ragg987

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ragg987 last won the day on June 7 2017

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About ragg987

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  • About Me
    Detached 330m2 house on 3 levels with separate garage, MBC timberframe, Integraspec ICF + Kryton waterproof concrete basement, Norrsken 3G glazing. Clay tiles and zinc roofing, STO render on carriers plus some timber cladding.

    Designed to Passiv standards and tested to 0.57 ACH @ 50Pa. Heating and DHW using 7kW ASHP. UFH to ground and basement only. Airflow MVHR with in-line electrical heater to first floor. PV 4kWp
  • Location
    Aylesbury

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  1. I took possession of the old house and moved it to a minimal tariff whilst we went through planning. Disconnection carried a charge. We went on to a £5 a month direct debit. At the end the supplier refunded the unused portion. Was worth having electric on the odd occasions we popped in to do some bits e.g. gardening to stop it taking over the neighbours land. Prior to demolition I had it relocated to the front of the property as a builders supply. If memory serves right this was cheaper than disconnection and reconnection.
  2. ragg987

    Cold weather observation - ASHP

    This will depend on sizing more than anything else. An over capacity hp will not struggle, a 'just-right' one will be running at, or over, capacity. Though do not way over size as it will cycle excessively in milder weather. A hp will typically modulate up to 30%. Having lived with one through 3 winters, I suggest you don't overthink this, just make sure the sizing takes into account the heat demand.
  3. ragg987

    ASHP for heating setup

    Should point out - that Auto On/Off setting is based on a 24hr average.
  4. ragg987

    ASHP for heating setup

    I think this is what gives the poor COP, hence I leave it on all time at the same temperature. FYI, here is the custom curve I arrived at by trial-and-error, seems to work well for our low energy build. And an image of an optional setting that means I can be hands-off all year round and the HP takes care of itself.
  5. ragg987

    ASHP for heating setup

    I use the compensation control that is already built into the heat pump, so no extra stuff required other than the separate controller / thermostat. Though it took a but of fiddling to find the best heat curve, the ones pre-programmed were not suitable for our build. The flow varies from about 22C to 30C when below zero outside. I found leaving it on all the time to provide the best COP, when I use the timer it took a big hit. Presumably this is as it runs at a higher temperature differential due to cooler slab.
  6. I believe the rules are changing here, but when we sold our second home, the gain between purchase price and sale price was reduced by the proportion of time we lived in the house as our primary home. Plus two years. The reduced gain was then subject to CGT allowances and rates.
  7. ragg987

    Heating System Boost

    No experience, but it looks like a toy to me. Tiny surface area and small fan dumping 1kW is likely to be noisy in a quiet bedroom. One of the reviews mentions that.
  8. ragg987

    PP Conditions

    Not in my case. I suspect they rely on someone complaining and then comparing it to the PP conditions by exception. Just don't upset your neighbours - they may not have seen the conditions but might complain if your hardcore spills into the road. Cheapest is likely to be tarmac or waste concrete (e.g. surplus from a pour elsewhere) over the appropriate solid core. 'Half-decent' is tricky, your hell could be my heaven. Blockwork tends to be most expensive, though I am sure others will chip in with more expensive options - like gold-plated taps, I did not believe they could exist when I first heard of them!
  9. ragg987

    Warm downstairs but cold upstairs

    We have a similar arrangement. As a precaution I fitted an inline direct heater to bedroom MVHR supply. I think it is 1kW. It is controlled by a thermostat on the landing. So when very cold the inline heater will fire up and works well. I also leave bathroom towel rails on 24 x 7 at the lowest setting, maybe 30C, this works well.
  10. ragg987

    Many ways to set up an ASHP

    Makes little sense to me. Defrost is part of the design, so I can not see why the need avoid it. Direct electric heating gives COP of 1. As long as you stay above this even with defrosting you are saving money.
  11. You might be right. In my mind the grey area is that PP makes the land valuable as a separate property, not as part of the main residence. Not saying I am right, just how I read it.
  12. Re IHT, your parents' estate will only be liable if the total value exceeds £1m. (This full £1m figure will apply from 2020/21). So this may not be a major concern if the £650k house is the major asset. Allowance is £325k per person plus £175k for primary residence, per parent. If I understand it, provided parent 1 passes on the whole estate to parent 2, then parent 2 can benefit from double the allowance when they pass it on. Them gifting you the land might be more troublesome from a CGT perspective. At point of transfer, they will come under jurisdiction of CGT at the open market value of the land. So if the market value is above 2 x £11,700 allowance (assuming they do not use the allowance elsewhere), they become liable for tax. The 7 year rule only applies to IHT - separate to CGT. The land "sale" also brings SDLT into consideration - tax is payable if the value exceeds the £150k nil band. Once you own the land, then you might also come into a CGT liability. I am not clear how this might work, I guess if you move from one main residence to another within the allotted time it should be OK, however in this case you are buying land and not a house so do check on this aspect. Also, how likely that you can build and move in within 18 months of the transfer of the asset - it is possible, but might be tight.
  13. ragg987

    Nuenta Energy Blade - Water Source Heat Pump

    Not my experience at all. Ours can heat to 50C regardless of outside temperature. Sunamp for storage is a separate subject, 50C is too low for the regular PCM, and the 34C PCM is not hot enough for DHW. We use a 300l cylinder, the only downside is that recovery time is slow with our small heat pump.
  14. ragg987

    Which ASHP are set up to cool

    Seems right, I get around 4 when heating and 3 when cooling.