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Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?

Mars · 2025-10-04T10:35:00Z

When I first came across Heat Geek, I was always under the impression (based on their branding, positioning and messaging) that it stood on a platform of quality. Take your time. Do the calculations properly. Understand the property, the heat loss, the emitters. Design a system that works, that lasts, that delivers comfort and efficiency for decades. That philosophy cut through a sector that was plagued by bodged installs, incorrectly sized units and undersized radiators, leaving homeowners with cold rooms, high running costs and a sense of disillusionment. In many ways, Heat Geek helped professionalise an industry that desperately needed it. They raised expectations. They told us that quality mattered more than speed. That was my perception. Which is why their latest initiative, ZeroDisrupt, has left me scratching my head. According to their own launch announcement, this is an AI-powered design system that can make heat pump installs up to 60% cheaper, 50% faster and with far less disruption. To homeowners weary of quotes in the £12,000-£15,000 range (even after the Boiler Upgrade Scheme), it must sound like manna from heaven. Faster, cheaper, less disruptive... who wouldn’t want that? But my question is simple: have we not already seen how this story ends time and time again in the very recent past? We know exactly what happens when you throw heat pumps into homes with minimal radiator upgrades, with flow temperatures cranked up to compensate, with pipework that can’t cope and emitters that can’t deliver. It works beautifully on paper. The numbers look fine. The sales pitch is compelling. But the reality? Cold rooms, spiralling electricity bills, SCOPs that collapse under real-world use and homeowners who regret ever making the switch. That, in turn, fuels the anti-heat pump narrative and sets back public confidence. My concern with ZeroDisrupt is that “less disruption” often translates to no radiator upgrades, no system improvements and designs that lean on higher flow temperatures to make things “work”. That’s a guaranteed route to higher electricity bills. With tariffs unlikely to fall significantly any time soon, what looks like a cheaper install upfront can quickly become a financial haemorrhage... hundreds, even thousands of pounds a year lost to inefficiency. I don't see that as innovation. In my opinion, that’s shifting the cost burden from the installer to the homeowner. It's a creative way to move the bill from capex to opex. The real danger here is that the market is being seduced by volume (and perhaps by the expectations of shareholders). Octopus, British Gas and Aira are already throwing thousands of heat pumps into homes, often at a loss. Their installation arms are haemorrhaging tens of millions of pounds, but because Octopus and British Gas sell energy, they can claw it back later. So what happens next? To survive, the model must shift toward scale with more installs, done faster, for thinner margins. It becomes a numbers game. And we all know who loses in that scenario: the homeowner. They’re left with a “cheap” system that’s supposed to last twenty years but ends up inefficient, underperforming and ultimately a liability. I don’t claim to fully understand the workings of the AI modelling behind ZeroDisrupt. According to Heat Geek’s own video, it has been “trained” on thousands of installs. But no matter how clever the algorithm, AI cannot model the chaos of British housing stock. It cannot know what’s hidden behind the walls of a Victorian terrace, how poorly insulated an Edwardian semi might be or what decades-old cowboy pipework lies beneath floorboards. British homes are messy, idiosyncratic and unpredictable. There are too many variables. AI can assist a designer. It cannot replace one. Even among Heat Geek’s own elite installer network, unease is growing. Several have told me privately they’re uncomfortable with the direction of travel. They joined Heat Geek because of its founding ethos: slow down, design carefully, educate the homeowner, deliver systems that actually work as efficiently as they can. Now they feel the message has flipped on its head. SME installers are already operating on wafer-thin margins. And let’s not gloss over the language now being thrown around. “ZeroDisrupt might work on smaller homes,” I’ve been told by an installer. Might. That is not a word any homeowner wants to hear when committing thousands of pounds to the system that will heat their family home for decades. Might is not acceptable. It must be must. Heat pumps are not disposable tech, and they are fundamentally not cheap. They are the beating heart of a home’s heating system... something expected to perform reliably for 15 to 20 years. When the industry starts using words like might, maybe and probably, what it’s really saying is we’re not sure. And that’s truly terrifying. Experimenting on people's homes that are paying a lot of money for the privilege is not OK! This is where I fear the industry...

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Government Schemes, Regulations, Training, Planning & Organisations

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Mars

(@editor)

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Joined: 6 years ago

Posts: 4894

Topic starter 07/10/2026 10:27 am

Thanks @l8again

We crossed posts. That answers the question about additional equipment, although I’d still be interested in Heat Geek explaining how they check the reliability of the figures used to assess the guarantee, rather than simply how they access them. I’m not suggesting that the absence of a separate meter means anything is wrong, but I think it’s a reasonable question when the measured result is what determines whether a promise has been delivered.

Your concern about changing settings is a fair one, and I can see both sides of it. I wouldn’t expect an installer to stand behind the same efficiency figure regardless of how far somebody departs from the agreed setup, but equally, I wouldn’t want a homeowner feeling that their heating controls had become a minefield where touching the wrong button might undermine their protection. For me, the distinction is between ordinary adjustments to suit life in the house and changes that fundamentally alter how the system was designed to operate, and I’d want the installer to explain where that boundary sits... but that's me.

I’d also ask them to distinguish clearly between the equipment warranty and the efficiency guarantee, rather than leaving you to assume that the same conditions apply to both.

The other thing I’d clarify is your assumption about automatic alerts, because knowing that somebody can look at the system isn’t quite the reassurance of knowing that they are watching for problems. Your approach of following the installer’s advice through the first winter sounds sensible to me... I’d just want their monitoring and support responsibilities to be as clearly understood as your responsibilities as the homeowner.

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JamesPa

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07/10/2026 10:41 am

@editor

I think there is a legitimate discussion here about what its practical to expect. If we can agree, which I hope we can, that a SCOP guarantee is actually (much) more valuable to the householder than a figure for FT, what is it reasonable to expect someone who offers that to provide. And is it really in the customers interest to ask them to fit specialist measurement equipment to every installation particularly when, like Heat Geek, they have data from thousands of installations that are not encumbered with buffer tanks or other problematic design 'features'.

Guaranteeing SCOP is, IMHO, a significant maturing of the market, which really should become universal. In the end its the main figure that matters once the house is warm enough and you are happy with the installation price. However it would be a pity if it does become universal (or more widespread) at the expense of a significant increase in installation cost.

When you buy a motor car they dont offer to monitor mpg, although these days they definitely can and possibly do. The expectation is that you will return it to the dealer if it is underperforming. I would accept that heat pumps are not a direct analogy, but at the same time I would not want to expect things that involve a lot of additional cost.

Answers on a postcard!

Ps this would make a great podcast with two protagonists, a householder and a moderator. Detailed design information Vs guaranteeing the thing the customer actually cares about!

This post was modified 37 minutes ago by JamesPa

This post was modified 28 minutes ago by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.

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