I am eager to see when you plan to resume documenting the wildlife.
@JamesRattray
9 ай бұрын
I am missing India and its excellent wildlife parks. We are busy refurbishing the house we purchased last summer, once we have done this, I assure you we will be back to India like a flash. Thank you for enquiring. Best wishes from the UK.
@siddharth-wy2kp
9 ай бұрын
Happy to hear that!@@JamesRattray
@TheMightyWej
7 ай бұрын
This is amazing thank you for making this video and sharing this information, it is really useful. Would you happen to know if there is anything similar for Solar PV in the UK through Open Energy Monitor? Trying to find some real world data for PV arrays on the ground.
@JamesRattray
7 ай бұрын
Open Energy do solar mnitoring too so I suggest you look in the Open Energt monitor forums to see what you can find. Good luck. community.openenergymonitor.org/
@bazcurtis178
12 күн бұрын
I have just added mine, Buntingford. I am hoping it will help others see heat pump work fine in the UK. I am about switch my room target temp to flow target temp. I know my room target temp, the flow target temp is more interesting.
@hughrattray9354
10 күн бұрын
I cannot see yours on the list. I am not aware of targetting flow temperature.
@bazcurtis178
10 күн бұрын
@@hughrattray9354 You have to change the minimum days in the top right to 10. Then I will show up. My graph still shows target room temperature, but I will swap it over the weekend. I know the target room temp so it is a bit pointless. The target flow temp I assume is set by the weather curve and would be good to see how it changes over the winter months. Unfortunately the app won't let you have both and you can't explain it in the graph. Some people use room and other flow. The only way to tell is, you would assume people don't set their room temps to 30c+ :).
@hughrattray9354
10 күн бұрын
@@bazcurtis178 Interesting - I can see your system now. Why does it only show up with minimum of 10 days? I will follow with interest.
@bazcurtis178
10 күн бұрын
@@hughrattray9354 My system only went live at the end of July and I only plugged in the ESPAltherma about two weeks ago
@DMFPERFORMANCE
9 ай бұрын
My heat pump is running at COP 5.5-5.8 dwarfs all of them lol.
@JamesRattray
9 ай бұрын
Please tell us more. How have you done this? I install mine in January, not to late to make changes. I would love to learn what you have done.
@hughrattray9354
9 ай бұрын
Fantastic. It would be really interesting to see how your heat pump is configured. Is that data from an independent monitor ot from the heat pump itself?
@DMFPERFORMANCE
9 ай бұрын
@@JamesRattray Hi I have a small 4 bed detached house with a heat loss of 2.77kw at -3. I use k2 rads and an Aerotherm + pump (5kw). The unit is set at 27-35oC max flow temp on a 0.4 heat curve. I heat a 250L cylinder once per day to 65oC off peak (1230-0430) on eco mode and achieve a cop of 3 for DHW. The unit is installed 390mm in front of my conservatory with open clear air paths to the side top and front of the pump. I would say having an A rated house with low heat loss and double over spec K2 radiators allow for a very low flow temperature and hence cop. I would love to join the heat pump data system online but for the cost I can buy more Lithiums batteries. (Currently use 15 kwh of lithium storage and a 6.8kwp solar setup) I also calculate cop by taking 29kw heat and dividing by the electrical energy 5kw to give 5.8. Others use (29+5/5) which gives 6.8 which I don't agree with.
@JamesRattray
9 ай бұрын
@@DMFPERFORMANCE thank you. Very interesting your point about very low flow temperatures and having good sized K2 Radiators. When mine is installed next month I will bear all this in mind. I don't think you can have too large radiators, within reason, in auxiliary rooms. Do you constantly heat your living areas?
@DMFPERFORMANCE
9 ай бұрын
@JamesRattray My system uses constantly setback temp of 16oC. Which achieves a warmish 18-19oC in the hall way where the senso comfort is hung. I'm glad I choose the Vaillant ASHP over the Ecodan. The senso net gateway and senso app make the whole system a dream to use definitely worth the extra 200 quid.
@patrickwheeler2646
9 ай бұрын
Hey I can see my house from up here!
@ndudman8
9 ай бұрын
Fantastic info and video... is there anything simular for air2air ? I know they are more differcult to measure in/out and not so common in uk as people don't want/need air-con.
@JamesRattray
9 ай бұрын
It is an interesting comment. I know our supplier of the Daikin we installed in 2009 used to tell me air to air heat pumps were excellent for large spaces such as halls and churches. They give a better Coefficient of Performance to air to water heat pumps. I suppose the complications is ducting within a house, to the different rooms. It is something I know very little about. If you know more please share it with us.
@BenIsInSweden
9 ай бұрын
I haven't seen anything for home users to monitor A2A - I would love to be able to monitor mine, but I think it's a lot more complex. I think the availability of R290 in A2W has narrowed the gap in COP performance between the two, as R290 isn't allowed for A2A.
@hughrattray9354
9 ай бұрын
@@BenIsInSweden Interesting point, I hadn't considered that
@KavanOBrien
9 ай бұрын
Is there any information about what pump name of manufacturer or name of pump ? Lots of the units are made up with plates, copper, fans, etc, but the actual pump is the most important item in my opinion, looking at the heat pump units overall there’s many components within the units so if there is a rubbish pump inside the unit you are going to have many problems , obviously a cost has to be put together when designing the heat pump units and unfortunately manufacturers tend to buy pumps with cost in mind rather than which is the correct pump , the problems you could have is mind blowing if they have used the incorrect pump due to cost only , if there is a list of pumps used somewhere by each manufacturer then I could tell people which is good or bad , which is well manufactured. Which one is less troublesome. It will help people who have no knowledge of pumps and would help them to choose more wisely.
