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Recycled refrigerant and Energy Performance Declarations are discussed in this episode alongside the wider discussion around whole life carbon and the UK Net Zero Carbon Buildings Standard.Nathan's guests are:Ryan Philp, the Business Development Manager at Daikin Ellie Burkill, Energy Sustainability Consultant at XCO2Sara Godinho, Associate at XCO2To hear what Daikin are doing with recycled refrigerant skip to 1 hour 2 mins... a link is provided in the chapters tabSupport the show

The BetaTalk podcast speaks to friends at Kensa about their approach to using heat pump technology for domestic heating.Nathan and Wouter Thijssen, MD at Kensa Contracts, explain 5th generation heat networks (known as ambient loop) and how they are different to other types of district heating.For more info about the  check out the links belowITV NEWS Financial TimesBBCSupport the show

Fantastic guests and a fantastic episode which digs deep into the Energy Performance Certificate. Nathan is joined by Madhuban Kumar, CEO of Carbon Laces; Stuart Fairlie, MD of Elmhurst Energy and Marcus Shepheard from the Climate Change Committee  Support the show

Lots of frustration among gas engineers. Do we value the work they have been doing for so long? They are an incredibly important sector of the heating community as we will be relying on them for the transition.Support the show

This is the 100th episode so a big thank you to all the listeners and all those who have taken part.BIG THANK YOU TO MyEnergi who are this season's sponsorIt features  European policy expert Louise Sunderland from the RAP UK policy and innovation expert Guy Newy from Energy Systems Catapult (past sponsor of the podcast) AND expert heating engineer  Welsy Hort from West Hampstead Plumbing and Heating. Wesly is one of the renowned BetaTalk #heatarchitects - leading heating engineers who are helping other heating engineers learn. This episode is fantastic and discusses the recent heat pump installs Wesley did for both Guy and Louise. Both Guy and Nathan have a passion for post install monitoring and Nathan is involved in a BEIS funded Heat Pump Ready project which has a focus on monitoring.  Support the show

Mark from the architectural practice LEAP discusses with Nathan airtightness, ventilation, thermal comfort and passivhaus.Questions arise such as should more loft insulation be put in and how windows ideally should be fitted.A few papers are mentioned and the links can be found here:Passivhaus Secrets (Free Documentary Case Studies)Passivhaus TrainingThermal Bypass RisksSupport the show

Measuring Heat pump system design with Brendon from HeacolLink to slides for the test can be found hereTHE TEST RIGBrendon discusses how he first designed the test rig with Ulster University  for testing the heat pump he had built which is specifically adapted for UK climate, the UK's building stock and how the homes in the UK are commonly heated e.g. a combi boiler.When RHI was first introduced, it required heat pumps to have costly certification and sadly Brendon's heat pump had to be put on the back burner... after all, Brendon is extremely busy installing heat pumps for people and has been putting heat pumps in for many years. (Note, if you are an investor in innovation you'd do well to contact Brendon to discuss this heat pump)The test rig uses a 500L thermal store to simulate the internal of a property "it's got inertia, it's got thermal capacity and it's got buffer " A plate heat exchanger connecting the thermal store to the heat pump simulates a radiator system which can have temps and flow rates changed. Brendon describes how this set up is able to run different testing than the excellent Energy House at Salford University and benefit from quick responses to different heating stratagies and scenarios.  TESTING SYSTEM DESIGN  testing a heat pump system with 3rd party controls and buffer tank testing a heat pump system with weather compensation and buffer tank testing a heat pump system with weather compensation and no buffer tank e.g. open zone or what has been called direct in the test which can be found here The test simulated a house with an 11.5kW heat load.With the first test the heat pump had to run at 50 degree Celsius flow to maintain an internal temp of 21 degrees.In the second test the flow temp dropped to 45d.The final test, with open zone system, no buffer and controlled with manufactures wether compensation controls only required a flow temp coming from the heat pump of 35 degrees CSupport the show

We chat to Szymon from Urban Plumbers who is now installing heat pumps to get a glimpse into that journey. Szymon has a great YouTube channel which you can find hereSupport the show

Nathan chats with Tarik Bellahcene from the European Heat Pump Association about KeymarkSupport the show

We spoke with Graeme Fox from BESA about the first world ventilate day. You can watch live also their webinar which will also be recorded12:00pm GMT - Tuesday 8 November 2022Join our panel of experts as they discuss how good ventilation can improve health and wellbeing as well as protect buildings. We will share top ventilation tips and practical solutions to implement your home, school or workplace. They answer the key questions such as:  What is ventilation?  What is the right solution for my building?  How does it improve sleep/health/productivity?  How do I know if I have a ventilation problem?  Can ventilation really reduce the spread of flu, colds, and other diseases?  Energy costs mean I don't want to open my windows in winter – what options do I have?  BESA are supporting the global awareness campaign to promote the critical role building ventilation plays in improving health, well-being, sleep and productivity alongside scientists, academics, engineering bodies and environmental activists. As well as showcasing the range of ventilation solutions available to building owners and occupiers, #WorldVentil8Day will recognise the skilled people who implement the measures and strategies used to make buildings healthier and safer – highlighting the need for training and recruiting more skilled people to take on this growing global task.  You can find the link to the webinar here Support the show

