Where are UK heat pump installs really heading in 2025?

We’re running an anonymous, installer-only survey to understand how heat pump installations are evolving in the UK, particularly around disruption, system design and long-term performance.

There are no right or wrong answers. All responses are anonymous and will be published only as aggregated results to reflect the collective direction of travel across the installer base.

This is about understanding trade-offs in the real world, not calling out individuals, brands or approaches.

How would you describe your primary role?

Sole trader/small business
Regional installer (10+ installs/month)
National installer
Other

In 2025, how would you describe your typical customer priority?

Compared to 2-3 years ago, how has your approach to radiator upgrades changed?

We now upgrade more radiators than before
About the same as before
We upgrade fewer radiators than before
We actively try to avoid radiator changes where possible

When planning a system today, which statement best reflects your approach?

Design first, disruption follows if required
Balance design and disruption case-by-case
Prioritise minimal disruption wherever possible
Aim to fit heat pumps into existing systems with minimal change

If a heat pump system requires significant emitter upgrades to run at low flow temperatures, what usually happens?

We explain the benefits and proceed
We redesign to reduce disruption
We increase design flow temperature
The customer usually opts out

For a “typical” retrofit, what design flow temperature do you most commonly work to?

How often are weather compensation curves adjusted post-installation?

to emitter age

Which statement do you agree with most?

Lower flow temperatures are the single biggest driver of efficiency
Flow temperature is important, but secondary to ease of install
Modern heat pumps can perform well even at higher flow temperatures
Efficiency differences matter less than customer experience

In your view, the industry is currently moving towards:

More bespoke, house-specific system design
A split market: bespoke at the top, standardised elsewhere
More standardised, repeatable installs
Heat pumps as “boiler replacements”
Unsure

Which trade-off do you think the industry is implicitly making right now?

Installation speed over lifetime efficiency
Customer convenience over system performance
Volume over optimisation
No trade-off: improvements across the board
Depends entirely on the installer

Looking ahead 5–10 years, which approach do you believe will age better?

Low-temperature, highly optimised systems
Higher-temperature, low-disruption installs
A mixed estate of both
It’s too early to tell

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