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FAQ: Has my home got space for a heat pump?

If you’re like many UK homeowners, you might be exploring the idea of installing a heat pump to heat your home more efficiently. But is there space for one in your home?

The good news is that there’s usually a heat pump that can work for your space – whether it’s a ground source, air source, or water source model. And with a recent change to planning rules, it’s now even easier to get started.

Paddox - Heat Pump
Heat pump installation

Which type of heat pump suits your home?

Air source heat pumps

By far the most space-efficient option. These units are typically installed on an outside wall, with good airflow. The outdoor unit is about the size of a washing machine. Inside, your old boiler is replaced by a compact unit that manages heating and hot water.

“The concept may seem strange to us, but actually, in all our homes we have fridges – and an air source heat pump is very much like a fridge working back-to-front.”

Geordie Stewart, Cosy Homes Oxfordshire Scheme Manager

Ground source heat pumps

Great for homes with large gardens. These systems use underground pipe loops to draw heat from the soil. They offer excellent efficiency – but they do need space for digging trenches or boreholes, so aren’t ideal for smaller plots.

Water source heat pumps

These draw warmth from a nearby water source – like a river, lake, or large pond. It’s an option for some rural properties, but not common for most homes.

What else do I need to think about?

Flat or apartment living: Heat pumps can be wall- or roof-mounted in some cases, but it depends on your building’s heating system and layout.

Indoor space: You may need room for a hot water cylinder and other components – often fitted where the boiler used to be.

Insulation is key: Heat pumps work best in well-insulated homes. Improving your insulation first means you can get a smaller, more efficient system that performs better all year round.

Update

New rule change makes heat pumps easier to install

As of May 2025, the government has removed the requirement for planning permission to install a heat pump within one metre of a neighbour’s boundary. This change removes a common barrier for many homeowners – particularly those in terraces or semi-detached homes – making it easier and quicker to get started.

Read about it here: Heat pump rule change ?

Real homes, real results

We’ve helped homeowners across Oxfordshire install heat pumps in all kinds of homes – from Victorian terraces and 1930s semis to pre-1900 cottages. Read what they have to say about living with a heat pump, and why it made sense for their home.

“A ground source heat pump would’ve required too much work in the garden, so an air source heat pump was the obvious choice. We were excited because it was compatible with a house of this size.”

Meg, North Oxford

How we can help

Heat pumps are a smart move – and with the right guidance, the process doesn’t have to be complicated. We’ll help you understand what your home needs, what to focus on first, and what kind of system is right for you.

Before you install a heat pump, we recommend reviewing your home’s insulation and glazing. Then, when you’re ready, we can connect you with vetted local contractors and guide you through the steps.

Taking the next step 

Thinking of making a change? Start with a conversation.

Thinking of making a change? Start with a conversation. Arantxa, our qualified Retrofit Advisor, is here to talk through your goals and how we can help.

Live in Oxfordshire and not sure where to start? Arantxa, one of our experienced Retrofit Advisors, is here to help you understand what’s going on – and talk through what might work for your home. Call 0330 223 2742, or send us a quick message.

Smarter home upgrades. Backed by trusted local expertise.

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