Glow Worm vs Potterton
Glow Worm
Potterton
Average Price
£950
Glow Worm
£1,100
Potterton
Energy Efficiency
93.2%
Glow Worm
93.8%
Potterton
Warranty
7.0 years
Glow Worm
8.5 years
Potterton
Customer Rating
4.2/5
Glow Worm
4.3/5
Potterton
Glow Worm vs Potterton: Summary
When comparing Glow Worm and Potterton boilers, several key differences emerge. Glow Worm, established in 1934, offers boilers with an average efficiency of 93.2% at an average price of £950. Meanwhile, Potterton boilers average 93.8% efficiency at £1,100.
Glow Worm boilers come with an average warranty of 7.0 years, compared to Potterton's 8.5 years. Customer satisfaction ratings show Potterton ahead at 4.3/5, while reliability scores give Potterton a slight edge.
Both manufacturers offer smart control compatibility and produce boilers suitable for different property types. Both are based in United Kingdom.
Detailed Comparison
Who Should Choose Glow Worm
- Budget-conscious homeowners looking for great value
- Tech-savvy homeowners wanting smart home integration
- Those who prefer to support UK manufacturing
- Homeowners looking for efficient combi boilers
Who Should Choose Potterton
- Those wanting longer warranty coverage for peace of mind
- Homeowners valuing customer satisfaction and after-sales support
- Those planning to stay in their home long-term
- Those looking for a boiler with strong performance
Popular Boiler Models
Glow Worm Popular Models
| Model | Type | Efficiency | Price |
|---|---|---|---|
| Glow Worm Energy 30C | Combi | 93.2% | £950 |
Potterton Popular Models
| Model | Type | Efficiency | Price |
|---|---|---|---|
| Potterton Promax SL | System | 93.8% | £1100 |
Approved Installers
Glow Worm Installers
No installer data available
Potterton Installers
No installer data available
Efficiency & Running Costs
A more efficient boiler can significantly reduce your heating bills. Based on average UK gas prices and a typical 3-bedroom house:
Glow Worm
Average Efficiency
93.2%
Estimated Annual Running Cost
£1,210
Based on average UK gas usage
Potential Annual Savings vs. Old Boiler (80% Efficient)
£170
Potterton
Average Efficiency
93.8%
Estimated Annual Running Cost
£1,203
Based on average UK gas usage
Potential Annual Savings vs. Old Boiler (80% Efficient)
£177
Customer Reviews & Testimonials
Glow Worm Owner Reviews
"Glow Worm boilers offer excellent reliability. We've had ours for 3 years with no issues. The efficiency is great and it's quiet in operation."
John D. - Glow Worm Energy 30C Owner
"Installation was straightforward and the smart controls make it easy to manage heating. Customer service is responsive when needed."
Sarah T. - Boiler Owner
Potterton Owner Reviews
"Potterton boilers offer excellent reliability. We've had ours for 3 years with no issues. The efficiency is great and it's quiet in operation."
John D. - Potterton Promax SL Owner
"Installation was straightforward and the smart controls make it easy to manage heating. Customer service is responsive when needed."
Sarah T. - Boiler Owner
Frequently Asked Questions
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