Installation of Micro CHP

Installing a micro CHP system is very simple and much like fitting a replacement boiler. With the right installer accredited by the Microgeneration Certification Scheme (MCS) you will be able to ensure that you get the installation carried out properly.

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The two things that you must check to ensure you qualify for the Feed-in-Tariff are:

  1. Your chosen micro CHP system must be MCS certified
  2. The installation must be done by an accredited MCS installer

With the current technology, micro CHP is most effective when used in older, larger homes with 3 bedrooms or more. This is because electricity is only generated when the heating system is fired. Modern, efficiently insulated or smaller homes tend to have lower heating requirements and therefore there is less of an opportunity to generate electricity.

Requirements

You will need to ensure the following:

  • You have a metered electricity supply, so that the FIT scheme can measure how much electricity you’re generating.
  • If you rent your property, you’ll need agreement from the landlord.
  • You have a suitable location to fit, most likely replacing your existing boiler. You can choose between fitting on a wall or on the floor. They are quite heavy, roughly twice the weight of normal boilers, so will need to be on a sturdy wall if you are using a wall.
  • That you size your unit correctly, as too large a unit will mean that you use it less, reducing how much electricity you are generating.
  • Currently the only available models run on mains gas or LPG so you will have to have access to this.
  • If you are looking to apply for FIT payments, check with your energy supplier to see whether they are signed up to the FIT scheme, as they will be paying you the FITs. Larger companies have to be a FIT supplier by law. You need to apply to your energy supplier to apply to the scheme.
  • Carrying out other building work at the same time could reduce your installation costs.

Just like installing a conventional boiler

Micro CHP systems usually take the same amount of time to install as a conventional boiler. The flow and return water pipes and gas connection connect just as they would in a normal boiler. The main difference is that you will need to attach an electrical connection.

Installer

We will only put you in touch with installers that use certified systems and are MCS accredited: Always use an MCS accredited installer. Only MCS accredited installers are able to sign off installations that will comply with the government’s Feed-In Tariff scheme.

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FAQs

What savings do micro CHP boilers produce?
Overall, micro CHP boilers use slightly more gas than standard boilers. However, the micro CHP generates enough electricity that total energy costs are reduced by 20%. Moreover, carbon dioxide (CO2) emissions per unit of electricity generated are over 50% lower than if the same amount of electricity were to be generated by a large power station.
How long does it take to recoup the additional costs associated with buying a micro CHP boiler (compared with a high-performance boiler)?
It is expected that the payback will be five years more, although this will depend on many factors, so it is difficult to give a definite answer.
Are micro CHP boilers easy to install?
Yes, installation is comparable to that of a high-performance boiler.
When does a micro CHP unit supply electricity?
The micro CHP boiler is controlled by a thermostat, just like your current boiler. When the unit's burner is running to heat the house, electricity is generated at the same time. When the burner is not running the unit will not produce electricity.
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