FREE Boilers

Free Boilers in Paisley

In the realm of boiler installations in Paisley, Envirohomes Renewables stands out as one of the most respected and trusted names in Scotland. With a rich history of completing hundreds of boiler installations across the country, our track record is adorned with glowing online reviews that serve as a testament to our unwavering commitment to service excellence. Our team of certified boiler engineers possesses all the essential industry accreditations, including:

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

At Envirohomes Renewables, we are dedicated to more than just installations; we are committed to helping you reduce your energy bills, minimize your carbon footprint, and contribute to Scotland’s Net Zero goal. With our extensive experience and a highly skilled team, you can confidently rely on us to install your next boiler, ensuring safety and quality.

Our boiler installation service is centered around providing fully funded boiler installations to low-income households receiving benefits, thanks to the Government’s ECO 4 Grant. Below, we outline the eligibility requirements.

The ‘Free Boiler Scheme’ or ‘Free Boiler Replacement Scheme’ in Scotland falls under the umbrella of the government-funded ECO4 programme. This initiative sets out to combat fuel poverty, with a particular focus on assisting pensioners and low-income households by either upgrading their existing heating systems or installing new, more efficient boilers.

Who Qualifies For The Free Boiler Scheme?

For over a decade, both the UK and Scottish governments have been diligently providing free boiler grants and financial assistance to alleviate the burden of home energy costs across the UK. The Free Boiler grant, a pivotal component of the ECO4 boiler scheme, seeks to enhance energy efficiency in UK households. Eligible homeowners stand to benefit from free boilers or free boiler replacements when they meet specific criteria, including:

  • Total household income below £19,720 per annum.
  • Homeownership.
  • Receipt of benefits, such as Child Benefits and Income Support.
  • Pensioners aged over 60 years receiving Pension Credit Benefits or similar forms of support.
  • Possession of a gas boiler older than 15 years.
  • A boiler boasting an Energy Performance Certificate (EPC) rating of D or lower.
  • A malfunctioning or faulty boiler.

What is
The ECO4 Scheme?

The Energy Company Obligation 4 (ECO4) scheme represents the latest government policy aimed at enhancing energy efficiency in UK homes. Launched in April 2022, this scheme marks the fourth iteration in a series of government initiatives that commenced in 2013, following the conclusion of the ECO3 scheme in March 2022. ECO4 is slated to run until March 2026.

Distinguished by its comprehensive approach, the ECO4 scheme primarily focuses on upgrading heating systems in UK homes. While its primary objective is not to provide warmth, it plays a pivotal role in reducing carbon emissions, aligning with the UK’s ambitious goal of achieving carbon neutrality by 2050.

Since the inception of the ECO scheme in 2012, over 2.3 million homes have experienced the benefits of improved energy efficiency standards. The scheme’s primary legislation is designed to hold large energy companies accountable for supporting low-income households. This includes offering hardship grants to single parents, individuals with disabilities, and financially struggling families.

Entities like UK Energy Support collaborate closely with Ofgem, the UK’s energy regulator, and other energy suppliers to ensure strict adherence to ECO scheme standards. Local authorities play a crucial role in identifying eligible households that stand to benefit from this impactful initiative.

What does the ECO4 scheme cover?

The ECO4 scheme provides financial support that encompasses a broad spectrum of energy efficiency enhancements for UK homes. This includes:

  • Free boilers
  • Central heating systems
  • Boiler replacement
  • Solar panels
  • Air source heat pumps
  • Storage heaters
  • Various types of insulation grants, including 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, despite their minimal electricity requirements for ignition, are among the least eco-friendly options. They rely on natural gas, a fossil fuel, which, upon combustion, releases carbon dioxide (CO2) and other greenhouse gases into the atmosphere.
  • Efficiency: Older gas boilers typically exhibit a G-grade Energy Performance Certificate (EPC) rating, indicating modest energy efficiency at around 70%. While modern gas boilers have made efficiency improvements, they still lag behind the remarkable efficiency levels offered by combi boilers or heat pumps.
  • Regulatory Changes: In response to environmental concerns, gas boilers are subject to stringent regulations, necessitating efficiency ratings of 86% or higher. These regulations may pave the way for the gradual phasing out of traditional gas boilers.