We chat to Phil Jones from Alpha about boilers and their need to be working better with proper control. We also mention the hybrid offering from Alpha where for aprox. £3100 a home owner can have a new boiler which is connected to a 4kW fan coil unit outside.Enjoy the  episode and thanks for listening Support the show

Fantastic episode with Barry who runs Renewable Heat up in Scotland. We discuss his heat pump journey as well as his work with the plumbing and heating association Snipef.We discuss lots such as MCS, the NIBE PVT system, sizing heat pumps and the new service which www.heatpimpsurvey.com provides which measures rather than calculates heat loss.We also mention how some of the old solid wall buildings are some of Barry's best performing systems.Defrost cycles are discussed and how a heat pump can become more efficient the colder it gets outside due to lack of moisture in the air.Support the show

Nathan chats to the MD of EOGB about a UK first - a domestic modulating oil boiler.The boiler uses open therm to modulate the flame and will output different flow temps to the radiators or other heating emitters. Nathan starts the episode with a little pre-amble about the importance of flow temps constantly changing to match the demand of the property. Enjoy!Support the show

We are joined by Richard Burrows from Mid Wales Plumbing and Heating Supplies who is an expert on heating control strategy.Richard talks about the types of modulation - load compensation and weather compensation and how all boilers should be controlled this way.To understand modulation I have written an article with a funny analogy hereWith advice about turning boiler temperatures down for combination boilers 'combis' Richard chats about heating systems using cylinders and how the outdated practice of piping up S and Y plans is scuppering  efficiency. Great episode thisSupport the show

Nathan chats with his friend Dave who runs and owns Condensate Pro and now Primary Pro.Primary Pro is a polyethylene product which comes pre painted making it easier to use than class O insulation. He has also developed Bond & Seal which can be applied all weathers unlike the contact adhesive which is used for Class O.The conversation is a useful resource for people wanting to understand the types of pipe insulation available and how to install it correctly, especially for heat pump pipework which is outsideTopics  weather resistance and weather proofing are discussed along with UV protection. polyethylene and Class O Nitrate Rubber Foam Closed cell insulation Clipping insulation VISIT A HEAT PUMP WITH NESTA check out this new initiative Acknowledgements:Thank you to all the podcast listeners.Thanks to this seasons sponsor Farnell UK Thanks to the European Heat Pump Association for their supportSupport the show

Nathan is a big supporter of diversity within the heating industry and this special episode is the first ever BetaTalk podcast takeover e.g. Nathan is not in it. The episode has been hosted by three remarkable women who are involved in  plumbing and heating: Sovey, Leah and Rhiannon. They interviewed one of Nathan's friends Andy who has been involved in the industry for quite some time. A fun packed episode with all kinds of interesting stuffSupport the show

Nathan has a great chat with Daniel Newport from the Tony Blair Institute for Climate and one of his regular renewable heating engineers James from Elite Services Group based in Hull.Daniel previously held a senior position at BEIS and was part of the team that introduced the target of 600,000 heat pumps by 2028.All sorts of interesting stuff in this episode.  Support the show

Nathan hosted a live podcast to discuss heat pumps at the industry's favourite show. On the guest panel were Heat Architects Steve Webster and Si Posket along with the podcasts expert guest on commercial refrigeration Lisa-JayneSeason 6 of BetaTalk is being sponsored by FarnellWe also like to thank the European Heat Pump Association and Key Mark in helping to promote life long learning within the sectorSupport the show

Ofgem have been collecting performance data on heat pump installs and Nathan chats to Collin Meek from RB&M who has analysed the data.The report summary can be found here Learn what COP (coefficient of performance) SCOP and SPF (seasonal performance factor) all mean as well as their limitations. Are heat pumps in the UK performing well? Find out in this great episode. A big thanks to season 6 sponsors FarnellAlso a big thanks to Tado, The European Heat Pump Association and Key Mark who are helping to support life long learning in the sectorSupport the show

Can a home have no energy bills? Yes. We chat to Nigel from Ilke Homes who have just partnered with Octopus Energy for an exciting project where the occupant is expected to pay no energy bills.The homes will use heat pumps, lots of solar PV and batteries. Hear how they work on this episode. This episode is accompanied by a special patron episode where we go more into the detail of these Octopus and Ilke zero energy bill homesSupport the show