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2018 Boiler Guide

At Direct Heating Supplies we know that purchasing a boiler can be a rather daunting task, that is why we have put together a 2018 boiler guide to help you make a fully informed choice on your new boiler.

As much as boilers are often forgotten about until they are either due a service or something goes wrong, they are one of the most used appliances within our homes. Ensuring our families are kept warm and we have ample amounts of hot water when it is needed the most. With our 2018 boiler guide we have put together what you should look out for when purchasing a boiler, what the future of boilers holds and a quick round up of some of our favorite boiler models.

When it comes to boilers it’s important to remember that some will be more suited to your homes requirements than others, that is why we would always recommend discussing your boiler choice with your chosen engineer before making your purchase.

The Future of Boilers

New BoilerThe heating industry is ever changing and developing to make home heating more economical and user friendly. Technologies have developed in many areas including power outputs, boiler sizes, energy efficiency and warranties. Take a look below at each of the boiler features to see what you should look out for in 2018.

Going forward, the future of boilers is looking promising. Technologies are continuing to advance reducing carbon emissions further, and more research is being undertaken in to find low carbon alternative fuels instead of gas.

Power Output

Depending on your requirements and the number of bedrooms and bathrooms you have in your home will affect which power output you will require. Boilers on the market tend to range from sizes starting from a smaller 24Kw to a huge 42Kw.

Take a quick look below to find out what boiler output is suitable for your requirements:
Boiler Size Suitable For:

  • 24-27kW - Flats, apartments, and smaller homes with one bathroom and a maximum of 10 radiators
  • 28-34kW - Medium sized homes with up to 4 bedrooms, 1 bathroom and a maximum of 15 radiators
  • 35-42kW - For larger sized homes with up to 2 bathrooms and a maximum of 20 radiators

When it comes to choosing a boiler for your home we advise you seek the advice of a gas safe registered engineer before making your purchase.


Boilers are becoming more compact and much more ascetically appealing. Modern boilers have a smaller dimension in comparison to previous and older models, allowing them to be installed in a variety of locations including; garages, lofts, kitchens, hallways, bathrooms, gardens and even cupboards. So, you will be able to find a boiler for even the tightest of installation locations without taking up too much precious living space.

Efficiency Rating

The efficiency of all UK boilers is measured using the ErP directive, this ranks boilers A - G in terms of their efficiency. Giving homeowners an indication of the efficiency of each boiler in an average household setting. This can be a useful tool for homeowners who are looking at purchasing a new boiler, as well as a way for homeowners to establish their current boilers efficiency rating.


Warenty Boiler manufacturers offer varying warranties on their products ranging from 2-10 years, some offering extended warranties when installed by one of their approved engineers. Once your boiler has been installed, ensure your new boiler is registered with the manufacturer as this will activate your warranty. For most boiler warranties to be valid it is vital to have your boiler serviced annually. When it comes to your boiler warranty always read the terms and conditions and follow any terms set out in your warranty.

A-Z Guide of the Best Boilers

Take a look below at our A-Z of some of the top boilers and the leading models available to purchase today on the Direct Heating Supplies website.


Alpha is a highly recommended boiler brand among engineers around the UK, they are well known for their reliability and exceptional quality. Alpha’s most popular models include the Intect and the Intect 2, both of which have a number of market leading features including:

  • Standard warranties ranging from 4 to 7 years
  • Easy to use LCD display screen on the control panel
  • Frost protection
  • Compact size and layout
  • Easy access for servicing and maintenance
  • Easy installation for engineers

At Direct Heating Supplies we supply a great range of Alpha boilers, click here to browse our full selection today.


Baxi have been manufacturing boilers in the UK since 1866, providing homes with high efficiency boilers which are easy to install and maintain. Baxi designs and manufactures boilers to suit homes of all shapes, sizes and décor, so not only will you be purchasing a boiler which utilises the most recent technology, but it will look great at the same time. All Baxi Boilers come with a comprehensive warranty and are endorsed by the Energy Saving Trust, giving you full peace of mind about your purchase.

When it comes to selecting your new Baxi boiler for your home be sure to view our full range of available Baxi boilers, so you can find the perfect one for your needs. Some of our most popular Baxi models include the Eco Blue, Duo Tech, Megaflow and the Platinum all of which are available in a variety of sizes, outputs and Types.

