Unvented Central Heating System

Supply pressure should be around 2 bars and able to supply the required flow rates.

Unvented central heating system.

What is an unvented megaflo boiler system. It has a loose fitting lid and is partially filled with water. An unvented hot water cylinder is a pressurised system which is fed directly from the cold mains water feed and therefore can deliver hot water at mains pressure which is great for improving the performance of your shower and bath. Vented central heating systems versus unvented pressurised heating system.

Unvented cylinders don t require a cold water storage tank which is ideal if you are pushed for space as well as offering more flexibility when siting the. A megaflo system which is commonly misspelt or heard as a megaflow system is a hot water cylinder made of stainless steel. Before you begin turn off your boiler at the mains power supply and let the water in the entire system cool down. Draining down a sealed central heating system in a pressurised system there is no new water being added on demand water is only ever added to the system when needed and necessary.

The megaflo hot water cylinder also known as the megaflo water heater is unvented and stores hot water as part of the central heating system that your home has. With unvented systems there is no need for a cold storage tank which helps free up space and requires much less pipework. In a vented heating system at the highest point in the system there is at least one header tank.