This was never supposed to be like this.
Heat pumps were sold to homeowners as a safe, sensible step forward… cleaner heating, lower running costs and proper consumer protection if something went wrong. Trust the process. Trust the accreditation. Trust the logos. Trust MCS.
And yet, over the years, hundreds of households have been thrown under the bus.
At Renewable Heating Hub, we don’t just see statistics… we see the human fallout. We receive emails and DMs from homeowners who are cold, exhausted and emotionally broken by systems that don’t work as promised. People who did everything right and still ended up trapped in homes that never warm up, staring at electricity bills that trigger dread rather than comfort.
We’ve heard from couples pushed to the brink of divorce. From parents ashamed their children wear hoodies indoors. From people in social housing who feel utterly powerless, stuck with systems they didn’t choose, can’t fix and can’t escape. Some of those messages have bordered on suicidal despair. And that is not something anyone should ever associate with… heating.
My wife and I are not therapists. We’re not equipped to counsel people in deep emotional distress. All we’re trying to do is help people be warm, feel safe in their own homes and stop haemorrhaging money. Yet time and again, homeowners come to us because the system that promised protection has vanished when they needed it most. We do what we can, but time and time again the system fails them.
This is why I’ve coined the term Post-Traumatic Heat Pump Stress Disorder (PTHPSD). Not to trivialise PTSD, but to name a real, repeated pattern of trauma caused by prolonged cold, financial fear and institutional abandonment. For the people living through it, this isn’t theoretical. It’s daily life.
And here’s the thing, this isn’t just about bad installers. It’s about what happens after things go wrong.
Homeowners are told to contact their installer. Then the MCS. Then the consumer code. Then the certification body.
And what actually happens?
They’re bounced. Passed. Deflected. Exhausted.
MCS positions itself as the body that “sets the standards” and “ensures installations are of the highest quality.” But when hundreds of households are living with cold, unstable, expensive systems that are clearly not fit for purpose, those words start to sound hollow.
Because standards that aren’t enforced aren’t standards… they’re marketing.
We’ve repeatedly asked MCS to define what a high-quality heat pump installation actually means in practice. What performance should homeowners expect? What minimum outcomes must be met? Where is the line that says this is acceptable and this is not?
There is no clear answer. No benchmark. No usable definition homeowners can point to and say: this fails the standard.
And that’s the real betrayal.
Without clear, enforceable standards, homeowners can’t argue, they can only complain. And complaints disappear into a maze designed to protect the system, not the people living in cold homes.
Thousands of installs are excellent. Many installers do outstanding work. Heat pumps absolutely can (and do) work brilliantly.
But we cannot keep abandoning the people who were failed.
This issue goes far beyond individual cases. It raises serious questions about installer oversight, consumer protection, regulatory accountability and the government’s responsibility to address the harm already done, especially when public money has funded so many of these systems.
That’s why this video exists.
Not to attack heat pumps.
Not to undermine decarbonisation.
But to say, clearly and unapologetically: you don’t get to sell reassurance and then disappear when lives start falling apart.
If you’ve lived this, the cold nights, the arguments, the anxiety, the feeling that no one is responsible, you’re not alone. And you’re not imagining it.
Watch the video. Share it. And help force a conversation that should have happened years ago.

Such wise words. The grant we received helped. But we genuinely got our heat pump because we wanted to make a difference from an environmental perspective. If we have strayed beyond 18 degrees in the house our bill goes way beyond what we can afford. We heat the main room with a log burner. The rest of the house is sooooo cold. Not what we envisaged. I’m so glad I found this forum!
Sorry to heat that – it should be possible to improve on this situation.
‘The rest of the house cold’ suggests you are not heating the whole house, which will very likely cost quite a lot more than if you were to heat the whole house with the flow temperature correctly adjusted. Done right you should be more comfortable, the whole house should be warm, and you should be paying about the same as with gas/oil. You have to forget almost everything you learned about operating boilers (much of which was wrong even for boilers) and adopt a completely different (and more comfortable) approach.
If you want to start a new thread with a bit of a description of your house and heat pump set up, people on here will doubtless have some suggestions. Also can I suggest you read this introduction to get you used to some of the concepts.