@JamesRattray
9 ай бұрын
Hi Kavan, I am Hugh's brother, the name at the top of this channel. Hugh has installed a Valliant which he is very pleased with. I am looking at a Mitsubishi. We have both gone to the manufacturers direct and they have both supplied us a huge amount of data on their heat pumps. It is interesting that we had to ask them specifically for the data instead of having it available for everyone as open source. Having said that it is refreshing to see how open they are when asked the question. With your pump knowledge it would help all of us if you researched and did a presentation on the pumps used. One of the great things about social media, is we can do this. Thank you for your comments.
@KavanOBrien
9 ай бұрын
@@JamesRattray Good evening Hugh, I was just curious of what pump is used within the unit not the heat pump units themselves, having worked twenty years in the pump industry I have probably worked on every pump in the market place, using pumps to build boosters sets, oil industry pumps , building pressure units that too many variables to list, so I know basically nearly every pump how they are manufactured,what issues they have , what would be the most efficient again the list is endless , so I was just curious what pumps they are using within the unit and could could advise which are good bad or indifferent .
@JamesRattray
9 ай бұрын
@@KavanOBrien How can you find that out. Would the manuals give you a clue, or would you have to open each heat pump to physically look?
@GlynHudson
9 ай бұрын
@@KavanOBrien Vaillant use Wilo circulator pumps inside their heat pumps. The circulator pump just circulates the water around the system, i's the compressor and refrigerator circuit which actually does the work of 'pumping' heat from the outside air into the house. I guess the term heat pump is a bit misleading, since there's no pump directly involved in the heat generation. Quite a few heat pumps don't even contain a circulator pump, the installer would then have to fit a suitable circulator pump inside the house.
@KavanOBrien
9 ай бұрын
@@GlynHudson Really they don’t have a pump inside the units on some , I didn’t know that , will pumps are not good though they obviously went for price and not quality in regards to that pump.
@nicky_nike
9 ай бұрын
If so good, why did we install gas boilers?
@hughrattray9354
9 ай бұрын
It is all to do with progressing to better solutions. Once humans sat around open fires for warmth and then we progressed to coal and from there to gas heating. Modern heat pumps are much better than gas heating. They provide plenty of heat, they cost less to run and they are much better for the environment, particularly helping to stop the devastation that is occurring through climate change.
@nicky_nike
9 ай бұрын
@@hughrattray9354 Climate change is a nonsense. What about all the fossil fuels used to generate the electricity? I hold an HND in Mech Eng. and we studied heat pumps and their design and operation. Their technology is the same as in 1973 when I obtained my HND. They are a very simple device really. They go back a long way but were used for large scale commercial operation. So they have been around long enough to have replaced gas decades ago.
@hughrattray9354
9 ай бұрын
@@nicky_nike Heat pumps have been around for ages, as it is basically refrigeration technology but they have improved in efficiency dramatically in recent years with better refrigerants and inverters. The UK grid is now 43% renewable (wind, solar, hydro). This proportion typically goes up at night. The UK has committed to treble renewables by 2030 so there will be less and less fossil fuels as we go forward. Even if it was all gas powered it would be better to use a heat pump than burn the gas yourself. A Combined cycle gas facility is 60% efficient - so 1 Kwh gas gives 0.6 Kwh electricity. If a heat pump is used it would turn that into 2.4Kwh of heat (COP of 4). A gas boiler would tune 1Kwh of gas into 0.85Kw of heat. I am amazed that any well informed person believes climate change is not real.
@nicky_nike
9 ай бұрын
@@hughrattray9354 Ask Patrick Moore, the founder of GREEN Piece his thoughts on climate change. He's well informed. The crap we have been told over 50 years. It was all going to happen usually over 10 years. All lies, not one prediction has happened. Gridwatch shows 43% wind now. I've seen it at 3%. You forget electricity is 4 times the price of gas. If we had fracked and managed our power supply properly, and stopped wasting billions and billions on so called green energy, I would not have had to set my thermostat to 15°C. Treble renewables? So some nights at 9%. How much is trebling going to cost? How much CO2 produced manufacturing this non cost effective nonsense, for wind turbines that last 20 years?
@MrMajorduck
9 ай бұрын
This data is so skewed: Only 69 installs on that monitor. Those who have this monitor installed will be by installers or users who care and are knowlable about heat pumps.
@BenIsInSweden
9 ай бұрын
So? You aren't getting any usable data from those that state their bills are £700 per month, so it's always going to be guesswork with them. The data shows what's possible with the right installer, and as always the advice is to get someone to do the install that knows about proper heating system design. The install count on there has grown quite a lot over the past 6 months or so, and will continue to do so.
@JamesRattray
9 ай бұрын
Please enlarge on what you are saying. What is the alternative you suggest? How do we get the data that you would accept?
@hughrattray9354
9 ай бұрын
I think your point is fair and that is the reason we put the video out there. If you get a good installer and follow some of the guidance that I give in the video anyone can have a high performing heat pump. On the face of it my house was not a good candidate for a heat pump, with poor insulation and microbore pipes, but has excellent performance. I would suggest you try and get a Heat Geek installer and test them with the points I raise in the video.
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