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@geoffaries 4 күн бұрын
Weather compensation is the best way to control All heating systems. Many cost comparisons are made betwèn heat pumps with WC and gas boilers without WC, which is not a fair comparison. Gas boilers can happily run with a flow temperature of 25 deg. The only thing that interest me and clients is the RoI, what do you expect this system to acheive?
@jamespyke-b8w 21 сағат бұрын
True, all comparisons are with all singing all dancing heat pumps as opposed to high temperature gas boiler with a on/off thermostat
@markfernandes2467 8 күн бұрын
How do you decide between a Mono and a split? What factors are invloved with that choice?
@greenhomeheatingltd 8 күн бұрын
Hi, we don’t have f gas qualifications so all of our installs are mono units. I believe split can be better for larger primary runs.
@JimWilkinson-el2hp 8 күн бұрын
What about the main fuse upgrade to 80 or 100 amps,does every install need this.
@greenhomeheatingltd 8 күн бұрын
Hi, That depends on what the maximum demand in the home is. Before the installation we calculate or test this and notify the power grid of the planned install. Most of the time it’s ok but they have came out to upgrade the fuse on a few occasions.
@XpertechLtd 14 күн бұрын
Nice job, being an installer myself I mostly liked the acceptance of the mistake and exposing it on video. I am trying Vaillant Arotherm 5kw split now and am excited to see how it will perform 😃 Thank you for sharing your project.
@markfernandes2467 8 күн бұрын
Hi, what factors made you go with a split instead of a Monoblock?
@85parrot 16 күн бұрын
this is great - i'm having the same unit also installed on a upstairs wall and have been a bit concerned about noise/vibration. these videos are a great way to allay concerns, it's so difficult to actually find one to look at in person!
@RichardCroston Ай бұрын
Great stuff! How long did the installation part of this system take? (Site work, plumbing and electrical)
@greenhomeheatingltd 8 күн бұрын
Hi, this install took 3 days to complete.
@RichardCroston Ай бұрын
Great stuff! How long did the installation part of this system take? (Site work, plumbing and electrical)
@greenhomeheatingltd Ай бұрын
Hi Richard. Thanks for the comment. This one was complete in 3 days.
@RichardCroston Ай бұрын
Great stuff! How long did the installation part of this system take? (Site work, plumbing and electrical)
@TomBray-LowCarbonLifestyle 2 ай бұрын
Great work - I have some friends in Durham looking for a quote, so I will put them in touch with you Tom
@greenhomeheatingltd 2 ай бұрын
Hi, thank you for the recommendation. If you pass them our details I will be happy to help them. Mark
@jfinnie78 2 ай бұрын
Not convinced by the wall mounting. I have a couple of (initially) very quiet Daikin air to air units mostly used for cooling. They started off unnoticeable. One is now 12 years old or so and emits a notable thrum that comes through the mount and into the wall (there is only so much those rubber cushions will dampen, and they compress over time). If I had the time again I wouldn't be wall mounting these devices. In this case with the additional access issues for servicing / repair, it really makes you wonder if this is the right solution.
@raydavison2972 3 ай бұрын
That looks like a pretty neat installation but I hate the external pipework, surely it could have been fitted within the cavity wall? One question I have is why is there a need for an internet connection? Another way for officialdom to reach into our lives? I also have an issue with the siting position of the heat pump itself. Possibly not your choice, but if I were the home owner I would have moved the shed forward and had the heat pump against the back wall. As it is he has lost all flexibility over what he does at that corner of the house. He can't swap the shed out for a bigger one if needed in the future or if he did away with the shed, the heat pump will be standing in the middle like an afterthought!
@greenhomeheatingltd 3 ай бұрын
Thank you. We have done the external pipework in trunking before but we find this method gives better protection. We let the customer decide which way they prefer it doing though. He also chose the location as to what suited his plans for the garden best and also gave the best airflow around the unit. The internet connection allows us to remotely fine tune the system by dialling in the weather curve and also gives the customer access to an app to let them see how the system is performing.