@JamesPa Hi James – thanks so much! That sounds like utopia! When we first had system installed we tried to get everything around 20 degrees but the electricity rocketed. We got it to about 18 degrees and cost was ok but more recently we have gone even lower to try and save money. We are keen to try and get an expert in and get to the bottom of it and try and go again! I posted this earlier: https://renewableheatinghub.co.uk/forums/renewable-heating-grounds-source-heat-pump-gshps/gshp-woes-midland-based-engineer-recommendations/#post-55921 – and thanks again for positive words!
OK, I see from your other post that this is quite an old installation and things have recently changed which suggests a fault. I believe @Mars is looking for an engineer who may be able to help. If not then a fuller description of the symptoms may enable those on this forum to make some suggestions.
@JamesPa Thanks James – and yes yes – am v grateful to the @Mars and to yourself too! We have been at wit’s end! V happy to find this forum.
@johnbroome
As I say I think you probably have a fault which needs fixing. However there may also be an opportunity to tweak how it’s run. The understanding of the best way to run heat pumps has progressed a lot over tge past few years. If you want to tell us a bit more about your setup, house, the rest of tge heating system and how it’s operated there may be some suggestions you could try.
Mars
Excellent article. Love the term Post-Traumatic Heat Pump Stress Disorder (PTHPSD). I also monitor my HP “Like a Patient on Life Support".
I find the timing of my latest video and this post oddly fortuitous (it was never planned like this) because it loosely collides directly with something I said repeatedly throughout 2024/25, especially to homeowners who told me they were having heat pumps installed by Octopus Energy.
At the time, I was pleased to see a large company tackling the low-hanging fruit… simpler properties, straightforward installs, scale. But I also said something that made a few people irritated with me: you don’t really know if a heat pump system is right until it’s been through two winters.
Not the first winter, where excuses are made. Not the commissioning period, where optimism is high. But the second winter, when patterns emerge and reality sets in.
And in the last two to three weeks, I’ve started seeing something that worries me. More and more gripes. More and more “this doesn’t feel right”. More and more comments (both here on the forums and under YouTube videos) about sub-par Octopus Energy installs.
I want to be very clear here: this isn’t a pile-on, and it isn’t an accusation that all Octopus installs are bad. That would be nonsense.
But when complaints start clustering (especially during and after that second-winter mark) it’s a signal worth paying attention to IMO.
Because if poor installs start compounding on top of the already vast number of quietly bad, barely adequate or flat-out bodged systems already out there, we’ve got a much bigger problem than individual failures.
And I’ve had the same uneasy feeling elsewhere… I’ve also been vocal about my unease around Heat Geek ZeroDisrupt.
I didn’t have a good feeling about it when it launched and lately I’ve been hearing from homeowners who are either signing up, considering signing up or being actively contacted, and some of the messages being sent out by Heat Geek should make people pause.
One homeowner shared this message from Heat Geek with me verbatim: “Just to reiterate: having a heat pump installed will unlikely save you money on running costs against a gas boiler. In some cases it may be more expensive to run than a boiler, but I just want to make this clear so you fully understand this.”
I appreciate honesty.
And I appreciate that heat pumps are primarily about decarbonisation, but this is getting silly IMO.
When many of us installed heat pumps (myself included) the promise wasn’t just lower carbon. It was also lower running costs versus oil and gas, when designed and installed properly.
So I have to ask. What exactly is the incentive for a homeowner to spend thousands of pounds on a system that’s more expensive to run, especially if that cost is driven by design shortcuts, upgrade shortcuts or rushed installs?
Because “it’s greener but costs you more forever” is not a compelling proposition for most households.
Let’s be absolutely clear about this, heat pumps should offer everything when done properly: comfort, stability, low running costs, low carbon and future-proofed, electrified homes.
But they offer misery when done badly leading all kinds of stress which I covered in my video.
And my concern, based on what I’m seeing, is that 2026 may be the year where the cracks widen, not close.
I’m not being alarmist. I’m not anti-heat pump. I’m not anti-company. I’m observing direction of travel.
Scale without discipline is dangerous. And normalising “it might cost more to run” because corners were cut is equally dangerous.
So my position hasn’t changed. If you’re getting a heat pump:
You need a system that decarbonises and saves money.
Homeowners must not settle.
Because once a bad system is installed the fight to fix it is long, exhausting, stressful and lonely.
@Mars Hi Mars. I totally agree with your comments.
However, you give a list of all the things which will ensure a good system but what you miss is that the average home owner does not have the skill set to know whether they are being followed or not; they rely on the installer, good or bad.
So either the installers need to be better policed by the organisations they are affiliated to or there is an independant organisation that validates and guarantees a proposal.