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An Installers Guide to GSHP
- 1. Introduction to Kensa Heat Pumps The Only UK Manufacturer of a Complete Range of Ground Source Heat Pumps
- 3. Kensa Engineering Ltd UK Designers and Manufacturers of Heat Pumps
- 10. Kensa’s Complete Product Range Kensa compact heat pump single and twin compressor, plantroom heat pumps, slinkies, antifreeze, manifolds, expansion vessels, buffer vessels, and cylinders.
- 14. Oil Prices Oil has risen by 60%+ in the last 2yrs
- 19. The RHI Phase 1 Tariffs - Commercial Eligible Project Types: Public Buildings Commercial Installation Schools Industrial Processes Hospitals Holiday Lets Library’s B&B’s Village Halls Hotels Community Centre Swimming Pools (commercial) Offices Communal Heating
- 24. MCS Accreditation John Barker-Brown
- 25. What is MCS? The MCS (Microgeneration Certification Scheme) certificates microgeneration technologies used to produce electricity and heat from renewable sources. The MCS is also linked to financial incentives which include the Renewable Heat Incentive. It is designed to provide a level of protection and assurance to consumers as well as a sign of quality MCS Accreditation
- 26. MIS 3005 – Heat Pumps Requirements for contractors undertaking the supply, design, installation, set to work commissioning and handover of microgeneration heat pump systems MCS Accreditation
- 27. Why do I need MCS Accreditation for my project? For GSHPs, both the technology and the installer must be MCS certificated to be eligible for grants and incentives; In this rapidly growing industry, installers and products that carry the MCS Mark are likely to be seen as the preferred option in the market place. MCS is linked The Renewable Heat Incentive and also the Green Deal.
- 29. MIS 3005 v3 – Heat Pumps Requirement Comment Heat Loss Calculations Room by room losses by BS EN 12381 or equivalent Heat Pump Sizing 100% sizing DHW Sizing to BS6700 Emitter Design Including a room by room performance assessment for the heat emitters (star rating) and how this can be improved Ground Heat Exchanger Design Using appropriate software or charts within MIS 3005 System Performance Running hours and costs based on kW/h per year. Commissioning
- 30. How Can Kensa Help? Requirement Comment Heat Loss Calculations Room by room losses by BS EN 12381 or equivalent Heat Pump Sizing 100% sizing DHW Sizing to BS6700 Emitter Design Including a room by room performance assessment for the heat emitters (star rating) and how this can be improved Ground Heat Exchanger Design Using appropriate software or charts within MIS 3005 System Performance Running hours and costs based on kW/h per year. Commissioning
- 31. The Kensa MCS Umbrella Scheme Kensa are an accredited MCS installer and manufacture MCS accredited products. Providing installers a FREE of charge commissioning with a Kensa Technical Support Specialist based in the Kensa Commercial Office. This level of support through the installation, provides the installer and the client with MCS accreditation for the installation. Eligible for RHI and Grant Funding
- 32. Project Qualification How do we identify a feasible GSHP project? Built 1990 or later Located off the mains gas grid Has underfloor heating Has oversized radiators Is quite well insulated Has sufficient land to lay slinkies/ground arrays Does the client have the budget?
