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Frequently Asked Questions

ECO4 Boiler Grant Scheme FAQs

The ECO4 scheme is a government-backed program designed to improve energy efficiency in UK homes. It helps low-income households by offering grants for energy-saving measures, such as free or heavily subsidized boiler replacements.

You may be eligible if:

  • You receive certain government benefits like Universal Credit or Pension Credit.
  • Your household income falls below a specific threshold.
  • Your property has a low Energy Performance Certificate (EPC) rating (typically D, E, F, or G).
  • You own or privately rent a home with an old or broken boiler.

Applicants usually need:

  • Proof of benefits or income.
  • Proof of address.
  • Details of the existing boiler.
  • EPC report or access to property energy performance data.

Yes, the grant typically covers the full cost of both the boiler unit and its professional installation. This means many qualifying households receive a new boiler at no cost.

Generally, energy-efficient condensing boilers (combi or system boilers) are installed to replace older, inefficient models. The type depends on the property’s requirements.

The process usually involves:

  • Checking eligibility through a questionnaire or assessment.
  • Contacting an approved ECO4 installer or provider.
  • Undergoing a home assessment.
  • Proceed with installation if approved.
The entire process—from application to installation—can take 2 to 6 weeks, depending on demand, documentation, and scheduling availability.

If your application is rejected, you may:

  • Appeal or request a reassessment.
  • Check eligibility for other schemes or local grants.
  • Explore low-interest finance options for boiler replacement.
The scheme is reviewed annually. Updates may include changes in eligibility criteria, funding availability, or approved technologies.

Yes, other options may include:

  • Local council heating assistance programs.
  • The Boiler Upgrade Scheme (BUS) for renewable heating systems.
  • Affordable finance or energy company initiatives.

Boiler Maintenance & Aftercare FAQs

Your boiler, serviced annually, is recommended to maintain efficiency, prevent breakdowns, and uphold the warranty.

Look out for

  • Unusual noises (banging, whistling).
  • Leaks or drips.
  • Low boiler pressure.
  • No hot water or heating.

You can increase your boiler’s lifespan by:

  • Scheduling annual services.
  • Keeping pressure at recommended levels.
  • Using inhibitor chemicals in the system.
  • Install a magnetic filter to trap sludge and debris.

Key tasks include:

  • Checking for leaks.
  • Inspecting pressure levels.
  • Bleeding radiators.
  • Cleaning filters and flue.
  • Examining the pilot light or ignition system.

Try these steps:

  • Check the power and gas supply.
  • Repressurize the boiler if needed.
  • Reset the boiler following the manufacturer’s instructions.
  • Contact a certified engineer if the issue persists.

Boiler Installation FAQs

To prepare:

  • Clear access to the boiler location.
  • Remove valuables and obstructions from the work area.
  • Ensure someone is home during installation.
  • Inform the installer of any known heating system issues.

A typical boiler installation takes 1 to 2 days, depending on complexity and whether it’s a straight replacement or a complete system upgrade.

Possibly. Changes may include upgrading pipework, relocating the boiler, or modifying flue routes for safety and efficiency compliance.

Yes, but it’s advised to stay clear of work areas and ensure children or pets are kept away for safety.

Choosing a Certified Installer FAQs

Certified installers ensure that the installation meets legal safety standards and quality guidelines, and that you’re eligible for funding.

Installers should be:

  • TrustMark registered.
  • Gas Safe registered (for gas boilers).
  • Compliant with PAS 2035 standards.
Yes, but they must be approved under the ECO4 framework. Using an unapproved installer may disqualify you from funding.

Ask about:

  • Their certifications and registrations.
  • Whether they handle the ECO4 application process.
  • Installation warranties and aftercare.
  • Previous customer feedback or case studies.
Yes, it’s always a good idea to compare services, pricing, and customer reviews to make an informed choice.

General & Additional FAQs

Most boiler grants focus on full replacements rather than minor repairs. However, some local programs or emergency funds may offer repair assistance for low-income households.
While ECO4 mainly covers gas boiler replacements, other programs like the Boiler Upgrade Scheme may support low-carbon systems like heat pumps or biomass boilers.

Signs include:

  • High energy bills.
  • Regular breakdowns.
  • An EPC rating of D or lower.
  • Age of the boiler (typically 10+ years).
Yes, landlords can apply if the tenant meets eligibility criteria and the property has a qualifying EPC rating. Permission from the tenant may be required.
FTCH is a funding subcategory for homes without a central heating system. It may include the installation of both a boiler and a radiator network.