Direct-flue option for Glow-worm combi boiler

Glow-worm
No visible flue — This high-efficiency combi boiler from Glow-worm has a direct rear flue option.
Glow-worm’s Flexicon cx boiler is said to be the only high-efficiency combi on the UK market with a direct rear-flue option and small enough to be fitted inside a kitchen wall cupboard. There are two boilers, with outputs of 24 and 30 kW and offering a 5 s response to demand for hot water. They deliver 9.6 and 12.3 l/min, respectively, through a 35 K temperature rise. Both units are 700 mm high, 390 mm wide and 280 mm deep. They have SEDBUK A rating. The small size of these boilers is made possible by using high-grade cast aluminium for the heat exchanger, a material that has excellent thermal conductivity. The direct rear flue is telescopic, so there is no need to cut to length. A fixing jig ensures the hanging bracket and jig are perfectly aligned. The design of the pre-fixing kit allows pre-installation and system testing before the boiler is connected. All copper tails are clip distance from the wall for easy connection to system pipework. A pull-out block for electrical connections eliminates the need to remove the front casing during installation or commissioning. These boilers can also be installed with volt-free controls, so that Part P approval is not required. An optional condensate pump enables cx boilers to be installed in places with restricted access to a drain.
Related links:



modbs tv logo

Rinnai UK launches applied products division

Rinnai is launching a new division - Rinnai Applied - which will be dedicated to the design, supply and service of larger HVAC units and systems that will meet the specific heating, ventilation, air conditioning and hot water demands of commercial and industrial premises.

Engineering services alliance welcomes government consultation on retentions and late payments

Actuate UK, the engineering services alliance, has welcomed the new government consultation on reforming cash retentions and taking legislative measures against late payments to small businesses, as part of the new Small Business Plan unveiled on 31st July 2025.