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If you’re planning to install a new boiler, one of the key considerations is how much space it will require. Whether you’re upgrading to a more efficient system or replacing an old unit, ensuring your boiler fits comfortably in your home in Wothing is essential.

At NJ Lees, we specialise in boiler installation in Worthing and across West Sussex, helping homeowners choose the right boiler for their space. In this guide, we’ll explore the different types of boilers and the space requirements for each.

Understanding Different Boiler Types

The amount of space you need for your boiler depends on the type of system you choose. There are three main types of boilers:

1. Combi Boilers (Combination Boilers)

✅ Ideal for small to medium-sized homes
✅ No separate water tank required
✅ Typically fits in a kitchen cupboard

Combi boilers are the most compact option as they don’t require a separate hot water cylinder or cold water storage tank. If you’re looking for a space-saving solution, a combi boiler can often be installed inside a standard kitchen cupboard, making it a popular choice for smaller properties.

2. System Boilers

✅ Best for medium to large homes
✅ Requires a separate hot water cylinder
✅ Needs an airing cupboard or similar space

System boilers are slightly larger than combi boilers as they need a separate hot water cylinder. However, they don’t require a cold water tank in the loft, making them a good option for homes with higher hot water demand but limited loft space. The cylinder is typically stored in an airing cupboard or another discreet location.

3. Regular (Conventional) Boilers

✅ Suitable for large homes with multiple bathrooms
✅ Requires both a hot water cylinder and a cold water tank
✅ Needs loft space and an airing cupboard

Regular boilers (also known as conventional or heat-only boilers) take up the most space because they require both a hot water cylinder and a cold water storage tank in the loft. They are usually only necessary for larger homes with high hot water demand. If you’re replacing an old system, you may already have the necessary space allocated.

Space Requirements for a Boiler Installation

While boiler sizes vary depending on the model and manufacturer, here’s a general guide to the space you’ll need for installation:

🔹 Combi Boiler: 70cm (height) x 40cm (width) x 30cm (depth) – typically fits in a kitchen cupboard.
🔹 System Boiler: 70cm x 40cm x 30cm (boiler) + space for a separate hot water cylinder.
🔹 Regular Boiler: Similar to a system boiler, but also requires additional loft space for a cold water tank.

It’s also important to leave adequate clearance around the boiler for servicing and maintenance. Most manufacturers recommend leaving at least 50mm of space around the boiler and 600mm in front for easy access.

Where Should You Install Your Boiler?

When choosing a location for your new boiler, consider:

🔸 Kitchen: Combi boilers often fit inside a cupboard, keeping them out of sight.
🔸 Utility Room: A good option if you want to keep noise levels low in the kitchen.
🔸 Airing Cupboard: Ideal for system and regular boilers that need a hot water cylinder.
🔸 Garage or Loft: Possible for certain models, but may require additional insulation to prevent freezing.

If you’re unsure where to install your boiler, our expert engineers at NJ Lees can assess your home and recommend the best location for efficiency and practicality.

Need a New Boiler Installed? Contact NJ Lees!

If you’re looking for a new boiler in Worthing, NJ Lees is here to help. Our experienced team of heating engineers can guide you through choosing the right boiler for your home, ensuring it’s installed safely and efficiently.

Let NJ Lees take care of your heating needs – trust us for reliable, professional boiler installation in Worthing and beyond! Contact us today.