@raydavison2972 3 ай бұрын
@@greenhomeheatingltd Thanks for the reply. I thought the position may not have been your choice but I think the owner may regret hos choice later. I guess it can be changed if needed if at a cost. And maybe I am too much of a conspiracy theorist regarding the internet connection but I know legislation has recently been passed to allow the government to insist on remote access to 'connected' white goods in the future (Fridges, washing machines) in kitchens to verify that they are eco friendly and control when they can be operated
@pt6423 3 ай бұрын
It's a pity you are so far away in County Durham otherwise I would ask you to do my install. Greetings from South Bucks. Keep up the good work.
@greenhomeheatingltd 3 ай бұрын
Thank you, I’m pleased you enjoyed the video. It’s a little outside of our area unfortunately. Hopefully you manage to find a good local installer.
@richardlewis5316 3 ай бұрын
No mention of the cost of the installation and the annual running cost compared with the original system. If the cost of the HP installation is about £15K the payback in running costs could be more than 10 years
@greenhomeheatingltd 3 ай бұрын
Hi Richard, sorry I should have added that in. The total cost was just over £5000 to the customer. A similar system with Vaillant boiler and unvented cylinder would have been £6000+ for the same standard equipment and controls. The heat pump has been running at a combined efficiency of 450% so is already saving him on running costs as well.
@richardlewis5316 3 ай бұрын
Thanks for such a quick response. I must assume that the 'cost to the customer' took into account government grants of about £7500 so the true cost of the installation would be about £12000. It is this cost which has to be used to show savings which should include the cost of electricity to run the HP. For future installations the subsidies/grants/tax credits will not be available. I currently heat my 3 bed detached house and hot water for about £1500 pa with a combi boiler so about 8 years of heating and hot water just to cover the HP installation excluding the running cost.
@greenhomeheatingltd 3 ай бұрын
@@richardlewis5316 yes that’s correct that’s the cost after the grant. I agree once the grants are no longer around it’s going to be expensive to install, the main expense is in the initial system set up. Heat pumps should be cheap to swap like for like after that point. If your boiler is perfectly fine it’s definitely going to be a cost, but if it’s an older boiler like this one that initial expense was going to have to be paid anyway for a new system so this customer actually saved money getting a heat pump over upgrading their system. Heat pumps generally cost more than combi to combi installations but system conversions and full installations can work out cheaper (with the grant and no vat, while it lasts)
@markfernandes2467 8 күн бұрын
@@greenhomeheatingltd The customer had already over sixed his Rads & i guess pipe to them was all 22 mm. If not for that, New Rads & Pipework or UFH would add quite a bit. Although VAT relief would be on all of it if done at the same time.
@greenhomeheatingltd 8 күн бұрын
@@markfernandes2467all the pipework was existing 22mm primaries splitting down to 15mm. You don’t always have to repipe and can sometimes even get away with 10mm plastic depending on the heat needed to feed the room. It’s all down to correct heat loss and calculations
@JamesJenks-rg5ml 3 ай бұрын
Very tidy job, the switch info on the distance is a good one to learn
@michaelwinkley2302 3 ай бұрын
You lost me at oversizing the heat pump.
@greenhomeheatingltd 3 ай бұрын
Could you please explain what you mean? The heat pump is a 5kw unit for a house with 4.75kw heat loss. And the design temperature of 45 degrees is what was achievable without the customer changing all of his radiators and costing him extra money. This system will easily be over 400% efficient over the year.
@michaelwinkley2302 3 ай бұрын
The Vaillant might have a 5kW label on it but at that design temperature it will output 5.8kW as per its technical specifications. The 3.5kW version would be quite marginal at that design temperature, probably needing more radiator upgrades. By only looking at Vaillant you're making a choice of either oversizing by 25% or struggle to meet peak heating at design temperature. There has to be a heat pump out there that better fits the design parameters than one that will likely low power cycle quite often.
