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Exploring the different types of Grant Oil Boilers and their heating capacities

When it comes to heating your home efficiently and economically, Grant Oil Boilers are a popular choice among homeowners. They are known for their reliability, energy efficiency, and ability to provide consistent warmth throughout the year.

However, there isn’t a one-size-fits-all Grant oil boiler; they come in various types, each with its unique strengths and heating capacities.

So let’s take a look at the different types of Grant oil boilers and look at how many radiators each strength is roughly capable of heating (there are other factors at play here in deciding what size is best including the size of the house, ventilation and insulation in place etc).

Grant Vortex Internal (Indoor) Boilers

The Grant Vortex Internal range of oil boilers is designed for indoor installation and offers excellent heating efficiency. They come in various heating outputs, typically ranging from 15kW to 36kW, and are suitable for small to medium-sized homes. Here’s a rough estimate of the number of radiators each strength can efficiently heat:

  • 15kW: Suitable for homes with up to 10 radiators.
  • 21kW: Appropriate for homes with up to 15 radiators.
  • 26kW: Capable of heating homes with up to 20 radiators.
  • 36kW: Ideal for larger homes with up to 25 radiators.

Grant Vortex External (Outdoor) Boilers

Grant’s Vortex External boilers are designed for outdoor installation, making them a great choice for homeowners who want to save space indoors. These boilers are also available in various heating outputs, typically ranging from 15kW to 36kW. Their heating capacities in terms of radiators are similar to their internal counterparts:

  • 15kW: Suitable for homes with up to 10 radiators.
  • 21kW: Appropriate for homes with up to 15 radiators.
  • 26kW: Capable of heating homes with up to 20 radiators.
  • 36kW: Ideal for larger homes with up to 25 radiators.

Grant Vortex External Wall-Hung Boilers

Grant Vortex External Wall-Hung boilers are perfect for homes with limited outdoor space. They offer heating outputs ranging from 15kW to 36kW and can efficiently heat the following number of radiators:

  • 15kW: Suitable for homes with up to 10 radiators.
  • 21kW: Appropriate for homes with up to 15 radiators.
  • 26kW: Capable of heating homes with up to 20 radiators.
  • 36kW: Ideal for larger homes with up to 25 radiators.

Grant Vortex Pro Utility Boilers

The Grant Vortex Pro Utility boilers are versatile and suitable for a wide range of heating needs. These boilers have heating outputs ranging from 15kW to 70kW, making them suitable for both residential and commercial applications. The number of radiators each strength can heat varies:

  • 15kW to 35kW: Suitable for homes with up to 25 radiators.
  • 50kW to 70kW: Ideal for larger properties or commercial use with varying radiator numbers.

What is a condensing oil boiler?

You might have seen the term ‘condensing oil boiler’ and wondered what that is or what makes that different from a standard oil boiler.

The primary difference between a condensing oil boiler and a standard oil boiler is their efficiency. Condensing boilers are more efficient, environmentally friendly, and cost-effective over the long term, while standard boilers are less efficient and may result in higher fuel consumption and emissions.

When considering a new oil boiler, it’s essential to evaluate your specific heating needs, budget, and environmental concerns to determine which type of boiler is the best fit for your home.

Grant oil boilers come in various types and strengths, each tailored to specific heating requirements. Whether you have a small, medium, or large property, there’s likely a Grant oil boiler that can efficiently heat your home.

It’s crucial to consult with a heating professional to determine the right boiler size for your needs, as factors such as insulation, room size, and climate can influence the number of radiators a boiler can effectively heat.

By choosing the right Grant oil boiler, you can enjoy a comfortable and energy-efficient heating solution for your home.

We offer the full range with fast delivery throughout Ireland and also have all the flue kits and sections you might need – just call us anytime on 0818 888 000 if you need any help at all.

  • Grant Vortex External Oil Boiler 90-120 (26-36kw)

    Grant Vortex Condensing Module 90-120 (26-36kw) Oil Boiler

    Key features:

    • High Efficiency rating
    • Trusted brand
    • 26-36kW Power Output
    • Ideal when space is at a premium
    2,210.00 (Inc. VAT)
  • Grant Vortex Boilerhouse Oil Boiler 50-90 (15-26kw)

    Grant Vortex Condensing Oil Boiler Boiler House 50-90

    Key features:

    • Highly efficient Oil Boiler
    • Trusted brand
    • 50-90 model with 15-26kW Power Output
    • Easy to install
    • Ideal for use in house that is under 2500 square foot
    1,549.95 (Inc. VAT)
  • Grant Vortex Boilerhouse Oil Boiler 90-120 (26kW-36kW)

