Uploaded July 2026 | Updated September 2026, 1 hour ago
Can air conditioning really replace a traditional gas central heating system?
In July 2024 I removed my ageing Worcester Greenstar HE gas boiler as my primary heating system and replaced it with a Fujitsu AIRSTAGE multi-split air-to-air heat pump installation costing just over £10,000.
After living with the system through two winters, one summer, and now another UK heatwave, I wanted to share my real-world experience.
This isn't a sponsored review. I paid for the system myself and these are my genuine thoughts after using it every day.
In this video I cover:
• Why I chose air-to-air instead of an air-to-water heat pump
• Why a traditional ASHP wasn't practical for my house
• SCOP and why efficiency actually matters
• Running costs and electricity usage
• My winter heating bills
• Summer cooling performance
• Noise levels
• Defrost cycles
• The Fujitsu app
• What I'd do differently
• Whether I'd spend £10,000 again
For my house, the combination of solar panels, home batteries and off-peak electricity has made this a fantastic solution.
It's not perfect, but after two years I can finally answer the question...
Was it worth it?
⚡ RELATED LINKS
Jamie @ Just Chillin - justchillinairconditioning.co.uk
This recommendation is based entirely on my own experience as a paying customer. I have no commercial relationship with Just Chillin, and they haven’t sponsored or reviewed this video.
❤️ SUPPORT THE CHANNEL
If you find the content useful and want to support the channel, you can join here: youtube.com/@ConsideredUK/join
🐙 SAVE MONEY ON YOUR ENERGY BILL
£50 Credit to both our Octopus Energy Accounts when you SWITCH to Octopus Energy here:
http://share.octopus.energy/noble-bloom-324
🎧 MUSIC
All music is from Epidemic Sound:
epidemicsound.com/referral/tq2vsf
💬 COMMUNITY
Join the Discord: discord.gg/uj3YSQx
📩 BUSINESS ENQUIRIES
For collaborations or sponsorship opportunities:
partnerships@considered.uk
System Install Information
Outdoor Units
• Fujitsu AIRSTAGE AOYG36KBTA5
- Multi Split Outdoor Unit
- Cooling Capacity: 9.5kW
- Heating Capacity: 10.6kW
Connected Indoor Units:
• 2 × ASEH12KMCG Ground Mounted Units
• 1 × AGEG12KVCA Wall Mounted Unit
• 1 × AGEG09KVCA Wall Mounted Unit
Outdoor Unit
• Fujitsu AIRSTAGE AOEG18KBCA2
- Multi Split Outdoor Unit
- Cooling Capacity: 5.0kW
- Heating Capacity: 5.6kW
Connected Indoor Units:
• 1 × ASEH12KMCG Ground Mounted Unit
• 1 × AGEG09KVCA Wall Mounted Unit
Timecodes
0:00 - Is Heating With Air Conditioning Worth It?
01:15 - Not sponsored
01:46 -Why I Replaced My Gas Boiler
03:41 -Why I Didn't Choose an Air Source Heat Pump
04:50 - But AC is for hot countries
05:12 - Choosing the Right Installer
8:30 - My Fujitsu AIRSTAGE Installation
10:39 - A neat looking install
12:25 - Daily Life With Air Conditioning
13:09 - Heating Performance
14:57 - Cooling Performance
16:14 - Noise, and Defrost mode
18:14 - The Fujitsu App
20:26 - Running Costs & Winter Bills
24:58 - Does SCOP Really Matter?
27:07 - Would I Spend £10k Again?
29:46 - Who Should Consider Air-to-Air Heat Pumps?
30:51 - Final Thoughts
Can air conditioning really replace a traditional gas central heating system?
In July 2024 I removed my ageing Worcester Greenstar HE gas boiler as my primary heating system and replaced it with a Fujitsu AIRSTAGE multi-split air-to-air heat pump installation costing just over £10,000.
After living with the system through two winters, one summer, and now another UK heatwave, I wanted to share my real-world experience.
This isn't a sponsored review. I paid for the system myself and these are my genuine thoughts after using it every day.
In this video I cover:
• Why I chose air-to-air instead of an air-to-water heat pump
• Why a traditional ASHP wasn't practical for my house
• SCOP and why efficiency actually matters
• Running costs and electricity usage
• My winter heating bills
• Summer cooling performance
• Noise levels
• Defrost cycles
• The Fujitsu app
• What I'd do differently
• Whether I'd spend £10,000 again
For my house, the combination of solar panels, home batteries and off-peak electricity has made this a fantastic solution.
It's not perfect, but after two years I can finally answer the question...
Was it worth it?
⚡ RELATED LINKS
Jamie @ Just Chillin - justchillinairconditioning.co.uk
This recommendation is based entirely on my own experience as a paying customer. I have no commercial relationship with Just Chillin, and they haven’t sponsored or reviewed this video.
❤️ SUPPORT THE CHANNEL
If you find the content useful and want to support the channel, you can join here: youtube.com/@ConsideredUK/join
🐙 SAVE MONEY ON YOUR ENERGY BILL
£50 Credit to both our Octopus Energy Accounts when you SWITCH to Octopus Energy here:
http://share.octopus.energy/noble-bloom-324
🎧 MUSIC
All music is from Epidemic Sound:
epidemicsound.com/referral/tq2vsf
💬 COMMUNITY
Join the Discord: discord.gg/uj3YSQx
📩 BUSINESS ENQUIRIES
For collaborations or sponsorship opportunities:
partnerships@considered.uk
System Install Information
Outdoor Units
• Fujitsu AIRSTAGE AOYG36KBTA5
- Multi Split Outdoor Unit
- Cooling Capacity: 9.5kW
- Heating Capacity: 10.6kW
Connected Indoor Units:
• 2 × ASEH12KMCG Ground Mounted Units
• 1 × AGEG12KVCA Wall Mounted Unit
• 1 × AGEG09KVCA Wall Mounted Unit
Outdoor Unit
• Fujitsu AIRSTAGE AOEG18KBCA2
- Multi Split Outdoor Unit
- Cooling Capacity: 5.0kW
- Heating Capacity: 5.6kW
Connected Indoor Units:
• 1 × ASEH12KMCG Ground Mounted Unit
• 1 × AGEG09KVCA Wall Mounted Unit
Timecodes
0:00 - Is Heating With Air Conditioning Worth It?
01:15 - Not sponsored
01:46 -Why I Replaced My Gas Boiler
03:41 -Why I Didn't Choose an Air Source Heat Pump
04:50 - But AC is for hot countries
05:12 - Choosing the Right Installer
8:30 - My Fujitsu AIRSTAGE Installation
10:39 - A neat looking install
12:25 - Daily Life With Air Conditioning
13:09 - Heating Performance
14:57 - Cooling Performance
16:14 - Noise, and Defrost mode
18:14 - The Fujitsu App
20:26 - Running Costs & Winter Bills
24:58 - Does SCOP Really Matter?
27:07 - Would I Spend £10k Again?
29:46 - Who Should Consider Air-to-Air Heat Pumps?
30:51 - Final Thoughts
