Uploaded December 2025 | Updated September 2026, 3 weeks ago
Get a Heat Pump Quote: https://tech.referrals.octopus.energy/uOYXOG2p
Wondering why your heat pump efficiency drops in cold weather? In this video I take you through my real-world data, showing how my COP went from 2.38 (238% efficient) during a cold snap all the way back up to 4.36 — and the simple tip every new heat pump owner needs to know.
I break down daily, weekly and monthly performance using the Vaillant app, explain how defrost cycles impact efficiency, and show how cheap-rate tariffs, solar and battery storage help keep running costs low.
Whether you’re new to heat pumps, worried about winter performance, or trying to understand your energy bills, this video will give you the perspective and confidence you need.
Chapters:
• Why COP crashes in cold snaps
• The simple “efficiency trick” anyone can do
• My real electricity usage and COP data
• Cheap-rate tariffs, solar and battery tips
• How to manage a heat pump without batteries or solar
If you’re considering a heat pump, already have one, or want to save money on your heating this winter — this video is for you.
Heat Pump Panic? Watch This Before You Complain About Your Bills
The ONE Thing Every New Heat Pump Owner Must Understand
Heat Pump Panic? Watch This Before You Complain About Your Bills
Stop Freaking Out About Your Heat Pump Efficiency — Here’s the Truth
New Heat Pump Owners: Don’t Make This Rookie Mistake
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Sign up to Octopus Energy for a free £50: https://share.octopus.energy/bold-mist-390
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My videos are made with DJI gear.
Osmo Action 4 Camera - amzn.to/3MHvybO
DJI Mic Mini - amzn.to/3OCkn56
Audio-Technica ATR2100x-USB Mic - amzn.to/3OCkn56
Insta360 Link 2C webcam - amzn.to/3OCkn56
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My system :
Sunsynk 8.8kW Inverter
Longi HiMo 6 430w Panels x 22
16 NW facing & 6 SE facing
Installed by Dorset Solar Solutions
20kWh Dyness Battery
Vaillant Arotherm Plus 7kW Heat Pump
200L UniStor Cylinder
45L Buffer tank
140sqM Detached 1997 built house
10mm copper microbore pipework downstairs
Installed by British Gas
Get a Heat Pump Quote: https://tech.referrals.octopus.energy/uOYXOG2p
Wondering why your heat pump efficiency drops in cold weather? In this video I take you through my real-world data, showing how my COP went from 2.38 (238% efficient) during a cold snap all the way back up to 4.36 — and the simple tip every new heat pump owner needs to know.
I break down daily, weekly and monthly performance using the Vaillant app, explain how defrost cycles impact efficiency, and show how cheap-rate tariffs, solar and battery storage help keep running costs low.
Whether you’re new to heat pumps, worried about winter performance, or trying to understand your energy bills, this video will give you the perspective and confidence you need.
Chapters:
• Why COP crashes in cold snaps
• The simple “efficiency trick” anyone can do
• My real electricity usage and COP data
• Cheap-rate tariffs, solar and battery tips
• How to manage a heat pump without batteries or solar
If you’re considering a heat pump, already have one, or want to save money on your heating this winter — this video is for you.
Heat Pump Panic? Watch This Before You Complain About Your Bills
The ONE Thing Every New Heat Pump Owner Must Understand
Heat Pump Panic? Watch This Before You Complain About Your Bills
Stop Freaking Out About Your Heat Pump Efficiency — Here’s the Truth
New Heat Pump Owners: Don’t Make This Rookie Mistake
--------------------------------------------------------------------
Sign up to Octopus Energy for a free £50: https://share.octopus.energy/bold-mist-390
--------------------------------------------------------------------
My videos are made with DJI gear.
Osmo Action 4 Camera - amzn.to/3MHvybO
DJI Mic Mini - amzn.to/3OCkn56
Audio-Technica ATR2100x-USB Mic - amzn.to/3OCkn56
Insta360 Link 2C webcam - amzn.to/3OCkn56
--------------------------------------------------------------------
My system :
Sunsynk 8.8kW Inverter
Longi HiMo 6 430w Panels x 22
16 NW facing & 6 SE facing
Installed by Dorset Solar Solutions
20kWh Dyness Battery
Vaillant Arotherm Plus 7kW Heat Pump
200L UniStor Cylinder
45L Buffer tank
140sqM Detached 1997 built house
10mm copper microbore pipework downstairs
Installed by British Gas
