Unvented cylinders

Unvented cylinders

The Law on your Unvented Cylinders

To work on or install an Unvented Cylinders in the Uk, The engineer must be trained and hold a competent persons certificate (G3 Vented and Unvented Systems).

All Unvented cylinders must also be notified to the local building control

Here at JAS Plumbing & Heating we hold this certificate and can notify the building control on your behalf.

Unvented CylindersMaintenance

How do I know if I have a problem?

Quite simply there will be water coming from the tundish (see photo) by your unvented cylinders or there will be no hot water.

Should the cylinder be serviced?

Yes, Unvented cylinders should be serviced annually by a trained professional to check that all components work and all safety components are functional.

What do we check for?

  • Unvented cylindersBlocked filters
  • Good Flow
  • Safety Devices are working
  • Water is at correct temperature
  • Temperature controls are working correctly
  • Fitted to building regulations

Book Online Today

Why choose us?

We needed a complete plumbing and heating overhaul to a large property with very old, confusing and complicated plumbing that needed to be updated with 2 new boilers, 25+ radiators and then split into multiple zones. We took a risk with Jason based on the very good reviews we had read and are absolutely thrilled with what he has achieved in just over 2 weeks. By applying a calm and methodical approach to problem solving, Jason works hard to provide a professional finish and the right solution. He is very punctual, excellent at estimating his effort and reliable. We particularly appreciated Jason’s prompt response to our emailed question throughout the process. We will be very happy to have Jason come back for more projects. Thank you Jason.

Zeena, branston

I cannot say how delighted i was for the boiler service work undertaken by jason.
He was incredibly thorough having a reasonable idea of the work required myself. He had all the necessary equipment to not only undertake the work but also perform gas pressure and carbon monoxide presence tests. In my case going out of his way to rectify a CO problem identified through the fitting of new flue gaskets
I will ensure other friends and family are aware of your company and the exemplary service you provide.

Paul Jones, Lincoln