- 34. Sizing – New Build Internal area – Ground Floor Total Internal area = 260m2 Heat load = 260m² x 40W p/m² (0.4) (If New Build) =10400W =10.4Kw
- 37. Internal area – Ground Floor Total Internal Floor Area = 260m2 Sizing – Retrofit Heat load = 260m² x 60W p/m² (0.6) (If retrofit) =15600W =15.6Kw
- 38. Ideal sizing using SAP – Line 39! SAP Report - Line 39a (January Heat Transfer Coefficient) Project Location is Exeter Heat Loss Coefficient x Temperature Difference -3°C (Min) to 21°C (Max) = 24°C rise 602.23 x 24 = 14453W
- 41. Space Heating and DHW Provided by GSHP with Underfloor Heating and Radiators
- 48. Boreholes Sizing
- 55. Project Responsibilities Responsibility Project Member Obtain plans and key project details from the client and pass to Plumbcenter Installer Initial sizing and quotation Kensa Quote to the Installer Plumbcenter Supply of heat pump Kensa Project Survey (Heat loss calcs) Installer or Tonos Installation of Heat Pump and Pipework Installer Digging of trenches for slinkies/ground arrays Ground worker Drilling of borehole Ground Source SW
- 56. Project Handling – How will we work together? Enquiry made to Plumbcenter from installer Kensa contacts installer directly to discuss project Plumb Center quote installer Installer places order with Plumb Center Installer deals directly with Kensa during installation and commissioning
- 62. “‘ By far the most helpful company from a technical point of view. Kensa's understanding of our needs have been excellent and they communicate ideas and new products regularly with us.” **** “ Great supplier - realistic and well designed product that is made for the UK Market.” **** “ We have been installing Kensa heat pumps for some time and have always had an exceptional level of service from a very knowledgeable team.” Kensa Engineering recently secured the prestigious Green Manufacturer of the Year Award at the Corgi Awards 2009. Kensa achieved the highest average score, beating 20 other manufacturers including Worcester Bosch, Nibe, Vaillant, Baxi, and Viessmann. Green Manufacturer of the Year 2009
- 63. Kensa Rated #1 Manufacturer In July 2011, Kensa were rated the “best buy” in The Guardian, based on a report carried out by EthicalConsumer.org
- 64. Target Projects Domestic or Commercial New Build Waterside Developments Commercial Projects such as schools, offices, retail outlets etc. Barn conversions Holiday lets, holiday parks especially with swimming pools Retrofit properties off the gas grid, well insulated with land
Editor's Notes
- Welcome to Kensa oftec day – the purpose is to discuss the rising cost of oil and the benefits of the impending RHI grant funding on retrofit projects Oftec installer day – is your customer base fed up with the price of oil Introduction to the kensa team and kit – Guy founder member and designer Layout of the room and kit – demo unit – manifold etc Introduction to plumbcenters association Introduction to roger boreholes and craig Tonos We deal direct but you will get a better deal from plumbcenter – more on that later Anyone with sales leads see Kensa after Lot to get through – all details of the presentation will be available later
- We manufacture we don’t install – installers required We are local 2500 installs – so we have the expertise Doing this for 11 years – so have the experience Full accreditation – as manufacturers Kensa built our own test rig, tested and approved by BBA – this was because the only UK test house was booked
- Mount Wellington site is on a 22 acre disused mine The production facility is heated via a closed loop system dropped into the water course of the mine shaft Kensa main building heated via slinky ground array’s
- Few different speakers today The rising price of oil shouldn’t cost you business Quick look a product range and the opperunity RHI – DB MCS – JBB Tea Break 15mins – gonna show short film regarding pressure testing ground arrays Kensa have picked a typical project and were going to size a heat pump, look at the house design and some of the hurdles involved The look at the ground requirements Price the complete project and compare it with Oil running costs Marketing – CH overview on everything available to you as a business ????
- Smallest output of the market No immersion heaters
- Niche market products – Kensa understands the UK grid system – designed for the UK market 24kW single phase All units come with integral load and groundside pumps insitu Unit come on a chassis and connections are push fit under the unit Sealed refridgerant circuit so no special a/c qaulifications
- Imported models much smaller output restricted by lack of 3 phase applications
- HT units to 60°C MWT
- Plantroom units come without circulation pumps
- We also supply cylinders and buffer tanks, tested and compatible Kensa don’t supply interconnecting pipework between the manifold and the heat pump Competitors don’t always provide the full kit
- The whole business is scalable – the production unit is designed to handle 5000 units per annum With plenty of room for additional space Last year we built just over 400 units
- Just over 4000 GSHP fitted last year We have a decent market share But not the marketing budget of our competitors
- Prices in some rural areas last xmas nearly topped £1 How many of you have clients fed up with the price of oil Smaller the oil tank the more refills per annum Heat pump requires no annual maintenance or servicing – it requires no combustion air Condensing boilers only lasting upto 8/10 years Recession – outputs down Hands of the madman Intro dave & RHI
- I’m going to provide a brief overview of the current state of play regarding the RHI. As background the government has targeted that 12% of the the UK’s heating is to be provided by renewable sources by 2020. This is going to take a significant swing in the market as the current figure is more like 1.4%. The RHI is to follow a similar pattern to the FIT scheme which has already successfully seen a 15 fold increase in an that market over last year. The RHI is designed to provide an improved return on investment by paying an annual tariff based on the annual carbon saving of the installation.
