Nibe Fighter 360p ashp costing me loads to run

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  • grahamc2003
    grahamc2003 Posts: 1,771 Forumite
    ra200 wrote: »
    Compressor 650w
    fan 170w
    circulation fan 100w
    =22.08 units of electricity a day

    So if running 24hrs a day constant to try keep the water and house warm that is just over 22 units of electric a day so you can imagine how much you would use in winter mode with the immersion permitted which you need to keep the house and water hot,

    i understand that if it's an inverter type, the compressor (and outside fan) power would normally be below the max. If not an inverer type, then the compressor (and outside fan) should cycle off frequently. So either way, the energy consumed should be less than 22 kwh if operating as it should be. Can't you stick an energy monitor directly on the heatpump supply, and measure the power and energy directly?
  • ra200 wrote: »
    Well guys had a engineer from nibe here today and a few people from melin homes the nibe engineer changed a sensor and some pcb boards but the system was set up right in the first place by greenhill so will see if the electricity usage now drops down,

    The Nibe engineer could not give a answer to why the system is using so much power but basic maths tells me which just the compressor and fan and pump running we are looking at a min of 22 units a day with no hot water and luke warm heating,

    I still stand by what i have been told by other heating companies and people who have contacted me and that the nibe 360p is under size for our house and can not meet the home energy needs,

    Also to add via another forum i have been contacted by a well known TV show about my problems with the nibe system so there is alot more people with problems with the nibe out there,

    My electric bill has been all most £1700 so far for 11 month electricity and the system was off between may and the end of september (all most 5 months) and i have another bill on the way on the 21st of january,

    We're be seeing you on the new series of Watchdog then?!
    Mortgage Started: £131,500 (June 2010)
    Mortgage Paid Off: £33,000 (25.1%)
    Mortgage Remaining: £98,500
  • i understand that if it's an inverter type, the compressor (and outside fan) power would normally be below the max. If not an inverer type, then the compressor (and outside fan) should cycle off frequently. So either way, the energy consumed should be less than 22 kwh if operating as it should be. Can't you stick an energy monitor directly on the heatpump supply, and measure the power and energy directly?

    Thats quite correct because I was getting 16KWh/day usage just using the above.
    Mortgage Started: £131,500 (June 2010)
    Mortgage Paid Off: £33,000 (25.1%)
    Mortgage Remaining: £98,500
  • ra200
    ra200 Posts: 172 Forumite
    edited 11 January 2011 at 10:22PM
    Hi when i said 22kw that is the max figure so constant use is going to be a bit below that in spring/autumn mode but this time a year the compressor and fan are on constant,

    Some one from Melin / Greenhill are coming back tomorow to fit a energy monitor directly on the nibe and one on the electricity meter
    then they can see how much i am using so some one might then answer my question why is it using so much electric and what are they going to do about is as today no one could answer that it just seemed the engineers wanted to say the system is eco friendly and cheap to run (which is not) and that natural gas is due to run out very soon it is alright them saying that but they are not the ones paying the bill it just seemed like they wanted to get them self off the hook for installing it,

    But if it still uses loads of electric my next point of call is the media (who have already contacted me) & the housing ombudsman if no luck there i will have to see if my local council will rehouse us as the house is unsuitable as i can not pay the high cost to run it.

    But i have had to switch the Nibe 360p off now as it is leaking water every where:mad: and the floor is soaking the last time i checked the nibe is when the engineer was just leaving and that was 5pm so some one did a good job of working in it :( the nibe 360p has never had a faulty untill today when they started messing with it the unit has never been faulty it has just been uneconomical and expensive to run,

    i understand that if it's an inverter type, the compressor (and outside fan) power would normally be below the max. If not an inverer type, then the compressor (and outside fan) should cycle off frequently. So either way, the energy consumed should be less than 22 kwh if operating as it should be. Can't you stick an energy monitor directly on the heatpump supply, and measure the power and energy directly?
  • Aceboyz
    Aceboyz Posts: 48 Forumite
    edited 19 January 2011 at 1:54PM
    ra200 wrote: »
    The same here it have been alot warmer outside today and even right now at this time it is 7c outside and the nibe is still eating electric,

    Do you realize that even in autumn/spring mode so the immersion heater is block but the compressor and pumps and fan in the nibe use alot of electric

    We went to the CAB yesterday for some advice on what legal action we can take against either the building contractors or Nibe and basically the Nibe system is not Fit For Purpose, realistically the housing association should be taking either of these companies to Trading Standards, if they don't we will.

