Which Glow Worm Boiler?

Glow-worm's exceptional regular heat-only boilers (also known as 'open-vent' boilers) provide central heating and hot water via the boiler, a storage cylinder and water tanks.

Is Glow-worm a good boiler?

Glow-worm combi boilers are reliable and efficient units that won't break the bank. They're the ideal choice for homes with a low to moderate demand for central heating and hot water with 24-27 kW models being ideal for properties with 1 bathroom and up to 10 radiators.

What bar should Glow-worm boiler be?

The boiler should read between 1 to 1.5 bar of pressure when the central heating is cold. If this drops too low, below 0.5 bar for example, this normally means water has been lost from the central heating heating system and the filling loop must be used to replace this water.