- £860M has been allocated over the first four years of the scheme which represents a significant increase in funding compared to the previously funding made available through the LCBP. Following the original consultation in February 2010 the RHI has now been split into two phases. Phase 1 for commercial installations where the full details of the scheme have been announced and Phase 2 for domestic where unfortunately the full details are yet to be made available. In either case it has been made clear that any heat pump installation that meets the qualifying criteria after July 15 th 2009 will retrospectively qualify for the payments, although payments will not be back dated.
- DECC pushed through the commercial side of the scheme as in terms of hitting the number for increase in renewable a significant chunk of this can be done in the commercial sector. Anything from a pub to a public library, a school to a power plant will be eligible under the RHI to install technologies like heat pumps. Communal installations, i.e a single heat pump heating multiple units will also qualify as a commercial installation.
- The tariff level will be set based on the size of the heating installation up to 100kW Peak installed it will be 4.5p/kWh 3.2p/kWh over this. Once in the scheme the level of support an installation will receive is fixed and adjusted annually with inflation. For commercial installation the tariffs will be paid for 20 years to eligible technologies that have installed since 15th July 2009 with payments being made for each kWh of renewable heat which is produced. For commercial installation the payment will be based on the metered out put of the heat pump system, Class 2 heat meters have been specified as the standard type and Kensa can provide additional information on Metering requirements if necessary. As the installation is meted Bi-vialent systems will be accepted so if a system requires a supplementary heat source this will be accepted as the proportion of heat from the heat pump can be measured. The application process opens From Monday and will be administered vie the Ofgem website. This site also offers full details of the eligibility criteria and requirements. As the commercial tariff is based on metered out put projects with the highest load/ the most running hours will receive the most generous payments, swimming pools for holiday parks would be an ideal example.
- Assumptions Oil at 65p/L efficiency 85% Heat pump COP of 3 electricity cost of 10p/unit based on a commercial tariff We’re assuming a 40kW heat pump installed including bore holes – the oil cost includes a 60kW boiler and commercial oil tank. Total lifetime cost including running cost and servicing cost – assumption is based on a flat rate of energy cost and not the anticipated increase in both, although oil will increase more quickly than electricity. On these assumptions the heat pump pays back in 8 years just based on the running cost saving, adding in the RHI the system pays for it’s self in side 5 years.
- Due to the delay in working out how to calculate domestic energy usage, how to set the tariff and also decide what projects & technologies will & wont qualify there has been a significant delay in rolling out the domestic side of the scheme, so DECC announce the RHPP back in the summer to try to help stimulate some interest in the renewable industry until they could work out how they were going to do it. The Renewable Heat Incentive Premium Payment will subsidise the cost of installing ground source heat pumps. People who have installed the kit under the Premium Payment, will still be eligible for tariff support through the RHI providing they meet the eligibility criteria of the full RHI scheme. As from next year, the Renewable Heat Incentive will expand to cover the domestic sector, so the RHPP is a short-term scheme making one-off payments of £1250 for ground source heat pumps. For ground source heat pumps, householders without gas central heating in England, Scotland and Wales can apply (in other words those who are not connected to the gas grid and currently rely on fuels such as oil, liquid gas, solid fuel or electricity for their heating).