@greenhomeheatingltd 3 ай бұрын
@@michaelwinkley2302 yes this unit will output around 5.8kw at design temp. The customer really wanted a Vaillant unit though and this was the best fit for the job. The 3.5 unit only gives around 4.2kw at the temperatures we need but the it is essentially a restricted 5kw anyway so you might as well upsize to have the faster hot water recovery and the same minimum outputs. What makes would you recommend for in between sizes? I’m always happy to look at other options but the Vaillant has been such a good unit we tend to stick with it where ever possible.
@michaelwinkley2302 3 ай бұрын
It's hard to recommend a specific brand because not enough manufacturers actually list their technical specifications with enough detail to make an informed choice. A quick search suggested that Baxi list their specs to the same standard as Vaillant, but I've not looked to see whether they'd have a heat pump that would meet this particular scenario. Most seem to only publish A7W35 despite MSC and NBHC guidance being A-3W45 design temperature. Some do seem to list A-5W45 maximum and nominal (which seems odd). Honestly, the manufacturers probably need to make it easier for your industry, since most installers aren't as informed as you are.
@greenhomeheatingltd 3 ай бұрын
@@michaelwinkley2302 I agree. The size on the badge can be a bit confusing. I think posting the lower level of modulation would be really good as well. There are a few brands out there that may do a heat pump closer to the maximum output needed for this scenario but I know the Vaillant would still manage to outperform it over the year with the better technology and controls. I have heard brands like NIBE are good but it’s getting the time to do the training to fully understand and optimise them.
@johnc4323 3 ай бұрын
Did customer give a reference to what regulation states 1.2m max distance for isolator?
@user-dc8eb6xc5r 3 ай бұрын
Great video mate fair play to owning up on your mistake 👊🏻
@keithkennedy2409 3 ай бұрын
What is the distance that the unit can do on a defrost from outdoor unit mono block to inside water cylinder I was getting a nibe heat pump and was told max distance was 12 meters that run looks a lot longer so I made need a split type ?
@greenhomeheatingltd 3 ай бұрын
Hi, the Vaillant can be around 20m for the primary pipework.
@keithkennedy2409 3 ай бұрын
Thanks for the reply
@7dayplumbingservices195 3 ай бұрын
Very nice job , no buffer no glycol so super efficient? I am new to heat pumps, only qualified few weeks ago , and going on the Vaillant course in May . The MCS reg seen quite admin heavy for a small 2plumbers business..I would like some advice on pricing.
@geoffmansfield2668 3 ай бұрын
Where (or with whom) did you do your training?
@greenhomeheatingltd 3 ай бұрын
Hi Geoff, our main training for heat pumps was via the Heat Geek course. I have been on lots of other heat pump courses but they are pretty rubbish unfortunately.
@geoffmansfield2668 3 ай бұрын
@@greenhomeheatingltd so ‘Heat Geek’ is good, most others are poor?
@greenhomeheatingltd 3 ай бұрын
@@geoffmansfield2668 the others I have attended have been pretty poor. I have hear of a few other low temp design courses that are supposed to be good such as Kimbo Betty but I have not been on it myself.
@glisterservices 3 ай бұрын
Great video mate! Loved the honesty with the isolator outside! Glad i watched and learnt from it for my install! Great work 🫶
@greenhomeheatingltd 3 ай бұрын
Glad you liked it 👌
@markfernandes2467 8 күн бұрын
Wow, you're in the comments. Yup, this was a good video. Very different style from your own. I like both. I actually sent an email to the person who deals with your SM a few months back & asked if you could do a job for me. It was to renovate a whole bathroom, create an en suite, & first, swap out a heat only unvented set up for a combi or a heat pump. (If HP, then UFH too) I'm not sure you do HPs though but I'd probably end up going with a Combi anyway, less hassle. Quite a lot to do here and a lot of creativity & skill needed, so thought it would suit you.
@BritishAnts 3 ай бұрын
Back ground music is a bit full on and drowns you out! Turn it down by 50% if you really have to have that annoying rubbish playing! Good info tho!
@andrewtaylor641 3 ай бұрын
How come you had to fit piping on the outside? Was it not possible tonuse the current boiler piping to the cylinder?
