The Glow Worm Energy Store 35 Combi Boiler packs impressive performance with its 19.7 litres per minute flow rate and 30kW heating output, making it ideal for busy households with 1-2 bathrooms. You'll get excellent efficiency with its 89.4% SAP rating and ultra-quiet operation at 51 dBA. Price-wise, expect to invest £2,380-£2,880 including installation, backed by a solid 7-year warranty. There's plenty more to discover about this powerful home heating solution.
Key Takeaways
- The Glow Worm Energy Store 35 Combi costs £1,580-£2,100 for the unit, with total installation costs ranging between £2,380-£2,880.
- It delivers impressive performance with a 19.7 litres/minute flow rate and 30kW heating output, suitable for homes with 1-2 bathrooms.
- The boiler achieves 89.4% SAP efficiency rating and operates quietly at 51 dBA, with A ratings for both heating and hot water.
- A comprehensive 7-year parts and labour warranty is included upon registration, requiring annual servicing to maintain validity.
- The system features two 21-litre insulated tanks and a 5-minute reheat time, ensuring consistent hot water supply for busy households.
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Glow Worm Energy Store 35 Combi Boiler Overview
The Glow Worm Energy Store 35 combi boiler stands out as a powerhouse for busy households with high hot water demands. With its impressive 19.7 litres per minute flow rate, you'll never have to worry about running out of hot water during those hectic morning routines.
This storage combi boiler packs a punch with its 30kW heating output, while maintaining ultra-quiet operation that won't disturb your peace.
You'll appreciate its compact dimensions, making it perfect for tucking away in a kitchen cupboard.
- Perfect for homes with 1-2 bathrooms and multiple bedrooms
- Includes two 21-litre insulated tanks for consistent hot water supply
- LPG compatible without needing an extra conversion kit
- Achieves top-tier A ratings for both heating and water efficiency
At 89.4% efficiency, you're getting reliable performance while keeping those energy bills in check.
Glow Worm Energy Store 35 Combi Boiler Performance and Efficiency
Delivering impressive efficiency ratings across the board, your Glow Worm Energy Store 35 combi boiler achieves an outstanding 89.4% SAP seasonal efficiency rating and an even higher 93% ErP rating. You'll appreciate its A-rating for both heating and hot water, making it a real energy bill saver.
| Feature | Rating | Benefit |
|---|---|---|
| Heating Output | 30kW max | Perfect for larger homes |
| Hot Water Flow | 19.7 l/min | Multiple taps use |
| Noise Level | 51 dBA | Whisper-quiet operation |
With a heating output range of 9.3-31.5kW in condensing mode, you'll get powerful performance when you need it. The two 21-litre insulated tanks guarantee you'll never run out of hot water, with a speedy 5-minute reheat time. It's like having your own mini hot water power station right at home!
Glow Worm Energy Store 35 Combi Boiler Pros and Cons
Beyond its impressive performance metrics, understanding the specific advantages and limitations of the Glow Worm Energy Store 35 combi boiler will help you make a well-informed choice.
You'll appreciate the boiler's high 89.4% efficiency rating and ultra-quiet operation at just 51 dBA – perfect if you don't want to hear your heating system working overtime. The 7-year warranty offers solid peace of mind, while LPG compatibility gives you fuel flexibility without extra parts.
However, there are some trade-offs to weigh. The larger dimensions might make you play tetris with your available space, and the higher initial cost could stretch your budget.
- Ideal for larger homes with its powerful 35kW output
- Easy maintenance with the removable filter system
- Compatible with smart controls for modern convenience
- Fast hot water recovery in under 5 minutes
How Does The Glow Worm Energy Store 35 Combi Boiler Compare To Similar Models From Other Manufacturers?
When comparing the Glow Worm Energy Store 35 against other leading combi boilers, you'll find some interesting trade-offs in performance and value.
The Glow Worm's impressive 19.7 l/min flow rate matches the Vaillant ecoTEC and outperforms both the Worcester Bosch and Viessmann models.
However, its 89.4% efficiency rating falls behind competitors, with Viessmann's Vitodens 200-W leading at 98%.
While the 7-year warranty is decent, it's shorter than the 10-12 years offered by premium brands.
That said, you're getting solid performance at a more budget-friendly price point.
The built-in storage feature puts it on par with higher-end models like the Vaillant ecoTEC plus Storage 938, making it particularly suitable if you've got high hot water demands in your household.
Our popular makes comparison section offers detailed breakdowns of how different manufacturers stack up against each other.
How Much Does A Glow Worm Energy Store 35 Combi Boiler Cost?
The Glow Worm Energy Store 35 combi boiler represents a balance of performance and affordability, with prices ranging from £1,580 to £2,100 for the unit alone.
When you factor in installation costs between £500 to £1,000, plus around £300 for essential items like filters and flues, you're looking at a total investment of £2,380 to £2,880.
The good news is that this boiler's efficiency rating of up to 94% means you'll save money on energy bills in the long run.
Plus, its compact design might help reduce installation costs if you're working with limited space.
- Complete installation must be done by Gas Safe registered engineers
- Installation complexity varies based on your current setup
- Property size and hot water needs affect model selection
- Rear flue option provides flexible installation locations
Glow Worm Energy Store 35 Combi Boiler Warranty and Service Support
Standing behind their commitment to quality, Glow Worm offers a robust 7-year parts and labour warranty for the Energy Store 35 combi boiler.
You'll need to register through Club Energy to gain access to this coverage, which protects you from manufacturing defects and faults.
Don't forget that annual servicing is required to keep your warranty valid.
You'll need a Gas Safe registered engineer to perform this maintenance, which helps catch any potential issues before they become major headaches.
If you ever need support, you've got multiple options at your fingertips.
You can reach their technical support team at 0344 736 0059, or book repairs through 0330 100 3142.
Being part of the Vaillant Group means you'll get reliable backing and access to genuine replacement parts when needed.
Final Verdict
After weighing up all aspects of this boiler, we've reached a clear conclusion about the Glow Worm Energy Store 35.
It's a solid mid-range option that offers good value for larger homes, especially if you're looking for reliable hot water supply and efficient heating.
The combination of high efficiency and competitive pricing makes it an attractive choice for budget-conscious homeowners who don't want to compromise on performance.
While it's not perfect, its strengths generally outweigh its limitations.
- Strong 35kW output and 19.7 litres/min flow rate make it ideal for bigger properties
- Competitive price point between £1,680 – £2,880 offers good value for money
- Space-saving dimensions work well in most installation scenarios
- Built-in storage vessel guarantees consistent hot water supply, even during peak demand
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