Back boilers

  • Environmental impact: Back boilers, often older models, suffer from high inefficiency, typically hovering around 78%. In contrast, modern combi boilers offer efficiency levels exceeding 90%. Despite their historical popularity in the 60s and 70s, back boilers produce higher emissions, especially when installed behind fireplaces. Additionally, any leaks from back boilers can pose a risk of carbon monoxide poisoning.
  • Outdated: With the diminishing availability of parts and their inherent inefficiency, back boilers are less sustainable for long-term use.
  • Regulatory Changes: Government regulations now mandate an 86% efficiency rating for new boiler installations, effectively rendering back boilers obsolete.

Oil boilers

  • Environmental impact: Oil boilers operate on heating oil,  another fossil fuel, releasing substantial amounts of CO2 and sulfur dioxide during the heating process. This contributes to air pollution and greenhouse gas emissions.
  • Efficiency: Older non-condensing oil boilers exhibit efficiency rates ranging from 60% to 70%. In contrast, modern oil boilers have made significant efficiency strides, achieving rates exceeding 90%. Despite these improvements, oil boilers still lag behind in terms of eco-friendliness.

Which Types Of Boilers
Are Eco-Friendly?

Combi boilers

Combi boilers, short for combination boilers, represent a highly efficient heating unit that integrates seamlessly with central heating systems. These boilers heat water directly from the mains, eliminating the need for a separate water storage tank. Notable features of combi boilers include:

  • Space-saving design, particularly beneficial for smaller homes.
  • Exceptional energy efficiency, boasting over 90% efficiency ratings.
  • On-demand hot water, eliminating the need for separate water tanks and reducing heat loss.
  • Simple installation and lower maintenance requirements.

Heat Pumps

To distinguish them from boilers, it’s important to clarify that heat pumps do not generate heat or rely on fossil fuels. Instead, they excel at transferring heat from one location to another. They seamlessly integrate with various distribution systems, including ductwork, radiators, or underfloor heating. Heat pumps can either extract heat from the outdoor environment to warm indoor spaces or provide cooling by reversing the process.

Key attributes of heat pumps encompass:

  • High energy efficiency, with the flexibility to operate on electricity or renewable energy sources such as solar panels and wind power.
  • Zoning capabilities in select heat pump systems, enabling precise temperature control in different areas of a home.
  • Compatibility with existing central heating systems, enhancing overall efficiency.

Two primary types of heat pump systems designed for central heating purposes include:

  • Air-Source Heat Pumps: These are the most prevalent type of heat pumps, effectively transferring heat between indoor and outdoor air. They are generally easier to install and offer a cost-effective solution.
  • Ground-Source Heat Pumps: These innovative systems harness the consistent temperature of the ground as a heat source. Although they deliver superior efficiency, their installation is more complex and often comes with a higher cost.

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


Yes, the Free Boiler Grant falls under the ECO scheme. The ECO scheme extends financial support to eligible households, making them eligible for a free boiler or boiler replacement, central heating systems, free solar panels, heat pumps, and more.

While combi boilers offer numerous benefits, there are a few drawbacks to consider before installation. The most notable limitation is that these boilers may struggle when there is a high demand for hot water in a household. Simultaneous use of hot water in multiple locations, such as two people showering in different bathrooms, may result in reduced water pressure. This is attributed to the absence of a backup tank, which is a feature of conventional boilers designed to meet high water demands.

Benefits play a pivotal role in determining eligibility for the Free Boiler grant; however, you may still qualify even if you do not receive any benefits. Envirohomes Renewables can provide guidance and assistance to help determine your eligibility for a free boiler under the ECO4 scheme, regardless of your benefits status.


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