For all the attention given to heat pump targets, installation numbers and the technologies that might eventually replace our boilers, the decision facing an ordinary homeowner remains considerably more personal: whether to entrust the comfort of their home, a substantial amount of money and years of future running costs to people whose expertise they may have very little means of assessing. From the industry’s perspective, an installation might represent another completed project; from the household’s perspective, it is the heating their children will wake up to, the hot water they will depend on and the electricity bill they will have to pay, which makes confidence in the people delivering the system every bit as important as confidence in the equipment itself.
That distinction stayed with me after my conversation with architect and Mitsubishi Electric ambassador George Clarke and Rob McGaughey, Head of Smart Cities and Heat at ScottishPower, because beneath the discussion about design, installation and connected technology was a more fundamental question about responsibility. “I think trust is absolutely everything,” George said, recalling the pressure a double-glazing salesman had once put on his parents, and although the technology has changed, the concern will feel familiar to anyone who has tried to distinguish sound advice from a persuasive sales pitch. A homeowner being asked to make a significant change should be able to understand why it is right for them, what its limitations might be and who will remain accountable once the installation team has left.
George Clarke’s observation that “every homeowner is unique, and every home is unique” ought to be treated as a practical design principle, with consequences for how a property is surveyed, how a system is specified and how its expected performance is explained. A household should be able to understand why particular radiators need replacing, why a certain heat pump has been selected and what assumptions have been made about the building’s insulation and heating demand, without feeling that a reasonable question is an unwelcome challenge to the installer’s authority. Heat-loss calculations inevitably involve some uncertainty, especially in older buildings with poorly documented construction or alterations, as Energy Saving Trust’s detailed guidance acknowledges, but that makes transparency more valuable: where assessments differ, the homeowner deserves an explanation of the assumptions behind them.
The same care is needed when discussing improvements to the building itself, because sensible advice about insulation can easily become an intimidating list of expenses if nobody distinguishes between work that is necessary for the proposed system, work that would improve its performance and work that could reasonably be undertaken later. Older homes can accommodate heat pumps, provided the design responds properly to their needs, and Energy Saving Trust’s guidance is clear that a home’s age does not, by itself, determine its suitability. What matters to the person paying is having a proportionate plan that respects both the building and the household budget, rather than being left with the impression that low-carbon heating is accessible only after an expensive, comprehensive renovation.
Running costs deserve equally careful treatment, particularly when impressive efficiency claims are allowed to stand in for an explanation of what the household might actually spend. The relationship between electricity prices, seasonal performance, heating demand and the fuel being replaced means that a technically efficient system does not automatically produce the same financial outcome in every home, a distinction explored in Energy Saving Trust’s heat pump guide. If an estimate depends on a particular tariff, radiator upgrades or changes to how the heating is operated, those assumptions should be visible before the decision is made, because discovering the conditions attached to a promise after spending the money is a remarkably effective way of destroying confidence.
These are the questions that give the conversation with George and Rob its wider significance, extending beyond whether heat pumps work to whether the industry can offer homeowners a service that makes the transition understandable, manageable and properly supported.
One of the most useful points Rob raised concerned the handover, when an installer may be finishing a demanding job while the homeowner is tired of the disruption and keen to have the house back to themselves, making it an unusually poor moment to expect somebody to absorb everything they need to know about an unfamiliar heating system. A demonstration and a manual are important, but there is a strong case for treating a planned follow-up during the first heating season as part of the installation service, when the household has had time to live with the controls, experience colder weather and discover which questions actually matter to them. Whether the rooms are reaching the intended temperatures, whether the settings suit the household and whether anyone understands how to make a sensible adjustment are all questions better answered through experience than through a hurried explanation beside a controller.
That continuing relationship also needs a clear point of responsibility, because a homeowner whose heating is underperforming should not have to become the intermediary between an installer, a manufacturer, a controls provider and an energy supplier before somebody agrees to investigate. There may be several organisations involved in delivering a modern system, but the household needs a comprehensible route to help, with somebody responsible for progressing the problem rather than simply identifying another company that might own part of it. When George said, “You’ve got to perform. You’ve got to deliver,” I took it as a challenge to the whole customer experience, including the less glamorous work of answering questions, correcting mistakes and returning when the original settings need attention.
As homes acquire solar panels, batteries, electric vehicles and increasingly sophisticated controls, this responsibility will become more important, since the appeal of an intelligent system depends partly on how well it continues to serve a household when circumstances change. A homeowner should be able to ask what happens if they switch energy supplier, lose their internet connection or no longer have access to a particular app, and receive an answer that gives them confidence in the system’s continued usefulness. Connected technology offers considerable opportunities, but its value should be measured through the everyday experience of the people using it, including those who have no interest in monitoring dashboards or optimising their lives around a collection of devices.
None of this diminishes the work of good installers; it makes their contribution more visible, because careful surveying, thoughtful design, commissioning and patient aftercare are skilled services that take time and deserve recognition. George Clarke described the need to “give them what’s right for them and for their home”, which seems a far more durable basis for public confidence than another campaign asking people to believe in the technology. The most persuasive case for a heat pump will often be the neighbour whose house is comfortable, whose costs were explained honestly and whose installer remained available when help was needed, because that is evidence a household can recognise and relate to its own circumstances.
If the industry wants low-carbon heating to become an ordinary, trusted part of British life, it needs to take ownership of the uncertainty that currently falls too heavily on the person buying it. Homeowners are entitled to expect a system designed for their property, an explanation they can understand and support that survives beyond the invoice, and the transition will become considerably more convincing when those expectations are consistently met.
