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Writer's pictureTerry Matthews

The Truth About Open Fires and Heat Loss – Tips from a Heating Engineer in Haywards Heath

As winter rolls in here in Haywards Heath, West Sussex, there’s nothing quite like curling up in front of an open fire. At Matthews Plumbing and Maintenance, we’ve always loved the coziness and charm of an open fire. There’s just something magical about the crackle of logs and the warmth of those dancing flames. It’s that beautiful mix of tradition and comfort that draws people in. I, too, have an open fire in my home, and I completely understand why so many of us in Haywards Heath enjoy that aesthetic.

But as a heating engineer, it’s also my job to be realistic about how we keep our homes warm, and unfortunately, the open fire comes with its downsides—especially when it comes to energy efficiency. So today, let’s talk about the facts surrounding heat loss with open fires and how you can minimize the impact without sacrificing that comforting glow. Understanding the facts about open fire heat loss Haywards Heath can help you make smarter heating decisions.

Open fire in haywards heath - heat loss facts

Open Fire Heat Loss Haywards Heath – The Facts

The aesthetics of an open fire are hard to beat, but from an efficiency perspective, they are one of the least practical heating solutions for your home. Studies show that up to 90% of the heat produced by an open fire escapes straight up the chimney. This means that only about 10% of the energy you’re putting into burning those logs actually makes it into your living space to warm you up. Essentially, you’re losing the vast majority of your heat before you even feel it.

This loss isn’t just when the fire is burning—when it’s out, an open chimney continues to be a source of heat loss. Warm air from your home naturally rises, and an open chimney provides an easy escape route. In fact, it’s estimated that up to 30% of your home’s heated air can be lost through an open chimney when the fire isn’t in use. This means that even when you’ve put the fire out, your home is still losing warmth, which not only makes your home colder but also drives up your heating bills.



Do you have a fire?

  • Yes Gas

  • Yes Open fire

  • Yes, Log burner

  • No, I do not.



How to Minimize Heat Loss

As someone who enjoys the look and feel of an open fire, I know how important it is to strike a balance between aesthetics and efficiency. Here are a few steps you can take to reduce the heat loss from your open fireplace while still enjoying that beautiful glow:

1. Use a Chimney Balloon or Chimney Damper

One of the best ways to stop warm air escaping when your fire isn’t in use is by using a chimney balloon or chimney damper. These devices can be easily installed when the fireplace is cool and effectively block the airflow in and out of the chimney. This helps retain the warm air inside your home, reducing the amount of heat lost during those times when the fire isn’t lit.

2. Close the Fireplace Doors

If your fireplace has glass doors, make sure they are closed when the fire is not burning. This creates an additional barrier to prevent the loss of heated air up the chimney. Even when the fire is burning, partially closing these doors can help keep some of the heat inside while still allowing you to enjoy the view of the flames.

3. Install a Fireback

A fireback is a metal plate that sits at the back of your fireplace, and it serves two key purposes: it protects the structure of the fireplace from heat damage and reflects some of the heat back into your room. This can increase the efficiency of your open fire and help direct more of that valuable warmth into your living space.

4. Consider an Insert

If you’re really looking to improve the efficiency of your open fire while keeping the charm, consider installing a fireplace insert. Inserts are designed to fit inside your existing fireplace and convert it into a much more efficient heating source. They can drastically improve heat retention and distribution, meaning you’ll get much more warmth for every log burned.

Balancing Aesthetics and Practicality

I get it—there’s something almost therapeutic about an open fire, especially during a cold winter evening in West Sussex. I, too, enjoy the aesthetics, but from my perspective as a heating engineer in Haywards Heath, I know how crucial it is to also think about efficiency and energy savings. An open fire can be a lovely occasional treat, but it’s not ideal as your main heating source.

Need Professional Help with Your Heating in Haywards Heath?

At Matthews Plumbing and Maintenance, we’re dedicated to helping our local community make smart choices about home heating, whether it’s installing a new boiler, maintaining your system, or providing tips on how to get the most from your open fire. If you’re based in Haywards Heath or the surrounding areas and need help improving your home’s heating efficiency, feel free to reach out. Let’s keep our homes cozy, safe, and efficient this winter.

Contact us today for more practical advice or to schedule a consultation about your heating system.

Matthews Plumbing and Maintenance – Keeping Haywards Heath Warm, One Home at a Time. An open fire can be a lovely occasional treat, but it’s not ideal as your main heating source.

If you want to enjoy the best of both worlds—those cozy fireside moments and a warm, energy-efficient home—taking these small steps to reduce heat loss can make a big difference. By investing in something as simple as a chimney balloon or even exploring more efficient inserts, you can make sure you get all the warmth without the waste.

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