Vokera Vision 20S (ErP) System Boiler and Rear Flue

The Vokera Vision 20S (ErP) System Boiler and Rear Flue is a compact condensing system boiler supplied with a rear flue. A system boiler heats the radiators and a hot water cylinder, and it has the main heating parts built in, so there is no feed and expansion tank in the loft.

Where the Vision 20S system boiler suits

Pick a system boiler when the house has more than one bathroom or needs plenty of stored hot water. Paired with an unvented cylinder, several outlets can run at once. The Vision 20S is small enough for a kitchen cupboard, and the rear flue lets it sit tight to an outside wall. It has built-in frost protection, and a low temperature option that suits underfloor heating.

Specification

• Brand: Vokera
• Range: Vision
• Maker code: 20099228
• Suitable for: Natural gas system boiler with a hot water cylinder
• Pack quantity: Kit of boiler and rear flue

Common Questions

What is the difference between a system boiler and a combi?

A system boiler heats a hot water cylinder as well as the radiators, so several outlets can run together. A combi heats water on demand with no cylinder.

Can the Vokera Vision 20S run underfloor heating?

It has a low temperature option that suits underfloor heating. The underfloor system still needs its own design and controls.

Will the Vision 20S fit where my old Vokera was?

It uses the standard Vokera pipework layout, which makes replacing many older Vokera models simpler. Check the old model against the manual.

Planning a Glasgow install

Check the wall behind the boiler is an outside wall before you rely on a rear flue, and measure its depth. A cylinder, controls and usually a motorised valve are needed with a system boiler, so plan those at the same time. The standard Vokera layout helps when replacing an older Vokera. Installation and commissioning are a job for a Gas Safe registered engineer.

The Vokera Vision 20S (ErP) System Boiler and Rear Flue is part of our boilers range.

Get it from Plumb Parts at 555 South Street, Glasgow G14 0QX. Counter times run Mon-Fri 8am-5pm with Sat-Sun 8am-1pm at weekends, or order on the website.