@greenhomeheatingltd 3 ай бұрын
Hi, the heat pump has been located on the other side of the house to where the old boiler was so needed a new route to the cylinder cupboard.
@normanboyes4983 3 ай бұрын
Nice install.👍
@granthutchinson5937 3 ай бұрын
Did the house already have 15mm pipes to the radiators?
@greenhomeheatingltd 3 ай бұрын
Yes this house was all 22mm and 15mm pipework to radiators already. If you have 10mm copper pipework this can work but the correct calculations need to be done. 10mm plastic is more difficult.
@TheRonskiman 3 ай бұрын
@@greenhomeheatingltd Nice tidy install. When we renovated our house back in 2004 we used a mixture of John Guest plastic and copper. The heating tee's off in two different directions at the boiler, the original house is fed via 22mm plastic, this feeds a zoned manifold, and then individual 15mm plastic to each radiator, the other half of the house is done in copper. As we have 15mm plastic, but each rad has its own feed and return do you think this will be an issue due to the inserts? I can't see how this is different to 10mm microbore, as the ID of the inserts is 9mm. I realise the zoning will need to go though.
@granthutchinson5937 3 ай бұрын
@greenhomeheatingltd Thanks, and yes, I have 10mm copper drops to all the radiators.
@arnovdmeer 3 ай бұрын
Nice installation, could show how you optimized the radiator valves to create the correct flow to heat the different types of rooms with the ideal temperature?
@greenhomeheatingltd 3 ай бұрын
Thanks. We usually remove most of the TRV’s from radiators to make sure the majority of the system remains open to get the correct flow rates. We then use testo temperature clamps to check the DT is correct across all of the radiators and make sure it’s all balanced nicely. If a radiator is slightly oversized we might leave a trv on to help limit the room temp in that room.
@David-bl1bt 3 ай бұрын
It looks a really neat and tidy job, well done. Top marks for owning up to a mistake, others would have kept this quiet, so kudos for that. In interesting and informative video with lots useful info. I didnt notice a buffer im wondering did you fit one? The two pressure vessels are a bit of a blot on the landscape, luckily hidden in the cupboard. Im surprised vaillant dont have an unvented with one built-in. Could the heatrae megaflow be used instead or does it have to be a vaillant brand? Can existing controls be integrated into the vaillant system? I have 'Wunda' underfloor heating on the ground floor so i would prefer to use their app contyol that i am familiar with. Im toying between the vaillant and a Daikin, he latter being considerably cheaper....any thoughts or experience with daikin heat pumps?
@greenhomeheatingltd 3 ай бұрын
Hello, Thanks for the comment and glad you enjoyed the video. We try not to install buffers at all if possible. Sometimes a volumiser is needed if the system does not meet minimum volumes needed but this one was fine. We find going open loop will give you much better efficiencies so that would mean removing the blending valve and individual control of the downstairs underfloor system. Then just control it from Vaillant’s main control which I would definitely recommend paying the extra for over daikin. I have the same set up in my own house. I good installer should be able to work out the output of the floor then size the upstairs radiators to suite so it all runs at the same temperature. I hope this helps.
@craigmcgregor5463 3 ай бұрын
Interesting to watch. Thanks 🎉❤
@flatcap6263 3 ай бұрын
Any chance of information on how the system deals with preventing the outside pipes freezing in winter
@greenhomeheatingltd 3 ай бұрын
Hello, We use antifreeze valves on our installations and fit them at the lowest point. If there was ever a power cut during cold weather conditions it would open and drain the system of water to prevent it from freezing.
@T22ngs 2 ай бұрын
Did you have to use antifreeze inhibitor?
@greenhomeheatingltd 2 ай бұрын
@@T22ngs we used antifreeze valves on this job not glycol.
@markfernandes2467 8 күн бұрын
@@greenhomeheatingltd You went with no buffer on this system right? When would you use one?
