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Boiler of the Month Glow-worm Ultimate3

Published: 07 Mar 2025 ・ Read time: 4 Mins
If you’re searching for an A-rated boiler that offers exceptionally high performance alongside a superb guarantee and optional increased warranty, then the Ultimate3 from Glow-worm could be your perfect match.
One of the most popular boilers with homeowners, this Glow-worm model is our boiler pick of the month thanks to its reliable and efficient heating solution alongside an exceptional ERP. 
Here at City Plumbing, the home of heating, we continue our expert boiler recommendations by exploring the wealth of benefits the Glow-worm Ultimate3 30kW Combi Boiler offers.

About the Glow-worm Ultimate3 30kW Combination Boiler

The Glow-worm Ultimate3 30kW Combi Boiler makes the best of available space while offering both hot water and heating. Renowned for its ultra-efficiency in performance, this is also the best boiler for homeowners looking for more user-friendly LCD displays. 
Complete with a boiler, flue horizontal, and power system filter, the Ultimate3 from Glow-worm is a natural gas combi boiler that includes features like an aluminium heat exchanger and a Grundfos pump, which further help contribute to its A-rated performance.

Features of the Glow-worm Ultimate3 Boiler

The Ultimate3 30kW Combi Boiler from Glow-worm is designed to provide reliable and efficient heating and hot water. Here's a breakdown of its fantastic features and benefits that can really help homeowners when considering a new boiler:
  
Core Performance & Efficiency:
  • 30kW Combi Boiler: This type of boiler provides both central heating and hot water on demand, eliminating the need for separate hot water cylinders.  The 30kW output makes it suitable for medium-sized homes (approximately three to four bedrooms) with higher hot water requirements, including those with more than one bathroom.   
  • Efficiency: Boasting a a high ERP (Energy-Related Products) indicates excellent energy efficiency, which can help lower homeowner's energy bills.  This boiler achieves an ERP A-rating, which is a key factor in reducing energy useage.
  • Heat Exchanger: The boiler utilises an automotive-grade aluminium heat exchanger, designed for robust and reliable performance.
  • Grundfos Pump: The inclusion of a Grundfos modulating pump further enhances efficiency by adapting to the home's heating and hot water demands.  
User-Friendly Features:
  • LCD Display: A modern, bright LCD display with an easy-to-use interface for simple control and monitoring.  
  • Compatibility: It’s compatible with Glow-worm controls, including the MiGo app-based control, which allows for remote control and enhanced convenience.  
Reliability and Guarantee:
  • Glow-worm offers a standard 5-year guarantee, with the option to extend it to 10 years under certain conditions (registration through Glow-worm's Club Energy and installation with a Glow-worm Power Filter).  
Important Considerations:
  • Installation: It's crucial to have the boiler installed by a Gas Safe registered engineer.
  • Warranty: Pay close attention to the warranty terms, as extended warranties often require specific conditions to be met.
  • Flue Options: The boiler offers flexible flue options, but maximum flue lengths should be considered during installation.  

Shop The Best Boilers at City Plumbing

Ultimately, the Glow-worm Ultimate3 30kW Combi Boiler aims to deliver a balance of efficiency, performance, and user-friendliness, making it a viable option for many homeowners. Ideal for medium-sized homes, this boiler can handle the heating and hot water demands of typical family homes.
Help your customers make the switch to the Glow-worm Ultimate3 boiler. Take a look at our City Plumbing website for more information.

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