- I wish we had a full picture on the RHI, all we really know is the tariff payments are due to start in October 2012 in line with the green deal. Installation back to July 2009 will qualify providing they meet eligibility criteria, unfortunately we don't know what the criteria are as yet. However the final consultation phase is due to start later this year, this should contain a better indication of the revised tariff levels and eligibility criteria, hopefully these tariffs will then be confirmed by April for the close of the RHPP. At this point we are assuming that the tariff itself will be reduced from the 7p/kWh detailed in the original consultation – we are expecting ground source heat pumps to come in at more like 5p/kWh and like the RHPP it is possible that main gas connected areas will be excluded for the scheme, this is the reason for the reduction in tariff as the pay back calculations are now being based on oil rather than mains gas as the counterfactual. The other interesting unknow is how the energy use is going to be calculated, it’s unlikey that domestic installation will be metered, although, bi-vailent systems, ie installation where a back up boiler is maintained, may be need to be metered to allow them to measure the proportion of heat developed by the renewable device. It’s possible that the payment could be based on the details from a SAP calculation, as part of the calculation estimated the energy requirement of the building. However, the SAP contains a number of assumptions, and could also be subject to tampering where a friendly SAP assessor could tweak up the values to increase the payments. The final option would be a deeming table similar to the one included within the original consultation, this would provide an estimated kWh requirement dependant on construction, floor area and heating type, Kensa have been advising with DECC directly on this however we are yet to find out if they are going to use this methodology, but it would certainly simplify the process and make it easier to provide customers with an estimate of the Rhi payment available before the project even starts. Another element is eligibility it is likely that some criteria will be placed on the customer to ensure all energy saving measures possible are fitted to the building before the heat pump is installed. The final qualifying criteria is that up to 45kW the product has to be MCS accredited which naturally Kensa provide a full range, in addition you also have to have an MCS certified installation. My colleague John will now elaborate on the MCS compliance side. But before we move on are there any questions on the RHI?
- Heat loss calculations - need to be adjusted for local conditions and height above sea level. Heat pump sizing - 100% sizing, i.e. The heat pump has to meet 100% of the space heating load without supplementary heating, i.e. Without in-built immersion heaters. Gone are the days of supplying a heat pump which is 9kW with a 3kW immersion for a 12kW heating load. Idea is to protect the client from large unexpected electricity bills due to the immersion heater kicking in. Output also needs to be adjusted for ground and emitter temperature (more pronounced on air source, than ground source) DHW – BS6700 states minimum hot water storage rates. Emitter Design – Provides a heat pump system efficiency which depends on the type and size of emitters fitted. This translates to a star rating and the client needs to be informed how this can be improved. This is also room by room, with the worse room chosen for sizing the heat pump. Ground Heat Exchanger Design – this is calculated using information such as thermal conductivity of the ground, location in the country and number of run hours. Either appropriate software or charts (within MIS 3005) are used. System Performance – an estimate of running costs for the heat pump. Commissioning – successful commissioning of the unit and handover with the installation added to the MCS install base.
- What we need from you is Room by room heat losses ideally calculated according to BS EN 12381 or CIBSE Guide A. If you have a problem with this we can put you in touch with Craig from Timoleon. There is a cost to your client for this however we will refund this is a order for a Kensa heat pump follows. Even if the calculations show a heat pump is not suitable for the property the report can be used for the sizing of other technologies such as bio-mass, etc. It is also expected that they could be used to allow access to the green deal, if required.
- Kensa units are designed for an easy install, with full installation instructions provided and a dedicated Technical support specialist who will guide you through the install and ensure that the system is installed according to MCS. Dedicated commissioning engineer who will guide you through the commissioning taking various readings from the unit which ensures that the install is correct.
