Unvented Central Heating System Diagram

Modern heating systems run by gas boilers tend to be unvented or pressurised.

Unvented central heating system diagram.

The s plan is popular because it is versatile you can add an unlimited number of zones simple to wire and easy to fault find on. In an unvented system there is no header tank and the water in the pipes is under pressure. The electric versions use a coiled heating element to heat the water rapidly in a. However our purewell variheat cast iron condensing boiler can be installed in an open heating system.

When the water in a pressurised system expands the pressure in the. The arrangement shown here is most likely for an existing y plan system where the cylinder is being changed to an unvented one. For more advice call our technical team or request a site visit to review your current heating system. One givaway is that there is often a pressure gauge on the boiler measured in bar.

A guide to the most common types of domestic heating and hot water systems with diagrams including indirect boiler system unvented system thermal store. A guide to the different ways of heating domestic hot water so you can identify problems and faults with the hot water tank or central heating system and carry out any maintenance needed. Instantaneous hot water heating systems this method involves using gas or electricity to heat the water to a useable temperature without the need to store the water. Hamworthy s upton condensing boilers and stratton mk2 wall hung boilers are suitable for installation in sealed heating systems only.