My First-Hand Experience
There has been a lot of discussion lately about heat pumps in homes: how they work, what impact they have on a renovation and whether they’re really worth the investment.
To get beyond the headlines, I decided to experience the process first-hand during my own renovation at @highandslowofabungalow on Instagram.

What is a Heat Pump?
Put simply, a heat pump is a smart, energy-efficient way to heat a home. Unlike a traditional boiler that burns fuel, a heat pump transfers heat from the air (or ground) into your home. Because it moves heat rather than generating it, the efficiency is impressive: for every 1 unit of electricity, a heat pump can produce 3–4 units of heat. Many models can also provide cooling in warmer months — a bonus we don’t always think about in the UK!

The Practicalities
Most heat pumps are installed outside, with a hot water cylinder inside. This can pose challenges in homes with limited space. In my case, it turned out to be an advantage: removing the old wall-mounted gas boiler freed up a corner in our kitchen-dining area, giving me more flexibility in designing the layout and storage.

The Costs and the Grant Scheme
You’ve probably seen the adverts: the UK government is currently offering grants of up to £7,500 to support the switch to low-carbon heating. The process is straightforward — your installer applies for you, manages the paperwork, and you don’t pay VAT.
It’s worth noting, though, that the grant doesn’t cover the full cost. In my own project, even with the grant, the heat pump cost £5,000, and upgrading radiators added a further £2,800.
The key is to shop around. You don’t need to go with the first installer you speak to — I worked with Green Electro Heating and would happily recommend them.

Comfort and Performance
Heat pumps work differently to gas boilers. Instead of blasting out high heat in short bursts, they maintain a steady, comfortable temperature. Some people describe this as a “lukewarm” feel — you won’t get the same quick heat you might be used to, but your home will stay consistently warm.
They’re especially effective with underfloor heating, as the larger surface area makes the most of the gentle, continuous warmth. A friend in Cumbria, for example, installed one alongside underfloor heating throughout and has found it works beautifully.

Beyond Homes: Heat Pumps in Commercial Spaces
Heat pumps aren’t just for residential projects. They can also make a big difference in offices and other commercial spaces where energy efficiency and sustainability are becoming priorities. That said, planning is key — both in terms of insulation and space for the external and internal units.

Things to Keep in Mind

Insulation matters: Without good insulation, a heat pump won’t perform at its best.
Costs vary: Even with grants, expect to budget for additional upgrades such as radiators.
Temperature feel: The warmth is consistent, not intense — great for comfort, but different to what some people are used to.
Installer choice: Take time to find the right installer for your home and needs.

Final Thoughts
For me, the benefits outweighed the challenges. I gained more design flexibility in my kitchen, lowered the carbon footprint of my home, and tapped into government support to make it financially viable.
Heat pumps aren’t a quick fix for every property, but with careful preparation and the right installer, they can be a smart and sustainable choice for the future.

If you’re considering one for your home or office and want to chat through the design implications, feel free to get in touch.

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