    Grant Vortex Oil Boiler Boilerhouse 90-120 (26kW-36kW)

    Key features:

    • High efficiency SEAI HARP “A” Rating
    • Trusted brand
    • 90-120 model (26-36kW)
    • Easy to install
    1,699.36 (Inc. VAT)
  • Grant Vortex External Oil Boiler 50-90 15-26kw

    Grant Oil Boiler Vortex Outdoor Condensing Module 50-90 (15-26kw)

    Key features:

    • Highly efficient free standing external Oil Boiler
    • Trusted brand
    • Features a Riello RDB Burner
    • Includes a factory fitted frost thermostat preset to 2°C
    1,839.95 (Inc. VAT)
  • Firebird Slimline Boiler C26

    Firebird Silver Slimline Systempac C26

    Key features:

    • Silver Model
    • Quick Installation Time
    • Pre-Plumbed Range
    • Reliable Firebird brand
    1,815.00 (Inc. VAT)
  • Grant Vortex Utility Condensing Indoor Oil Boiler

    1,929.872,888.04 (Inc. VAT)
    Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Vortex Utility Condensing Indoor Oil Boiler

    Grant Vortex Indoor Utility Free Standing Oil Boiler

    Key features:

    • High efficiency range of free standing indoor condensing oil boilers
    • Designed for utility and kitchen installation
    • Range of sizes available
    • A Energy Rating
    • One of the most efficient oil boiler on the market today.
    1,929.872,888.04 (Inc. VAT)
  • Grant Euroflame Boiler House Oil Boiler

    1,349.501,595.00 (Inc. VAT)
    Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Euroflame Boiler House Oil Boiler

    Euroflame Boiler House Oil Boiler

    Key features:

    • High quality economical Boiler House Oil Boiler range
    • High efficiency SEAI HARP ‘A’ Rating
    • Suitable for balanced or conventional flue application
    • Compact design supplied with factory fitted blue insulated jacket
    • Fully approved to OFTEC Standard and EC directives
    1,349.501,595.00 (Inc. VAT)
  • Grant Vortex Indoor Combi Oil Boiler

    3,090.993,316.08 (Inc. VAT)
    Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Vortex Indoor Combi Oil Boiler

    Indoor Combi Oil Boiler from Grant

    Key features:
    • Highly efficient indoor combi oil boiler with A rating
    • Offers instant production of hot water
    • Cost effective installation
    • Unique drop-down control panel for ease of servicing
    3,090.993,316.08 (Inc. VAT)
  • Grant Vortex Boilerhouse Oil Boiler 120-155 (36-46kw)

    Grant Vortex Condensing Oil Boiler Boiler House 120-155

    Key features:

    • Highly efficient Oil Boiler
    • Trusted brand
    • 120-155 model with 36-46kW Power Output
    • A Energy rating
    • Easy to install
    2,177.10 (Inc. VAT)
  • Grant Euroflame Outdoor Condensing Oil Boiler

    1,672.801,998.75 (Inc. VAT)
    Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Euroflame Outdoor Condensing Oil Boiler

    Grant Euroflame Outdoor Boilers

    Key features:

    • Great value free standing economical condensing boiler
    • Incorporates a new version of the Grant Vortex stainless steel heat exchanger
    • Extremely efficient with an A rating
    • Comes complete with a factory fitted multi-directional flue
    • Optional side or rear flue exits

    Enter Eircode at checkout for delivery pricing.

    1,672.801,998.75 (Inc. VAT)
  • Grant Vortex Combi Oil Boiler (outdoor)

    3,210.003,485.00 (Inc. VAT)
    Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Vortex Combi Oil Boiler (outdoor)

    Outdoor Combi Oil Boiler from Grant

    Key features:

    • Highly efficient condensing outdoor oil boiler with A energy rating
    • Offers instant hot water production on demand
    • Provides cost effective installation
    • Comes complete with a factory fitted multi-directional flue
    • Powder coated
    • Unique drop-down control panel for ease of servicing
    3,210.003,485.00 (Inc. VAT)
  • Shop options This product has multiple variants. The options may be chosen on the product page

    Grant Euroflame Indoor Condensing Oil Boiler

    Indoor Oil Boilers – Grant Euroflame

    Key features:

    • High quality and great value Condensing Oil Boiler
    • Oil boiler designed for utility and kitchen installation
    • Incorporates a new version of the Grant Vortex stainless steel heat exchanger
    • Extremely efficient having achieved an SEAI HARP ‘A’ & SEDBUK ‘A’ Rating
    1,841.31 (Inc. VAT)

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