    I didn't know much about Sweden until yesterday, obviously this is where this biggest pile of scrap metal comes from and to be perfectly honest wish they had kept it to themselves because in this country this unit will never beat a gas combi boiler. The Nibe system runs very well in Sweden because they don't have any gas in the country and only use hydroelectric, no wonder it's so cheap to run. Air source pumps are extremely expensive until the out door temperature reaches 8 deg, to be honest i think it's higher than this. Anything below this and it's not cost effective so for 5months of the year we are in trouble with high cost bills.

    We have paid one bill and will not be paying anymore, if the electricity wants to take legal action against me for this than the housing association will then be held responsible.

    We have contacted Midlands Today (news) and they are willing to take this story online along with our local newspaper, i look forward to highlighting the Nibe name through television and the news papers i will not let go until this unit is removed from our home.

    Even since the Nibe engineer has been out the heating is up and down, one morning is nice and warm then the next it's freezing and as for water during the day we just don't have any the hot water sensor suggests it's running at 30+ deg but the water runs cold, the only way to get hot water even for washing up is either to run the kettle or put the immersion water on for 3hrs, which is just a joke.

    One more thing, sorry i go on but am so frustrated at this system they have given us. Our house is what that call Phase 2 basically Phase 1 was a block of flats and Phase 2 was a block of flats with 2 semi-detached house and 7 terraced houses. The Phase 1 flats were build with Gas and combi boilers and run extremely well, now Phase 2 were built with these things and are so expensive. We have been told Phase 2 had to meet the Code 3, if that's the case then why didn't they put combi boilers in with a solar panel on the roof, we have been told by the Energy Trust this would have been more than sufficient and would have cost less to install. The Nibe system costs £4000 to install, a good quality combi boiler would have cost £2000 and there is no way a solar panel would have cost another £2000.

    Also the energy guy that surveyed this told us the house was not built for low cost but for low energy to meet the carbon footprint, but if this system is using so much electricity how can it be meeting the carbon footprint there is just no chance.
  • ra200
    ra200 Posts: 172 Forumite
    edited 12 January 2011 at 1:52PM
    Well Melin contractors have been and fixed the leak and have installed a energy monitor on the nibe and are coming back to install one on the electric meter next week.

    All i can tell you now is that the nibe is using 9p of electric a hour with the compressor and fan running but when the immersion heater kicks in it is now using 0.97p per hour 7.01kw a hour i will let the water and heating get up to temp and then i will start posting up daily costs,

    And you are right with sweden their electricity prices the prices in sweden are far lower then ours,

    Your water does not seem to be warm is the nibe in winter mode as it needs to be in winter mode this time of year or the immersion heater will not kick in,

    Im sure it would have been better for melin homes to install a combi boiler with solar , Even the energy trust told me melin homes really should not have installed the nibe system as there was gas avalible at the house due to gas being so much cheaper than electricity.

    I blame melin homes for not field testing the nibe 360p and nibe uk as the house builder greenhill only installed what they where told to and the installation engineer from greenhill did a good job of installing it considering it was the first time he has installed a ashp system.
    Aceboyz wrote: »
    We went to the CAB yesterday for some advice on what legal action we can take against either the building contractors or Nibe and basically the Nibe system is not Fit For Purpose, realistically the housing association should be taking either of these companies to Trading Standards, if they don't we will.

    I didn't know much about Sweden until yesterday, obviously this is where this biggest pile of scrap metal comes from and to be perfectly honest wish they had kept it to themselves because in this country this unit will never beat a gas combi boiler. The Nibe system runs very well in Sweden because they don't have any gas in the country and only use hydroelectric, no wonder it's so cheap to run. Air source pumps are extremely expensive until the out door temperature reaches 8 deg, to be honest i think it's higher than this. Anything below this and it's not cost effective so for 5months of the year we are in trouble with high cost bills.

    We have paid one bill and will not be paying anymore, if the electricity wants to take legal action against me for this than the housing association will then be held responsible.

