Is your heat pump too big? We revisited Judith Leary Joyce’s Victorian home in St Albans (featured on the channel last year) after she discovered her heat pump was oversized AND she’d been running it all wrong!
The Everything Electric community spotted the problem before she did! Here’s what happened next.
- Judith’s Retrofitting Journey Episode
- Leah Robson
- Judith’s Latest Book “What the Builder Won’t Tell You”
Timestamps
0:00 Intro
1:00 What “heat pump size” actually means
1:27 Judith’s heat pump
3:56 The fix: reinstating radiators & replumbing the system
4:24 Why heat pumps need simplicity
4:57 Oversizing vs undersizing
5:38 How to actually run a heat pump
6:21 The counterintuitive rule: switch it ALL on to save money
8:59 Retrofitting numbers from 25,500kWh to under 6,000!
11:09 Judith’s advice to others
Why not come and join us at our next Everything Electric expo: www.everythingelectric.show
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- Everything Electric NORTH – 8th-9th May 2026
- Everything Electric WEST – 12th-13th June 2026
- Everything Electric GREATER LONDON – 11th-12th September 2026
- Everything Electric SYDNEY – 18th-20th September 2026
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