FREE Boilers
Isle of Arran

Free Boilers Isle of Arran

Envirohomes Renewables stands as a prominent name in Scotland, celebrated for its excellence in boiler installations. With a track record of hundreds of successful installations, our outstanding online reviews are a testament to the exceptional service we provide. Our team of qualified boiler engineers holds key industry accreditations, including:

  • Qualitymark Protection
  • Gas Safe Register
  • PAS 2030 Certification
  • Elmhurst Energy Assessment Accreditation

At Envirohomes Renewables, our mission revolves around lowering energy bills, reducing carbon footprints, and contributing to Scotland’s Net Zero goal. With our extensive experience and highly skilled team, you can rely on us for the safe installation of your next boiler.

Our boiler installation services are dedicated to benefiting low-income households receiving government assistance through the ECO 4 Grant. This grant program is part of the government-funded ECO4 scheme, aimed at addressing fuel poverty, particularly among pensioners and lower-income households. The primary focus is on upgrading heating systems and installing new boilers to enhance energy efficiency.

Who Qualifies For The Free Boiler Scheme?

For over a decade, both the UK and Scottish governments have offered free boiler grants and financial assistance for energy-efficient home improvements across the country. The Free Boiler grant, falling under the ECO4 boiler scheme, aims to provide energy-saving solutions to eligible homeowners. To qualify, certain criteria must be met, including:

  • Total household income of less than £19,720 per annum.
  • Homeownership.
  • Receipt of benefits (such as Child Benefits and Income Support).
  • Pensioners (over 60 years old) receiving Pension Credit Benefits or similar.
  • Current gas boiler aged over 15 years.
  • Boiler with an Energy Performance Certificate (EPC) rating of D or lower.
  • Broken or faulty boiler.

What is
The ECO4 Scheme?

The Energy Company Obligation 4 (ECO4) scheme represents the latest government policy aimed at boosting energy efficiency in homes throughout the UK. Launched in April 2022, ECO4 is the fourth iteration of a series of government initiatives that began in 2013, succeeding ECO3, which ended in March 2022. ECO4 is scheduled to run until March 2026.

ECO4 takes a comprehensive approach to energy efficiency, primarily focusing on upgrading heating systems in UK homes. While it doesn’t aim to provide warmth directly, its primary goal is to reduce carbon emissions, aligning with the UK’s target to achieve carbon neutrality by 2050. Since the inception of the ECO scheme in 2012, over 2.3 million homes have benefited from improved energy efficiency standards.

What does the ECO4 scheme cover?

The ECO4 scheme offers financial support that covers a wide range of energy efficiency improvements for UK homes, such as:

  • Free boilers
  • Central heating systems
  • Boiler replacement
  • Solar panels
  • Air source heat pump
  • Storage heaters
  • Various types of insulation grants (e.g. loft, underfloor, external and internal wall, cavity wall, and roof insulation)

What boilers can you get under the Free Boiler grant?

  • Conventional boilers
  • Combi boilers
  • System boilers
  • Air-source heat pumps

Which Types Of Boilers
Are Not Eco-Friendly?

Gas boilers

  • Environmental Impact: Gas boilers, while requiring minimal electricity for ignition, are among the least eco-friendly types. They rely on natural gas, a fossil fuel, whose combustion releases carbon dioxide (CO2) and other greenhouse gases into the atmosphere

    Efficiency: Older gas boilers have a G-grade Energy Performance Certificate (EPC) rating, indicating only 70% energy efficiency. Although modern gas boilers have improved, they still lag behind combi boilers or heat pumps in terms of efficiency.

    Regulatory Changes: Due to environmental concerns, gas boilers are subject to stringent regulations, including the requirement for an 86% or higher efficiency rating, potentially leading to their phased-out future.

Back boilers

Environmental Impact:: Back boilers, prevalent in the 60s and 70s, are outdated and highly inefficient (around 78%) compared to modern alternatives like combi boilers (over 90%). They tend to produce higher emissions, especially since they are typically installed behind fireplaces. Leaks can also pose a risk of carbon monoxide poisoning.

Outdated: The inefficiency and phasing out of back boilers have led to scarce parts availability, making them less sustainable for long-term use.

Regulatory Changes: New boiler installations must comply with government regulations, including an 86% efficiency rating, rendering back boilers obsolete

Oil boilers

Environmental Impact: Oil boilers run on heating oil, another fossil fuel, emitting significant CO2 and sulfur dioxide into the atmosphere during the heating process, contributing to air pollution and greenhouse gas emissions.

Efficiency: Older, non-condensing oil boilers typically operate with efficiency rates of 60-70%. Although modern versions have improved to over 90% efficiency, they still lag in eco-friendliness compared to other heating options.

Which Types Of Boilers
Are Eco-Friendly?

Combi boilers

A combi boiler, short for combination boiler, serves as a highly efficient heating unit and central heating system in one. These boilers heat water directly from the mains, eliminating the need for a separate water storage tank. Their compact size is particularly advantageous for smaller homes.

Notable Features:

  • Space-saving design
  • High energy efficiency
  • On-demand hot water
  • Simple installation and reduced maintenance

Heat Pumps

In contrast to boilers, heat pumps operate differently by not generating heat themselves and avoiding the use of fossil fuels. Instead, they function as heat transfer devices, capable of seamlessly integrating with various heating distribution systems such as ductwork, radiators, or underfloor heating. Their efficiency lies in their ability to extract heat from the external environment for heating and vice versa for cooling purposes.

Heat pumps predominantly rely on electricity as their power source, but they also have the flexibility to operate on sustainable energy sources like solar or wind power. This versatility significantly enhances their energy efficiency, making them a sustainable and eco-friendly choice in the long run.

Key Benefits of Heat Pumps:

  1. Zoning Flexibility: Certain heat pump models come equipped with zoning capabilities, enabling independent temperature control in different areas of your home.

  2. Integration with Existing Systems: Heat pumps can be seamlessly integrated into your current central heating systems, enhancing overall efficiency and performance.

Types of Heat Pump Systems for Central Heating:

1. Air-Source Pumps: These are the most commonly used heat pumps and facilitate the exchange of heat between indoor and outdoor air. They are known for their ease of installation and cost-effectiveness.

2. Ground-Source Pumps: Harnessing the stable temperature of the ground, these pumps offer higher efficiency but are associated with higher upfront costs and installation complexity due to the need for ground loop installation.

What Are The Advantages Of An Eco-Friendly Combi Boiler?


Yes, the Free Boiler Grant in Scotland falls under the ECO scheme. The ECO scheme provides funding to eligible households, allowing them to qualify for a free boiler or boiler replacement, central heating systems, solar panels, heat pumps, and more.

While combi boilers offer numerous benefits, they do have some limitations to consider. One prominent issue is their performance under high water demand. If multiple users require hot water simultaneously, a combi boiler may struggle to maintain water pressure since it lacks a backup tank like traditional boilers

While benefits are a crucial criterion for Free Boiler grant eligibility, you may still qualify even if you don’t receive benefits. Envirohomes Renewables can assist in determining your eligibility under the ECO4 scheme, regardless of your benefit status.

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