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Space/water heating fuel importance

  • 29-01-2009 2:58pm
    #1
    Jimbo
    Closed Accounts Posts: 2,379 ✭✭✭


    Hi,

    I'm doing an assesment on a house built in 2006.
    The house is standard enough for it's time i.e.
    Semi- D
    Cavity walls with 55mm 'Aeroboard Platinum' in cavity
    55mm Platinum in floor
    200mm Moy Isover wrap in roof.

    The issue is that both space and water heating are from electricity- immersion water heating and storage rads.

    I'm getting an E1 rating - 303kwh/m2/yr.

    Does this sound wrong?

    Then, if I change the fuel type for main space and water hesting to mains gas it brings it up to a C1.
    Does fuel type really have that effect on the rating?


Comments

  • #2
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    jimbo78 wrote: »
    Hi,

    I'm doing an assesment on a house built in 2006.
    The house is standard enough for it's time i.e.
    Semi- D
    Cavity walls with 55mm 'Aeroboard Platinum' in cavity
    55mm Platinum in floor
    200mm Moy Isover wrap in roof.

    The issue is that both space and water heating are from electricity- immersion water heating and storage rads.

    I'm getting an E1 rating - 303kwh/m2/yr.

    Does this sound wrong?

    Then, if I change the fuel type for main space and water hesting to mains gas it brings it up to a C1.
    Does fuel type really have that effect on the rating?

    yes it does....

    electricity multiplies the primary energy usage by a factor of 2.7 (for every 2.7 kw/hr or enegy put into our power stations

    whereas gas / oil only multiplies it by 1.1...

    thats a HUGE difference....


    by the way...

    can i ask how you know the manufacture and material used in the floors and walls??


  • #3
    Jimbo
    Closed Accounts Posts: 2,379 ✭✭✭Jimbo


    sydthebeat wrote: »
    yes it does....

    electricity multiplies the primary energy usage by a factor of 2.7

    whereas gas / oil only multiplies it by 1.1...

    thats a HUGE difference....


    by the way...

    can i ask how you know the manufacture and material used in the floors and walls??

    House is only being sold now.
    All information I have is from developer. I'm treating it as a new house.

    He's not going to be too pleased to hear his relatively new house scores an E1.
    I've never encountered electric heating alone before.


  • #4
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    jimbo78 wrote: »
    House is only being sold now.
    All information I have is from developer. I'm treating it as a new house.

    He's not going to be too pleased to hear his relatively new house scores an E1.
    I've never encountered electric heating alone before.

    does it have a cert of compliance??

    a house of that spec doesnt comply to Part L 2005....!!!!!

    doesnt even come anywhere close......


  • #5
    sinnerboy
    Closed Accounts Posts: 5,433 ✭✭✭sinnerboy


    jimbo78 wrote: »
    Hi,
    a house built in 2006.
    Cavity walls with 55mm 'Aeroboard Platinum' in cavity
    55mm Platinum in floor
    200mm Moy Isover wrap in roof.

    Holy f*** ! Note to all those ( and to be fair , only some do this ) post "it's not rocket science" to build a house . If you want to build a pile of crap it's not


  • #6
    Jimbo
    Closed Accounts Posts: 2,379 ✭✭✭Jimbo


    To be fair, I think it was substantially finished at the end of 2005 so 2005 regs don't apply but funnily enough it does pass in the overall heat loss method.


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  • #7
    sydthebeat
    Subscribers Posts: 42,171 ✭✭✭✭sydthebeat


    jimbo78 wrote: »
    To be fair, I think it was substantially finished at the end of 2005 so 2005 regs don't apply but funnily enough it does pass in the overall heat loss method.

    it doesnt comply with the MPCDER.....

    anyway...


    E1 it is....


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