The Glow Worm Ultimate3 combi boiler offers excellent value with its compact design and A-rated efficiency that could save you up to £290 annually on energy bills. You'll find it in 30kW (£705) or 35kW (£775) options, both featuring smart controls via the MiGo app and a 5-year warranty that's extendable to 10 years. While it's perfect for small to medium homes, installation costs range from £1,505 to £2,075 – but don't let that stop you from discovering why this boiler's gaining popularity among homeowners.
Key Takeaways
- The Glow Worm Ultimate3 combi boiler costs £705 for 30kW and £775 for 35kW models, with total installation ranging £1,505-£2,075.
- Features ErP A-rating efficiency up to 89.7%, potentially saving homeowners up to £290 annually on energy bills.
- Compact dimensions (740x418x300mm) make it ideal for kitchen cupboards, offering outputs of 30kW or 35kW for different household needs.
- Comes with a 5-year warranty (extendable to 10 years), smart controls via MiGo app, and LCD display for user-friendly operation.
- Delivers hot water flow rates of 12.4-14.4 l/min depending on model, though may not suit larger households requiring higher demands.
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Browse our comprehensive Glow Worm boilers guide to learn more about available models and specifications.
Glow Worm Ultimate3 Combi Boiler Overview
When it comes to efficient home heating, the Glow Worm Ultimate3 combi boiler stands out as a powerful yet compact solution for modern homes.
You'll appreciate its ErP A-rating for both heating and hot water efficiency, helping to keep those energy bills in check.
This wall-mounted unit packs a punch with its automotive-grade aluminium heat exchanger and smart Grundfos pump, yet it won't take up much space at just 740mm x 418mm x 300mm.
You can control it easily through the bright LCD display or even from your smartphone using the MiGo app.
- Available in 30kW and 35kW options to suit different home sizes
- No need for separate hot water tanks – everything's built right in
- Comes with a generous 5-year warranty, extendable to 10 years
- Features an inbuilt filling loop for easy maintenance
- Compatible with various Glow-Worm control options for flexibility
Glow Worm Ultimate3 Combi Boiler Performance and Efficiency
Performance matters when selecting a new boiler, and the Glow Worm Ultimate3 combi doesn't disappoint in this department. With an impressive ErP A-rating and seasonal efficiency of up to 89.7%, you'll notice the difference in your energy bills straight away.
| Feature | 30kW Model | 35kW Model |
|---|---|---|
| Hot Water Flow | 12.4 l/min | 14.4 l/min |
| Heating Output | 24.2kW | 26.5kW |
| Annual Savings | £160 | £290 |
You'll appreciate the smart Grundfos modulating pump that adjusts its performance based on your heating needs. The automotive-grade aluminium heat exchanger guarantees exceptional performance, while keeping your energy consumption in check. Whether you're running a hot bath or heating your home on a chilly morning, this boiler delivers consistent performance that'll keep your whole family comfortable.
Glow Worm Ultimate3 Combi Boiler Pros and Cons
Before investing in the Glow Worm Ultimate3 combi boiler, you'll want to weigh its strengths and limitations carefully.
Let's break down what you can expect from this popular heating system.
On the positive side, you'll get excellent energy efficiency with its ErP A-rating and potential yearly savings of up to £290 on your energy bills.
The built-in filling loop makes maintenance a breeze, and you've got flexibility with the MiGo app control system.
- 5-year warranty (extendable to 10 years) for peace of mind
- Fits neatly in a standard kitchen cupboard
- High-quality aluminium heat exchanger for reliability
- Competitive pricing starting at £900 for the 30kW model
- Smart control compatibility for modern convenience
However, do keep in mind it's not ideal for larger households with high hot water demands, and you'll need good mains pressure for the best performance.
How Does The Glow Worm Ultimate3 Combi Boiler Compare To Similar Models From Other Manufacturers?
Now that you understand the Ultimate3's key features, let's see how it stacks up against its main competitors in the market.
When compared to similar models like the Ideal Logic Plus and Worcester Bosch, the Ultimate3 holds its own quite well. You'll find it's typically £50-£300 cheaper while offering comparable warranty options and efficiency ratings.
The Ultimate3's high water flow rates of 12.4-14.4 l/min match or exceed many competitors, and its Grundfos pump helps keep those energy bills in check.
Since it's made by industry giant Vaillant, you're getting premium-quality components at a more budget-friendly price point.
While it mightn't be the flashiest option on the market, the Ultimate3 delivers solid performance and reliability without breaking the bank – kind of like getting business class comfort at economy prices.
If you're considering a replacement for an older system, the Ultimate3 is among the best replacement boilers currently available for modernizing your heating setup.
How Much Does A Glow Worm Ultimate3 Combi Boiler Cost?
Looking to get a clear picture of the Ultimate3's price tag?
You'll find the 30kW model priced at £705 and the 35kW at £775 (including VAT). These prices are typically £50-£300 less than comparable models from other manufacturers.
When it comes to total costs, you'll need to factor in both installation and additional components.
Here's what you can expect:
- Basic boiler unit: £694-£774 (including VAT)
- Installation labour: £500-£1,000
- Essential sundries (filter, flue): Around £300
- Total package cost: £1,505-£2,075
- Optional extras: Power flush or magnetic filter may add cost
The final price can vary based on your location and installation complexity.
If you're simply replacing an existing combi boiler, you'll likely fall at the lower end of the installation range.
Glow Worm Ultimate3 Combi Boiler Warranty and Service Support
The Glow Worm Ultimate3 comes with a solid 5-year warranty that you can stretch up to 10 years with the right setup.
To get the extended coverage, you'll need a Gas Safe registered engineer who's part of Glow-worm's Club Reward programme, plus installation of their Power Filter.
Don't forget to register your boiler within 30 days of installation – you'll need your address, installation date, serial number, and the engineer's Gas Safe number.
It's a bit like remembering to mail in that warranty card for your new toaster, but much more important!
Annual servicing is a must to keep your warranty valid.
Glowcare's specialists can handle this for you, and they carry extensive parts stock for single-visit repairs.
Think of it as your boiler's yearly health check-up – essential for keeping it running smoothly.
Final Verdict
While budget-friendly boilers often come with compromises, the Glow Worm Ultimate3 proves you don't need to break the bank for reliable heating performance.
With its high efficiency rating and modern features, you're getting impressive value for your investment.
- Delivers 89.4% efficiency
- Perfect size for medium to large homes with 1-2 bathrooms
- Smart controls through the MiGo app let you manage heating from your phone
- Energy-efficient Grundfos pump helps reduce those monthly bills
- Installation costs stay reasonable at £500-£1,000
If you're looking for a cost-effective combi boiler that doesn't skimp on features, the Ultimate3 is worth considering.
While it may not match premium brands in every aspect, it delivers where it counts – providing reliable heating and hot water without excessive costs.
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