@colingoode3702 3 ай бұрын
A tidy installation that with good level of attention to detail. It's pity you are at the other end of the country or we may have asked you for a quote when our time comes. Personally, for better aesthetics, I would have wanted the external pipework in trunking or, in a dummy rainwater pipe. I would also have moved the shed & relocated the HP to hide it more, but that's just me because I don't want to see or hear a big grey box in my garden. I have loads of space down the side of my house but it's only 1m wide & probably not enough to meet the airflow clearances needed so alternative locations are going to be an issue for me. Could that new HW tank have gone in the loft? I'm just thinking about our house where the existing airing cupboard is quite small & has a dumpy 36" x 18" IMI Hercules tank &, my wife would not want to loose the linen storage above it. I appreciate that the loft trap door would have to be big enough for the new tank to go through but I assume the existing platform in the loft (for the now redundant gravity cold water & F&E tanks) could take the weight of the new HW tank without any extra cost or need for structural surveys & the like. As an alternative to a HW tank, I'm thinking about a SunAmp thermal battery. Nice & compact with more HW capacity than we have now that I could charge from the Heat Pump, solar diverter, overnight cheap rate electric or a combo of all three. Any thoughts would be appreciated.
@bjjcjc 3 ай бұрын
How big was the pipework to the customers radiators in this install? A major roadblock for ourselves re going down the heat pump route is that we have 10mm microbore from a manifold to radiators so would involve alot of upheaval ripping that out
@greenhomeheatingltd 3 ай бұрын
Hi, The pipework on this one was all 15 and 22mm through the heating system. Do you have 10mm copper pipework. Depending on what size radiators it is supplying sometimes you can get away with 10mm but the installer would need to do the calculations. We recently installed a system that has 10mm coming off a manifold to all radiators and it’s working extremely well.
@UsernameTm 3 ай бұрын
@@greenhomeheatingltdcould you share some more videos on the surveying and heatloss calc part of the design and also how to get the correct flow and volumes in the system? Cheers
@snecklifter 3 ай бұрын
Great video. Nice one for openly talking about the isolator location being incorrect. Every day is a school day indeed and when you share stuff like this we all learn. One minor bit of feedback would be to perhaps do less talking to the camera and instead point it at the stuff you are talking about. No offence but most of us will be more interested in footage of the kit etc. Footage of the support bracket you talked about at the rear of the pump would be good too. Thanks for uploading this.
@greenhomeheatingltd 3 ай бұрын
Glad you enjoyed the video and thanks for the feedback. I’ll try to show a lot more of the equipment and even the Vaillant app in the next one 👌
@B0jangle5 3 ай бұрын
Great video and a very neat install, even the electronics. Was the water running into the hot water tank at 12:45? I have a similar cupboard near my bed which I'm thinking of using for a hot water cylinder but concerned about noise of water running through the pipework?
@greenhomeheatingltd 3 ай бұрын
Thank you. At the time I was explaining the cylinder cupboard the hot water cylinder was charging.. There shouldn’t really be any noise at all coming from the cylinder cupboard apart from the valve moving positions once the hot water is satisfied.
@UpsideDownFork 3 ай бұрын
Seems an unusual place to site the pump? I'm sure there's a reason but would be good to explain in the video.
@greenhomeheatingltd 3 ай бұрын
@@UpsideDownForkthe location was where the customer requested it to be as its least intrusive on the garden. Usually we keep them against a wall but if we had we wouldn’t have been able to get enough airflow without moving the shed.
@UpsideDownFork 3 ай бұрын
@@greenhomeheatingltd Thanks for the quick reply. The customer is always right I guess! Very nice looking installation!
@B0jangle5 3 ай бұрын
@@greenhomeheatingltd Ok, good to know. I think my concern comes from a small house with a massive boiler. Will need to find some people with a valiant and have a listen :)
@may2may277 4 ай бұрын
Do be hinest heat pump is a rip off end of
@greenhomeheatingltd 4 ай бұрын
Hi, the majority of our installs have been getting over 400% efficiency. Certainly not a rip off but we do understand some poor installations can cost people a lot of money.
@danielknights1505 4 ай бұрын
My only problem is I haven’t got room for a water cylinder, so I’d need either a custom made one put it in a bedroom or something then build a cupboard around it
@poufdaddy326 4 ай бұрын
How did you manage to get the heat pump up to that location? Is there any advice when putting them over 2m high?