- New builds– however we are going to look at the easiest first (lowest hanging fruit) Qualify the lead – budget price it – pricing structure
- Building well insulated
- If project new build 12kW unit
- Oftec engineers – must have clients who are fed up with the rising price of oil Have annual service agreements Are rural properties with land twice the size of the house Boiler is at the end of it’s working life Restricted by single phase Cavity wall and additional roof insulation will result in lower running temperatures and associated savings For MCS plans or site survey
- Generic sizing before SAP has been supplied Kensa have undertaken thermal modelling on houses built post 1990 an its about 60w/m – however each property is different for example House has to have adhered to the whole house insulation method, in other words, the most amount of insulation that the property can get Cavities wall insulation Loft Solid walls re un-insulated tho However this enables Kensa to set a budget price for you an the client
- This is the sap – info that Craig will suuply Energy performance certificate and mandatory part of building regulations Based on monitoring SAPs for the last 12 months 40w/m is minimum building regulations Ok so now we’ve got the building heat losses it’s 15kW
- So what about the running temperatures It’s quite possible that the rads are oversized – boilers quick heat up times and not wanting undersize The walls and loft may have been insulated (grants available) All the rads will need sizing Multiply by 0.8 to accrue for the reduced temperature input based on stelrad compacts or use craig services But better still ape an heat pump turn down the temp to 55°C – perhaps lots of your clients have done this anyway to keep the fuels bills down Will Highlight areas of issues
- Best installation time is when weather is warmer March onwards – plan for when oil has nearly run out Get rid of system crap Heat pumps work DHW priority Ground array tails left next to the heat pump 3 days work??
- Typical heat pump schematic – other than the buffer tank it’s standard sealed system plumbing Can do without buffer vessel if system losses 25% of it’s TRV’s Control is via a twin channel programmer
- Selling price to the customer
- Lots of different ways to get the heat exchange required Boreholes Slinky ground arrays Straight pipe ground arrays – heat pump size has a direct reflection of the amount pipe required Others heat mediums are: open loop and pond mats
- Slinky Lengths 30m (200m) 40m (250m) 50m (300m) Sized for worst case ground scenario (Chalk) Slinkies & manifolds prefabricated Unroll above ground no need to go in trenches Only needs blinding if rocky – use sand to dust, it’s a lot cheaper
- The more the client can do on the externals the cheaper it will be
- Same project but with boreholes Driller to provide header works
- The more the client can do on the externals the cheaper it will be
- Sap also provides estimated annual energy consumption for cost comparison
- RHI tariff TBC Anal benefit running cost saving + RHI
- Possible future finance options like PV If oil was a £1- £2023 + £1509 (RHI) – total £3532 – reduces pay back to 6 years for ground arrays and 8.2 years for boreholes Boiler £4K labour etc depending on whether the oil tank needs changing Less cost of boiler change Slinkies – 16% 6 years. Boreholes – 10% 9 years
- This is how it will work Kensa provide detailed to plumb centre Plumbcenter to provide competitive price. Better than direct
- Further technical training £100 Any further information
- The purpose of this seminar was to make you fully aware of the opportunity open to you if you were to become involved in ground source heat pump installation. I am now going to quickly run through a quick overview of Kensa and what we have achieved since the company was launched in 1999.
- Installer map slide. As you know, Kensa Heat Pumps are the only UK manufacturer of GSHPs and we have been supporting installers across the UK for the past 11 years. We have supplied and commissioned in excess of 2500 heat pumps and have already developed strong relationships with installers who were experienced with heat pump installation and installers who were completely new to the business. We have manufactured heat pumps for a wide range of project sectors not just domestic – some of which include garden centres, swimming pools, hotels, schools – it doesn’t matter what the building is, if its reasonably well insulated, does not have a mains gas connection and is built on a well sized plot, chances are a ground source heat pump would be a compelling alternative for the client, to oil or LPG. The map you see here is accessible from the website. From this map, you can download case studies which relate to projects located on the map. Also downloadable from this installations map are Customer feedback forms which have been completed by happy Kensa clients – they contain a lot of really positive comments. Also, where you see the green referral pin point, this marks the location of satisfied clients who are happy to act as referrals for your potential customers. A lot of these referrals are based in the South West - Perhaps you have a customer who needs some reassurance that heat pumps do work or you may have a client who wants to discuss how it feels living with a heat pump compared to an oil boiler – in which case we have customers on hand ready to speak to your clients and reassure them.