Glow Worm

Established in 1934 Glow Worm are a well-recognised member of the energy and heating industry, providing customers with reliable and highly efficient boilers and heating accessories. Unlike many other boiler and heating manufactures, Glow Worm boilers are manufactured in their production facilities in Derbyshire, UK.

One of Glow Worms most popular models is the Energy model, which is available in a selection of heat outputs and boiler types. Glow Worms Energy model has many market leading features including:

  • Top and rear flue options
  • A high quality automotive grade aluminium heat exchanger
  • A modern easy to use LCD display screen
  • Manufactured to reduce noise levels
  • 5-year warranty as standard

Grant Vortex

Grant Vortext is known most for their award-winning oil fired condensing boilers and their reputation for high quality and innovation towards energy efficiency. All of Grant Vortex boilers are designed to be high performing, while also embracing latest technology to reduce home carbon emissions.

At Direct Heating Supplies one of the most popular Grant Vortex boilers is the Blue model, which is available in a selection of heat outputs and types. Grant Vortex have a unique offering of internal kitchen utility boilers, which are floor standing and perfect for kitchen use.

Heatrea Sadia

Heatrea Sadia are known for their 95 years of experience and expertise in water heating technology and electric heating products. At Direct Heating supplies we stock an extensive range of Heatrea Sadia electric boilers in many heating outputs, so you will be sure you will be able to find an electric boiler perfect for your needs. Heatra Sadia electric boilers have a number of market leading features including:

  • Works with standard radiators, programmers, room thermostats and heating equipment
  • Suitable for pressured or open vented systems
  • Models available for underfloor heating
  • No requirement for a flue
  • Flexible installation
  • Silent in operation
  • No requirement for an annual safety certificate


With over 100 years of experience in heating and manufacturing quality boilers, and being recommended in Good Housekeeping as “Reader Recommended for 2017”, Ideal have remained one of the industry leaders for domestic boilers. Ideal offer boilers for every size and style of home, so you will be sure to find one which meets your needs. All Ideal boilers provided through Direct Heating Supplies come with a 2 – 10 years parts and labour warranty as well as free and fast delivery.

At Direct Heating Supplies we supply an extensive range of Ideal Boilers all in variation of sizes and outputs, so you will be sure to find one which meets your requirements. Some of the most popular Ideal boiler models include the I-Mini, Logic, Independent and the latest Vogue. All of which offer a compact design, high efficiency and frost protection as standard.


Potterton have been manufacturing boilers since 1950, now being one of the most trusted boiler brands in the UK keeping over 7 million homes warm. Every boiler manufactured by Potterton incorporates the most up to date technology to ensure each boiler is energy efficient and user friendly.

Before leaving the Potterton factory every boiler must achieve a pass rate of 100% during extensive testing to guarantee its reliability and performance, so you can rest assured knowing your new Potterton boiler has been manufactured at the highest of quality. At Direct Heating Supplies we supply a wide range of Potterton boilers, the most popular being the Promax and Titanium range.


With over 140 years of experience in the heating industry Vaillant are pioneers, using advanced technology to ensure their boilers performance, quality and reliability. At Direct Heating Supplies we have an extensive range of Vaillant boilers, some of the most popular being the ecoTEC and the ecoFIT. Both the ecoTEC and ecoFIT have a number of revolutionary features which allow you to take full control of heating your home including:

  • High efficiency
  • A low energy usage setting
  • Stainless steel heat exchanger
  • Flexible installation
  • 2-5 year warranty as standard


With a wealth of experience, Vokera boilers are a popular choice among both homeowners and installers. With their boilers installed in over one and a half million homes across the UK and Ireland, Vokera is a well-known and well-respected name within the plumbing and heating industry. At Direct Heating Supplies we supply a fantastic collection of Vokera boilers ready for you to explore.

Worcester Bosch

With an enviable reputation in the market, Worcester Bosch boilers represent reliability and exceptional value for money. For the eighth year running, Worcester boilers have been awarded the title of Which? Best Buy. The award winning Greenstar range of boilers includes combination boilers, heat only regular boilers and system boilers, all of which are available in a selection of fuel types. The Worcester Greenstar range of boilers have a number of market leading features including:

  • High efficiency A rated
  • Compact design
  • Flexible installation and flue positioning
  • Simple and easy to use controls
  • Secured with the Royal Warrant

Looking at purchasing a new boiler in 2018? Browse our website today to view our full range of boilers. Don’t forget all boiler orders from Direct Heating Supplies receive free and fast delivery straight to your door.