How do I bathroom / kitchen / extension? etc.

You went for mid-grey right?

Yep khaki valchromat 🤌

Of course, I'm not mad.

As I said, the problem with hydrogen is its expensive to produce which is the issue although there is some big manufacturers running trials in england using hydrogen. So if manufacturers are looking to put money into something it might happen.

Who knows what will happen, district heating and ASPH aren't the best alternatives for retro fitting that's the issue right now. But then again they told my dad when he was an apprentice that gas would run out in the 80's and were still using it, so who knows when it will end.

Mutually assured destruction is the only way this century will end.

Instead, existing independent research so far suggests that, compared to other alternatives such as heat pumps, solar thermal and district heating, hydrogen use for domestic heating is less economic, less efficient, more resource intensive, and associated with larger environmental impacts.

Sounds nailed on that this is the option we'll go for.

👀

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Given that 95% of the world's hydrogen is currently derived from fossil fuels, I can see this happening. Shell and BP will be happy.

I looked into a hydrogen boiler for a client although input from a specialist at the time (2020) put an end to that. Key points:

• Operating on green hydrogen would result in zero carbon emissions although this is costly and most hydrogen available commercially is refined from natural gas.
  
• Unlikley to deliver the desired reduction in emissions unless run on green hydrogen.
  
• Fuel cell can have a limited lifespan due to impurities in gas supply. Some systems require replacement of the main stack every 5 years to mainain efficiency.
  
• Domestic storage of hydrogen is not really a feasible option.
  
• Recommendation to have a backup gas boiler [thumbsup.gif].
  
  

So yeah, I imagine there will be a big push from Shell, BP and the other Fossil Fuel Boys in time to come.

#bringbackrep

😂

I'm really keen to ditch fossil fuels.

This thread moves quickly in 17h but in the hierarchy of how to ditch fossil fuels, reducing energy demand/consumption is the first one - ie. Insulate and draught-proof. Heat escapes through conductive (uninsulated) walls and roof, and warm air escapes through leaks and draughts. Both ways lose heat. There's no point switching until this is fixed.

I may have shared this here before but for folk interested in retrofitting insulation and draught proofing, this is a really excellent and comprehensive guide.

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• Guide+to+Domestic+Retrofit (1).pdf

This thread moves quickly in 17h but in the hierarchy of how to ditch fossil fuels, reducing energy demand/consumption is the first one - ie. Insulate and draught-proof. Heat escapes through conductive (uninsulated) walls and roof, and warm air escapes through leaks and draughts. Both ways lose heat. There's no point switching until this is fixed.

Yeah. There's a thread that goes in to all this, but it has a shit title. I'll dig it out.

Edit. why did I bother, there's like five different threads.

This is excellent, thank you.

If only it had a tl;dr

But yes, good bed time reading.

Also really enjoying the sketches of archetypal Scottish houses.

LETI Retrofit Guide also has good case studies of different types. Not as much homeowner audience but good for anyone interested in the building physics.
https://www.leti.uk/retrofit

Love the idea of it. Easy enough to source these days or were the wait times ridiculous?

I am living somewhere without a working boiler for 6 months.
I don't mind no heating, as it's summer, but having no hot water is getting tiring.
The boiler will be around £1k to repair or replace. After these 6 months I have no use for it.

What's the best solution to spend less than £1k so I can have a hot shower?

Can I install some kind of 50 litre Electric Water Heater next to the boiler, so hot water will be taken from its tank?

Why not a £50ish electric shower from screwfix?

Plus on-demand electric water heater under the kitchen sink

Not bad really. It’s made in Portugal so relatively unaffected by all the shit in the east.