- Website Slide The website – Please try and use the website as much as you can. It’s definitely one of our strengths as a heat pump manufacturer – its not just pretty pictures, its full of really useful technical information. It’s basically a database of all of our product and application literature. User manuals, installation guides, factsheets and case studies can be downloaded from the information library. We also provide an RHI update page so as soon as the domestic tariffs are announced, they will be uploaded to the site. Please use the website as much as you can as I think you will find this very useful. Also, we are in the process of producing a web based installer training programme and short installer training movies. These are due to be launched before the end of November, so please complete your feedback form and ensure we have your email address, so we can contact you when these are ready and issue you with free access to these videos. For those of you who have websites, if you would liek to add a link from your website to Kensa, please feel free to do so. I cna also provide you with images, literature and any other ma
- Awards Slide Kensa have won a number of awards over the last 4 years. The Ashden Awards for Sustainable Energy, gained us recognition in addressing fuel poverty, cutting carbon emissions and making renewable energy more accessible. Kensa also won the 2009 Housing Excellence award for Product of the Year for our Compact Domestic range and the benefits that this product range can bring to social housing schemes. Kensa were the chosen supplier for the largest roll out social housing scheme, where 240 units were supplied to New Linx Housing Association in Lincolnshire as part of a major refurbishment project which effected a large chunk of their existing housing stock.
- Other awards included the 2009 Corgi Awards, where Kensa were chosen as Green Manufacturer of the year. This award was really important for us as this was awarded to Kensa based on what the installers think. The award was judged by corgi installers, who were asked to rank companies out of 5 based on the ease of installation, the quality of the project, the reliability, value for money and technical support. We scored the highest rankings in each category, compared to other suppliers such as Worcester Bosch, Nibe, Vaillant, Baxi and Veissman. Here you can see a few of the comments left by those installers who voted.
- Earlier this year, Kensa were also awarded the “Best Buy” badge by the Ethical Consumer Buyers Guide. This was published in the Guardian Newspaper and Kensa were compared again to suppliers such as Nibe, Vaillant, Danfoss to name a few. This was an important award and provides the consumer with confidence in our business ethics. We care about where are heat pumps are installed and what happens to them when they leave our factory.
- Target Projects Slide I hope we have come close to meeting this purpose of this seminar and I hope you now see the opportunity in installing heat pumps. If we have done our job property – you will see the opportunity and the next step for you should be to find the projects. To recap what Dave and Paul have already touched on, the kind of projects we should spend our time targeting are: Domestic or commercial new build –anything new build. Waterside developments – Pond mats are essentially slinkies in water. In Rivers, lakes, ponds – water like the ground stores solar energy – this can be used to generate the se and the experience to do this. Commercial Projects such as schools, offices, retail outlets etc – The Commercial RHI tariff is ready to be paid to your clients – a heat pump is a very attractive solution to their high energy prices. Holiday lets – and holiday parks – especially with swimming pools. Projects off the mains gas grid, fairly well instated with land! Do any of your existing clients on oil meet these criteria? We have covered a lot and we don’t expect you to remember everything! As you leave the seminar, I will be stood at the door handing out CDs which contain this powerpoint presentation and all of our factsheets, manuals, case studies and our pricelists. Also included on the CD is a PowerPoint presentation which we deliver to those installers who book onto our installer training courses. Within this PPT presentation are slides which cover things in a much more in depth level so please take the time to have a look at the contents of this CD or refer to this should you find a project where ground source could be considered. Please don’t forget we are here to support you so if there is anything I can provide you with please give me a shout. I’m now going to pass you back to Paul for a quick summary
- Niche market 24kW and 17kW HT units Whether a thirst quench or gravity fed Doing this for 11 years Expertise – supplied 100kW for Broxbourne , 300kW cotswold water park New Linxs – all drilled