    We have contacted Midlands Today (news) and they are willing to take this story online along with our local newspaper, i look forward to dragging the Nibe name through all sorts of mud and making sure i can damage their company as much as possible, this is something i will not let go until this unit is removed from our home.

    Even since the Nibe engineer has been out the heating is up and down, one morning is nice and warm then the next it's freezing and as for water during the day we just don't have any the hot water sensor suggests it's running at 30+ deg but the water runs cold, the only way to get hot water even for washing up is either to run the kettle or put the immersion water on for 3hrs, which is just a joke.

    One more thing, sorry i go on but am so frustrated at this system they have given us. Our house is what that call Phase 2 basically Phase 1 was a block of flats and Phase 2 was a block of flats with 2 semi-detached house and 7 terraced houses. The Phase 1 flats were build with Gas and combi boilers and run extremely well, now Phase 2 were built with these things and are so expensive. We have been told Phase 2 had to meet the Code 3, if that's the case then why didn't they put combi boilers in with a solar panel on the roof, we have been told by the Energy Trust this would have been more than sufficient and would have cost less to install. The Nibe system costs £4000 to install, a good quality combi boiler would have cost £2000 and there is no way a solar panel would have cost another £2000.

    Also the energy guy that surveyed this told us the house was not built for low cost but for low energy to meet the carbon footprint, but if this system is using so much electricity how can it be meeting the carbon footprint there is just no chance.
  • ra200
    ra200 Posts: 172 Forumite
    Well the Nibe 360p is back up to temp both the hot water is now 55c and flow is at 33c and the outdoor temp is 9c now i will see how much it is really using,

    It has taken about a hour for the system to get back up to temp and it cost £0.91 to bring it back up to temp and used 6.9kwh of electric to do it but it is 9c out now any colder and it would have cost more,
  • Aceboyz
    Aceboyz Posts: 48 Forumite
    edited 19 January 2011 at 1:55PM
    ra200 wrote: »
    Well the Nibe 360p is back up to temp both the hot water is now 55c and flow is at 33c and the outdoor temp is 9c now i will see how much it is really using,

    It has taken about a hour for the system to get back up to temp and it cost £0.91 to bring it back up to temp and used 6.9kwh of electric to do it but it is 9c out now any colder and it would have cost more,

    Totally agree anything below 7 deg would have been so much more expensive.

    We have had our housing office from Orbit here today and they are urgently trying to get this major problem sorted. He is trying to get most of our money back for the elecy bill, we have said we don't mind paying £60.00 a month but not £178 or £200.

    With us we can't fault Orbit in anyway because Aspects the building contractors said this would meet Code 3 and be cost and energy efficient, so realistically Orbit were misinformed.

    The only realistic outcome to this solution would be to rip this rubbish out and install gas with combi boiler and to keep up with the code 3 just add a solar panel to the roof for the hot water, we'll just have to wait and see on this now.
  • ra200
    ra200 Posts: 172 Forumite
    edited 12 January 2011 at 7:18PM
    Keep us updated

    Right had the energy monitor running which is connected direct to the nibe 360p since this morning and when the immersion heater is not running and just the compressor and fan and pump are running the nibe is using around 0.78kw of electricity so that is
    24 x 0.78kw = 18.72 units per day
    then
    18.72 x 14p = £ 2.62p per day = 78.60p per month inc vat for a cold house and cold water

    That is £78.60p per month minimum it can not drop any lower than this it is physically impossible unless i switch the unit off, So when the immersion heater is running and also we start using the hot water the cost it going to go through the roof

    Then today when the immersion heater kicks in the usage goes up from 0.78kw to 7.01kw

    i will use the hot water tonight to wash the dishes and run one bath and post back with how much it has cost.


    Aceboyz wrote: »
    Totally agree anything below 7 deg would have been so much more expensive.

    We have had our housing office from Orbit here today and they are urgently trying to get this major problem sorted. He is trying to get most of our money back for the elecy bill, we have said we don't mind paying £60.00 a month but not £178 or £200.

    With us we can fault Orbit in anyway because Aspects the building contractors said this would meet Code 3 and be cost and energy efficient, so realistically Orbit were misinformed.

    The only realistic outcome to this solution would be to rip this rubbish out and install gas with combi boiler and to keep up with the code 3 just add a solar panel to the roof for the hot water, we'll just have to wait and see on this now.
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