BetaTalk - The Renewable Energy and Low Carbon Heating Podcast
"Nathan is brilliant at making the complicated simple..." Amber Rudd (Secretary of State for Energy and Climate Change 2015-16) BetaTalk is an award winning podcast for Local Authorities, Social Housing Groups, Think Tanks, Government, Journalists, Consultants, Developers, Gas, Oil and Heat Pump engineers and the general public. It is hosted by Nathan Gambling who's family have been involved with heat pump technologies for nearly half a century. "Nathan is one of the UK's clean heat leaders, so I always watch him closely..." Chris Stark (former CEO of the Climate Change Committee and Head of UK Gov. Mission Control) The podcast features guests from the policy world as well as some of the UK's remarkable heating engineers. It discusses challenges and opportunities with decarbonised heating.
Episodes
In this episode of BetaTalk, host Nathan welcomes heat pump expert Graham Hendra to discuss his latest project: an AI-driven platform called Energy Donkey, developed in collaboration with Planet Devices.
Designed to replace frustrating online forums and standard LLMs that mix reliable and poor advice, Energy Donkey leverages a curated repository of verified engineering data and real-time operational metrics. The syst...
In this episode, Nathan speaks with Guild engineers Michael Waring (Bromley Energy) and Liam Knowles (The Heating People) about the daily realities of working on the tools in modern heating engineering. They move past surface-level talk to explore what it actually takes to run and grow a high-standard heating business today.
Key discussion points include:
- The Recruitment Struggle: Why finding installers with...
In this episode I give a brief run down of what is currently happening in the sector. I discuss the recent Installer Show and how the Guild of Master Heat Engineers is attracting lots of attention and how many of the engineers are now offering Air to Air systems to their customers.
I also take a look at the competence person schemes (CPS) and the online boiler ordering business models.
I then take a bit o...
Episode Summary
Guests: Zac Curtis (Innovation Lead for NextGen Home at E.ON) & Chris Bernkopf (CEO of Podero)
How do you scale residential Energy as a Service (EaaS) without upfront capital? E.ON and Podero’s 18-home Midlands pilot demonstrates that combining automated zero-upfront multi-asset orchestration (heat pumps, solar PV, batteries, and EV chargers) into a single 10-year fixed tariff wrapper can ach...
Overview
In this episode, we move beyond the industry’s obsession with nominal appliance ratings to confront a uncomfortable truth: "The Phantom Efficiency." We sit down with Robert Whitney to discuss why the UK heating sector is currently failing its first major test in the transition to electrification. We explore why we continue to chase theoretical efficiency gains on a spec sheet while ignoring the systemi...
Ryan Jude of the Green Finance Institute (GFI) discusses how to mobilise capital for the UK's green home revolution.
Overview
In this episode, Nathan is joined by Ryan Jude, Programme Director at the Green Finance Institute (GFI) and former Cabinet Member for Climate in Westminster. While Nathan admits his expertise lies in the "weeds" of heat pump engineering rather than the world of high finance, the two find common...
The UK heat pump sector is entering a new phase. In this episode, we speak with senior leaders from the newly formed Association, created by merging three major industry bodies (Ground Sorce Heat Pump Association, Heat Pump Federation and Heat Pump Association) into a single, unified voice: The Heat Pump Association UK
We explore why this merger happened, what it means for installers, manufacturers, and homeowners, a...
Nathan chats to his friend Ricky from Thoroughflush about water quality in UK heating systems. Ricky leads the way in helping domestic heating engineers prevent corrosion in their boiler and heat pump wet heating systems.
As well as discussing the VDI 2035 method of keeping heating systems clean they two chat about Ricky's own heat pump installation.
It's a bit similar to Nesta's 'Start at Home' scheme.&nb...
This episode of Betatalk features Will Rivers, associate director of residential decarbonisation at the Carbon Trust and Madeleine Gabriel, Sustainable Futures Mission Director at Nesta.
We discuss the Department of Energy Security and Net Zero's funded Heat Pump Ready Programme which was part of the Net Zero Portfolio (NZIP) and ran from 2021-2025.
