The Great Hydrogen Boiler Conspiracy

As one of the UK's most enthusiastic followers of hydrogen fuel cell boilers, there's a risk we could be very biased on the subject of hydrogen. If hydrogen does take off, we could absolutely clear up. But our approach is all about science, maths and truth, not conjecture — and that's exactly what tells us whether hydrogen really is the way to go. Or is it?

The big battle over how we heat our homes

There's currently a big battle in the UK between the electrification of heat and switching our natural gas grid — which is probably what your boiler runs on today — over to hydrogen. It's all in the name of reducing our carbon dioxide output to slow down climate change. That electrification-or-hydrogen argument could apply to transport and industrial processes too, but here we're really only looking at heating the home.

That means it boils down to two technologies and two fuel sources. On one side, hydrogen to power a hydrogen-burning boiler. On the other, electricity to power a heat pump. The reason we're being pushed to move away from what we have is simple: your current boiler burns natural gas, and that releases around 215 grams of carbon dioxide for every kilowatt hour it burns.

What hydrogen heating actually looks like today

At the moment there's really only one commercially available hydrogen technology for the home, and that's the Vitovalor hydrogen fuel cell. It's clever kit, and it's the sort of product that makes the hydrogen future sound just around the corner. But before anyone rips out a perfectly good boiler in anticipation, it's worth being honest about where this technology is, what fuel it would actually run on, and how it stacks up against the alternative.

The headline question is whether hydrogen can be produced, delivered and burned cleanly and affordably enough to make it a genuinely better choice than simply running an air source heat pump on electricity. That's the comparison that matters for a real home in a real street, not a press release.

Hydrogen boiler or heat pump?

For most homeowners, the practical decision over the next few years won't be a grand national-infrastructure question — it'll be what to do when the existing boiler finally gives up. Today, a heat pump is a proven, installable technology you can put in now, while a hydrogen-ready home heating system is still largely a future promise. We think it's our job to tell you that plainly rather than sell you a story.

We'd far rather give you the honest maths than the marketing. If you're weighing up your options, the best thing you can do is talk to an installer who'll look at your actual home and your actual bills. If you'd like that, get in touch for a free, no-obligation quote and we'll talk you through what genuinely makes sense for your property.

This article accompanies our video on the subject — watch the video for the full breakdown of the science and the numbers.