Annual Service

Annual Service

A Vokèra annual service and safety check ensures that your appliance maintains its efficiency, safe running and validates any Vokèra warranty that you may have.

Call 01274 866100 between 8.15am – 5pm Monday – Friday or Saturday 8am – 12pm (excluding bank holidays).

A Vokera annual service includes:

An experienced and professionally qualified engineer will service your boiler in accordance with the following schedule:

  • Check boiler performance, flue and ventilation
  • Visually check all components for water leaks
  • Full inspection for damaged or worn components
  • Visually inspect burner and heat exchanger for deposits, clean accordingly
  • Visually check for satisfactory ignition, flame picture and stability
  • Check flame failure device, check and adjust burner pressure
  • Fully check operation of boiler and controls
  • Check expansion vessel and reset pressure accordingly
  • Carry out a flue gas combustion analysis

Book an annual service

Boiler Maintenance

Boiler Maintenance

Boiler maintenance is important to ensure the continued safe running and efficiency of your boiler. Vokèra recommends that your boiler has an annual service and safety check, which must be carried out by a Gas Safe Registered engineer.

For more information on Vokèra’s service back up please see details below, download our boiler care booklet or call our customer care team on 01274 866100 between 8.15am – 5pm Monday – Friday or Saturday 8am – 12pm (excluding bank holidays).

Boiler Care Leaflet

Boiler Care

Click on image to download Vokèra’s boiler care leaflet.

We are passionate about delivering high levels of customer satisfaction, to find out more about our performance click here.

If you would like to rate our service please click here.

 Important safety precautions should you smell gas

DO NOT…
Do not smoke or strike matches
Do not operate electrical appliances
Do not turn electrical switches on or off
DO…
Do extinguish any naked flames
Do open doors and windows
Do evacuate the building and keep people away from the affected area
Do turn off the gas at the mains
Do telephone the national gas emergency service on 0800 111999

Choose a Product

Choose a product

This section is designed to aid you in choosing the correct heating solution for your home. When you have answered all the questions, the heating solutions that best suit your situation will be displayed.

If you still require assistance, you can speak to our technical team who will be happy to advise you, please call: 0844 391 0999 and select option 4.

Controls

Controls

Central heating controls play an important part in a heating system. Controls provide a homeowner with flexibility as they allow you to have the boiler on at different times of the day, at different temperatures, with modern controls even automatically sensing the temperature and adjusting the boiler operation to provide the ultimate comfort in home heating.

As well as providing greater flexibility and comfort, they play an important part in energy saving. For the relatively low additional investment when upgrading a boiler and central heating system, controls can save up to 10% of a homeowners energy usage.

 BeSMART

Linea One
Unica i
Vision Combi
Compact A
Verve ✓ (8)
Mynute i ✓ (8)
Vision System ✓ (8)

 Downloads

For further information on the BeSMART, please click here.

711 OpenTherm RF programmable room thermostat

Linea One ✓ (1)
Unica i
Vision Combi ✓ (3)
Compact A ✓ (3)
Verve ✓ (2)
Mynute i ✓ (2)
Vision System ✓ (2)
Mynute VHE x

Weather Sensor

Outside weather compensation sensor

Linea One ✓ (1)
Unica i
Vision Combi ✓ (3)
Compact A ✓ (3)
Verve ✓ (2)
Mynute i ✓ (2)
Vision System ✓ (2)
Mynute VHE x

7 day RF programmable room thermostat

Linea One
Unica i ✓ (6)
Vision Combi
Compact A
Verve ✓ (2)
Mynute i ✓ (2)
Vision System ✓ (2)
Mynute VHE ✓ (2)

RF room thermostat control

Linea One
Unica i
Vision Combi
Compact A
Verve
Mynute i
Vision System
Mynute VHE

(1) Requires wiring kit – code 1221179 – contact Vokèra Technical for advice.

(2) Can be used on heating only applications – contact Vokèra Technical for advice.

(3) Requires control interface – code 29450143 – contact Vokèra Technical for advice. The addition of an energy saving control will override any settings that have been programmed into the built in digital clock on the Vision Combi.

(5) Outside weather compensation control is supplied in the box with every Linea One.

(6) Wiring needs to be reconfigured – contact Vokèra Technical for advice.

(7) Compact A 24 hour analogue

Vokèra Controls

For more information on the types of controls Vokèra offer, download the PDF leaflet below or call us for more advice on: 0844 391 0999.

Download the Vokèra energy saving controls catalogue here.

 It’s Time to Take Control

The new Vokèra controls course can help you understand the principles of combustion and the fundamentals of how control technology can work in conjunction with boiler operation. Additionally the course covers how and when to incorporate these technologies into existing and new heating systems and how you can use this knowledge to help your customers reduce fuel usage.