The collaboration, evaluation and knowledge of this programme was man...
In this episode of BetaTalk, Nathan sits down with industry veteran Graham Hendra to unpick the complexities and misconceptions currently stalling the UK’s heat pump rollout. While much of the national conversation is bogged down in rigid technical defaults and confusing marketing jargon, this discussion focuses on the practical realities of machine design, the untapped potential of air to air systems, and why...
This episode discusses in lay terms the Position Paper which you can find on the betateach website and you can also download here
I speak to lots of Engineers who have apprentices at college who are not happy with the college system.
The Betateach Position Paper argues for testing a new way of doing things.
Learn more about heat pump heating by following
Nathan on Linkedin, Twitter and Bl...
In this episode of BetaTalk, Nathan welcomes back engineer and coder James Twallin to discuss the technical nuances of the UK’s energy transition. While industry debates are often binary, this conversation focuses on objective data regarding gas infrastructure, the physics of high mass heritage buildings, and the importance of real world boiler monitoring for hydronic heat pump success.
Key Topics Discussed:
Primary Expert: Mick Wall (IT Specialist, University of Sheffield & Founder of Energy Stats UK)
Host: Nathan Gambling (Beta Talk Podcast and Betateach Newsletter)
Core Topics: Heat Loss Accuracy, Weather Compensation vs. Room Influence, Smart Tariffs (Octopus Energy).
Executive Summary (TL;DR)
Standard MCS heat loss calculations often overestimate ventilation losses in older homes by up to 300%. Expert consumer Mick...
In this episode, Nathan sits down with economist Ben Watts, the creator of the real-time energy dashboard at kilowatts.io. They explore the hidden "engine room" of the UK’s electricity system, the high-stakes market where power is traded in 30-minute blocks.
Ben explains why a single line on the map (the B6 Boundary) is costing consumers over £1 billion a year and how technology like heat pumps and EVs ar...
In this episode of BetaTalk, I talk about a subject I am deeply passionate about marketing within the UK heating sector.
The UK has the most competitive heating market in Europe, with the highest boiler sales across the continent. In such a competitive environment, marketing plays an essential role. I reflect on how, at times, marketing messages can move away from fundamental heating science. This is not ...
BetaTalk Podcast Show Notes: Air-to-Air Heat Pump Pioneering with John
In this landmark episode of BetaTalk, the host sits down with John Ewbank to discuss his pioneering and invaluable research into the domestic application of Air-to-Air Heat Pumps (A2A HPs).
This conversation marks a potentially historical inflection point for the UK heating sector, as Ewbank’s practical, data-driven work pushes the boun...
This week on BetaTalk, we're doing something truly special: the FIRST EVER exclusive interview with EDF Heat Pumps about their groundbreaking new "Express" initiative.
EDF's new "Express" initiative is hitting the accelerator, promising faster, smoother heat pump deployments that are directly comparable to the cost of a boiler install.
We sit down with Clay Brown from EDF Heat Pumps behind to unpack:
- What "Ex...
In this episode Nathan chats to two of the Guild Patrons, Rob Nezard from UK Radiators and Nick Baylis from Castrads about the issue of radiators being sold in the UK with overstated power outputs.
Rob and Nick have been working with the Manufacturers Association of Radiators and Convectors (MARC) and now have the help of the Government body: Office for Product Safety and Standards (OPSS), the National Re...
Welcome back to the BetaTalk podcast! I'm thrilled to be joined by Adam Chapman of Heat Geek for a deep dive into the buzz-generating Zero Disrupt initiative. In this episode, Adam shares the full story behind this new heat pump installation program, explaining how it aims to solve critical industry challenges, including improving affordability for consumers and giving homeowners greater choice on system efficiency....
This episode of Betatalk features a detailed examination of a bespoke heat pump heating system designed by engineers within the Guild of Master Heat Engineers. We speak with Mark Denman of Custom Renewables and Alex Hilton, the homeowner and a wonderful guest who provides valuable insight into sustainability.
The engineers are leading heat geeks in the field, and this installation served as an excellent peer-to-peer ...
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