heat source cylinder or as a separate solar cylinder.
    Solar water heating cannot provide all of the hot water requirements of a dwelling and a main water heating fuel type must be specified at all times"


  • #4
    Smcgie
    Registered Users, Registered Users 2 Posts: 1,379 ✭✭✭Smcgie


    sydthebeat wrote: »
    have you set the overshading factor to 1 ??

    this obviously isnt a new house...

    you cannot input none into the 'fuel' tab if and when you have inputted a bolier in the 'water heating' tab.

    DEAP manual section 4.4 states:
    "Solar Water Heating A solar water collector coupled with solar water storage reduces the fuel needed for DHW (see Appendix H).
    The solar water storage can heat the lower part of a multi heat source cylinder or as a separate solar cylinder.
    Solar water heating cannot provide all of the hot water requirements of a dwelling and a main water heating fuel type must be specified at all times"

    Cheers Syd, thats the info i was looking for.


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