To book your free place: Email training@vokera.co.uk or call us on 0844 391 0999 and select option 5

 Choosing the Right Control

How can controls improve the ErP efficiency rating?

Differing types of controls are classified according to the ‘uplift’ in efficiency it brings to the package. There are eight classes of control system, each adds an efficiency percentage to the boiler seasonal space heating ErP efficiency rating. That is how the package efficiency is calculated. Additional heaters such as a second boiler, heat pump or solar input will also adjust the package efficiency:

Class I: Room Thermostat: A room thermostat that controls the on/off operation of a heater. Performance parameters, including switching differential and room temperature control accuracy are determined by the thermostat’s mechanical.

Class II: Weather compensator control, for use with modulating heaters: A heater flow temperature control that varies the set point of the flow temperature of water leaving the heater dependent upon prevailing outside temperature and selected weather compensation curve. Control is achieved by modulating the output of the heater.

Class III: Weather compensator control, for use with on/off output heaters: A heater flow temperature control that varies the set point of the flow temperature of water leaving the heater dependent upon prevailing outside temperature and selected weather compensation curve. Heater flow temperature is varied by controlling the on/off operation of the heater.

Class IV: TPI room thermostat, for use with on/off output heaters: An electronic room thermostat that controls both thermostat cycle rate and in-cycle on/off ratio of the heater proportional to room temperature. TPI control strategy reduces mean water temperature, improves room temperature control accuracy and enhances system efficiency.

Class V: Modulating room thermostat, for use with modulating heaters: An electronic room thermostat that varies the flow temperature of the water leaving the heater dependent upon measured room temperature deviation from room thermostat set point. Control is achieved by modulating the output of the heater.

Class VI: Weather compensator and room sensor, for use with modulating heaters: A heater flow temperature control that varies the flow temperature of water leaving the heater dependent upon prevailing outside temperature and selected weather compensation curve. A room temperature sensor monitors room temperature and adjusts the compensation curve parallel displacement to improve room comfort. Control is achieved by modulating the output of the heater.

Class VII: Weather compensator and room sensor, for use with on/off output heaters: A heater flow temperature control that varies the flow temperature of water leaving the heater dependent upon prevailing outside temperature and adjusts the compensation curve parallel displacement to improve room comfort. Heater flow temperature is varied by controlling the on/off operation of the heater.

Class VIII: Multi-sensor room temperature control, for use with modulating heaters: An electronic control, equipped with 3 or more room sensors that varies the flow temperature of the water leaving the heater dependent upon the aggregated measured room temperature deviation from room sensor set points. Control is achieved by modulating the output of the heater.

Unica i32 plus Class VI controls (Vokèra 711 RF programmable thermostat plus weather compensation sensor) achieves an ErP A+ (98%) space heating package rating.

CodeDescriptionClass IClass IIClass IIIClass IVClass VClass VIClass VIIClass VIII
20059642RF room thermostat control
20063869Hard-wired room thermostat control
20101743RF programmable room thermostat
200638747 day HW programmable room thermostat
20050690OpenTherm RF programmable room thermostat (white)
20050691OpenTherm RF programmable room thermostat (black)
29450145RF outside weather compensation sensor (photovoltaic)
2359259Outside weather compensation sensor
Kit code711 and outside weather compensation sensor kit
PACKAGE / SYSTEM UPLIFT1%2%1.5%2%3%4%3.5%5%

Evacuated Tube Collectors

Vokèra Zenith evacuated tube collectors

Vokèra’s solar evacuated tube collectors are called Zenith, these are available from 1 to 6 collectors in a series, depending upon your requirement. Vokèra offers pre-sales advice and can arrange a no obligation quotation.

evacuated_tube_solar_final

Features

  • Ideal for retro fit and new build applications
  • Long working life
  • Solar Keymark seal of approval
  • MCS Approved
Information Downloads

Further Information & Advice

Solar thermal evacuated tube collectors can provide a percentage of your domestic hot water needs, the remaining shortfall is made up by your traditional gas boiler (or other heating system). An evacuated tube collector system is made up of the following main components: Solar evacuated tube collector(s), twin coil water cylinder, traditional boiler, pump station and control.

Vokèra advises that a solar evacuated tube system is connected to a twin coil cylinder and a system or open vent boiler. This allows the solar energy collected to be stored in a cylinder for later use, the boiler also acts as a top up, when the solar evacuated tube collector does not reach the desired temperature. Current regulations are unclear as to the usage of solar thermal installations with combi boilers. We will update this page upon clarification of the guidelines.

Flat Plate Collectors

Vokèra Zenith solar ‘On tile’ and ‘Inset’ flat plate collectors

Vokèra’s range of solar flat plate collectors are called Zenith, these are available from one to six collectors in a series, depending upon your requirement. Vokèra offers pre-sales advice and can arrange a no obligation quotation.