@greenhomeheatingltd 4 ай бұрын
Hi, we used a builders genie for lifting lintels in place for this one.
@B0jangle5 4 ай бұрын
I've heard that older properties shouldn't have cavities filled as it allows moisture to bridge. Have you seen any problems with them?
@greenhomeheatingltd 4 ай бұрын
Hi, Yes insulating cavities on older properties can be a bit of a minefield and you need to be very careful the house is suitable for it. We don’t offer insulation services ourselves but would always recommend speaking to an expert.
@rowanballinger3690 4 ай бұрын
Can you go through the mcs registration part in more detail and the planning part
@user-fb6mk1im7c 4 ай бұрын
Great video Mark, thanks for sharing!
@giuseppe072000 5 ай бұрын
3D model is possible to be used for thermal modeling /simulation? If you add a 10 cm of insulation what efficiency it will be ?
@giuseppe072000 5 ай бұрын
What accuracy have this method/ solution? Some real details are used .... something .is measured.?
@honeyfungus4774 5 ай бұрын
Would have liked to see what disruption there was in the house and also how know long it took to do.
@poufdaddy326 5 ай бұрын
What is the app called?
@greenhomeheatingltd 5 ай бұрын
Hi, this is Heat Geeks own survey tool that they have developed for their own installations.
@jacbisgood2221 6 ай бұрын
Nice install! Did you add any additional volume to avoid short cycling when the annex isn't being heated?
@greenhomeheatingltd 6 ай бұрын
Thank you. We didn’t need to add extra volume as the amount of radiators in the main house was more than enough.
@thomasschafer7268 6 ай бұрын
😅😅 eine Wärmepumpe kann in die letzte ranzige Bude. Die Effizienz hängt leider immer noch vom Dämmstandard ab. Also saniert erst energerisch!!!!👍🇩🇪
@UpsideDownFork 6 ай бұрын
That looks like a big improvement!
@greenhomeheatingltd 6 ай бұрын
Thanks. The customer is extremely happy and saving loads on their bills.
@UpsideDownFork 6 ай бұрын
@@greenhomeheatingltdkeep up the great work!
@Depat 4 ай бұрын
@@greenhomeheatingltddepends what system you’re replacing so be honest. Replacing a gas boiler is more expensive bills, FACT!
@greenhomeheatingltd 4 ай бұрын
@@Depat this isn’t true. As long as you can get the efficiency of the heat pump to be over 350% a heat pump would work out cheaper if the boiler was controlled in the same way. If you are someone with a large heat loss in your home and only like to use the heating for a few hours morning and night then the heat pump would most likely be more expensive to run. People need to consider their control strategy more when opting for a heat pump.
@8skellerns 7 ай бұрын
Still liking the idea of air to air systems. These heat pumps seems a nightmare to plan for, and once installed, your screwed! I have a combi boiler, and the old hot water cylinder i had has now gone, and the small bedroom extended into the cupboard it was in!
@greenhomeheatingltd 7 ай бұрын
Air to air can be really good options for some homes. They don’t solve the hot water problem though. I know what you mean about storage space. Houses have moved away from a “airing cupboard” and we struggle for space at times.
@chrisskeen3350 8 ай бұрын
Great video, thanks for making it. What is the dirver in homeowners wanting heat pumps? Is it all £ with the bus grant of just wanting to be greener?
@greenhomeheatingltd 8 ай бұрын
Glad you enjoyed it. With the bus grant and the fact the install is vat free it can make it cheaper to get a heat pump when installing new systems or doing system conversions. A well designed system should be cheaper on running costs as well but that depends on the cost difference between gas/electric. It is also one of the best ways you can cut your carbon footprint.
@malcolmstead272 8 ай бұрын
Rather large storage cylinder, most homes will have problems having a suitable location.
@jason99uk 9 ай бұрын
Good thing to note, the boiler upgrade scheme voucher now contributes £7500 as of 23rd October!