Saunier Duval vs Vaillant
Saunier Duval
Average Price
£1,000
Saunier Duval
£1,450
Vaillant
Energy Efficiency
93.5%
Saunier Duval
94.7%
Vaillant
Warranty
8.0 years
Saunier Duval
9.8 years
Vaillant
Customer Rating
4.2/5
Saunier Duval
4.5/5
Vaillant
Saunier Duval vs Vaillant: Summary
When comparing Saunier Duval and Vaillant boilers, several key differences emerge. Saunier Duval, established in 1907, offers boilers with an average efficiency of 93.5% at an average price of £1,000. Meanwhile, Vaillant boilers average 94.7% efficiency at £1,450.
Saunier Duval boilers come with an average warranty of 8.0 years, compared to Vaillant's 9.8 years. Customer satisfaction ratings show Vaillant ahead at 4.5/5, while reliability scores give Vaillant a slight edge.
Both manufacturers offer smart control compatibility and produce boilers suitable for different property types. Saunier Duval is based in France, while Vaillant originates from Germany.
Detailed Comparison
Who Should Choose Saunier Duval
- Budget-conscious homeowners looking for great value
- Tech-savvy homeowners wanting smart home integration
- Homeowners looking for efficient combi boilers
Who Should Choose Vaillant
- 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
- Homeowners wanting access to a wide network of approved installers
- Those looking for a boiler with exceptional reliability
Popular Boiler Models
Saunier Duval Popular Models
| Model | Type | Efficiency | Price |
|---|---|---|---|
| Saunier Duval Thema Condens | Combi | 93.5% | £950 |
Vaillant Popular Models
| Model | Type | Efficiency | Price |
|---|---|---|---|
| ecoFIT pure | Combi | 93.0% | £950 |
| ecoTEC pro | Combi | 93.0% | £1,100 |
| ecoTEC plus | Combi | 94.0% | £1,300 |
| ecoTEC Plus LPG | Combi | 94.0% | £1,350 |
| ecoTEC exclusive | System | 97.0% | £1,800 |
Approved Installers
Saunier Duval Installers
No installer data available
Vaillant Installers
BOXT
Premium Partner
E.ON
Advanced Installer
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:
Saunier Duval
Average Efficiency
93.5%
Estimated Annual Running Cost
£1,206
Based on average UK gas usage
Potential Annual Savings vs. Old Boiler (80% Efficient)
£173
Vaillant
Average Efficiency
94.7%
Estimated Annual Running Cost
£1,191
Based on average UK gas usage
Potential Annual Savings vs. Old Boiler (80% Efficient)
£186
Customer Reviews & Testimonials
Saunier Duval Owner Reviews
"Saunier Duval 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. - Saunier Duval Thema Condens Owner
"Installation was straightforward and the smart controls make it easy to manage heating. Customer service is responsive when needed."
Sarah T. - Boiler Owner
Vaillant Owner Reviews
"Vaillant 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. - ecoFIT pure Owner
"Installation was straightforward and the smart controls make it easy to manage heating. Customer service is responsive when needed."
Sarah T. - ecoTEC pro Owner
Frequently Asked Questions
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