On Tile

Features

  • 10 year warranty
  • Solar Keymark seal of approval
  • MCS approved – demonstrating the quality and reliability
  • Lifespan of up to 20 years

Information Downloads

Further Information & Advice

Vokèra solar flat plate collector systems are made up of the following main components: solar flat plate collector(s), pump station, control, twin coil water cylinder and traditional boiler. The solar system will provide a percentage of the domestic hot water requirement, the boiler then steps in to make up the differential.

We recommend that a solar flat plate collector system is connected system or open vent boiler and a twin coil cylinder. This allows the solar energy collected to be stored in a cylinder for later use and the boiler provides a top up in temperature, when the solar collector does not reach the desired temperature of 60°. Current regulations are unclear as to the usage of Solar thermal installations with combi boilers. We will update this page upon clarification of the guidelines.

Renewable Energy

Renewables

Renewable energy technology has significantly progressed in recent years, making renewable energy products more financially accessible. There is a wide range of renewable energy products now available, including: solar heating, air source heating, ground source heating, biomass heating, combined heating and power.

All renewable energy products have their advantages and disadvantages, and you can find out more about the different technologies by clicking on the links. Some renewable energy products have a much quicker payback period than others and it will always depend on which fuel you are displacing. It is important to seek advice from the manufacturer or qualified engineer on renewable energies to establish what energy savings are achievable for your individual circumstances.

Vokèra offer the following Renewable Energy Products:

Model Name
Description
Overview
Flat Plate Collectors ‘On Tile’ and ‘Inset’ Collectors Vokera’s range of flat plates collectors; available as ‘On Tile’ and ‘Inset’
Evacuated Tube Collectors Part of the Zenith Solar Thermal range This type of solar collector is mounted on top of your roof tiles and can achieve better efficiencies in certain circumstances due to its vacuum tube construction.
AriaPRO Air Source Heating Air to Water Heat Pump Air source heat pumps utilises air to generate warmth to heat water using compression technology.

This shows a heating system with renewable energy products

air-source-heating

This shows a heating system with an air source heating appliance

Mynute VHE

Vokèra Mynute VHE Open Vent Boiler

The Mynute VHE is Vokèra’s open vent condensing boiler. Also the range has a intuitive control panels which is easily operated and used to adjust the appliance.

 Features

  • ErP Class A
  • 5 year parts & labour warranty
  • Open vent boiler for central heating only
  • Can provide domestic hot water when installed with a storage cylinder
  • Simple to operate
  • Compatible with solar thermal

 Information Downloads

Click here to view all Vokèra literature.

Open Vent Boiler

Open Vent Boilers

An open vent boiler is a boiler that is installed on an open vent central heating system, the term open vent, relates to the heating system being open to atmospheric pressure, as major components to the open vent system includes feed and expansion tanks in the loft space. An open vent boiler heats the radiators and, via a storage cylinder, the domestic hot water.

An open vent boiler is also known as a conventional or regular boiler. If you currently have an open vent boiler in your property, it can be more straightforward to have a direct replacement, unless your property or lifestyle has changed. Open vent boilers are also compatible with solar thermal, therefore if you currently have an open vent boiler, adding a Solar thermal system can be fairly straightforward. Always seek advice from your Gas Safe Registered engineer.

Model Name Description
Mynute VHE Compact and flexible open vent boiler

An open vent boiler is an ideal boiler if:
  •  You want to replace an existing open vent boiler and are happy with the performance your open vent boiler provides
  •  You have more than one bathroom in your property
  •  Your mains water pressure is low

System Boiler

System Boilers

A system boiler is a boiler that is installed on a sealed central heating system, as the word suggests it is not open to atmospheric pressure and the system is kept with a closed circuit.

In this type of heating system, a system boiler connects to a storage cylinder that provides the domestic hot water. As the heating system is sealed it requires no tank in the loft space. When coupled with a mains pressure hot water storage cylinder (known as an invented cylinder), it is well suited to properties with multiple bathrooms. In this configuration, good flow rates can be maintained if more than one domestic hot water outlet is in use at the same time. System boilers are also compatible with solar thermal, therefore if you currently have a system boiler, adding a solar thermal system can be fairly straightforward. Always seek advice from your Gas Safe Registered engineer.

Model Name Description Solar Compatible
evolve S An evolutionary step in gas boilers Yes
Vision S Feature rich kitchen cupboard fit boiler Yes

A system boiler is an ideal boiler if:

  •  You want to replace an existing system boiler and are happy with the performance your system boiler provides
  •  You have more than one bathroom in your property
  •  Your mains water pressure is low
  •  You have a regular boiler and you want to remove the feed and expansion tanks in your loft space