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robl
@robl
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Honorable Member
Joined: Mar 23, 2022
Last seen: Oct 2, 2025
Profile Activity
Topics: 1 / Replies: 204
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RE: Cost to have Gas removed

Octopus removed our gas meter for free a couple of years ago - leaving a capped plastic pipe sticking out of the ground inside the old meter box. I k...

2 weeks ago
Forum
Your Home
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RE: Double or Triple Glazed Windows?

If you get windows replaced, then I think it's well worth getting low U value units in whatever the frames are. It's not simply 3G is better than 2G;...

3 months ago
Forum
Insulation
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RE: Can I add an EV charger to a full consumer unit by coupling with a garage DB?

As I understand it, if a slowly rising common mode DC is passed through the AC only type of RCDs then it will saturate the core in it, and then it can...

7 months ago
Forum
Renewable-powered transport (EVs & e-bikes)
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RE: Can I add an EV charger to a full consumer unit by coupling with a garage DB?

We have two car chargers with different plugs🙄 - a 32A one and a 10A one. The larger one is fed with 6mm2 cable from its own tiny CU (looks j...

7 months ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Plug and play solar. Thoughts?

I’ve seen our mains voltage very high on occasion, but I’ve never known anything happen due to it. We get 253V on a sunny day here - I looked in the ...

7 months ago
Forum
Solar Photovoltaic (PV)
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RE: R32, "optimum" delta T

There’s no definitive magic deltaT for a heatpump, just pragmatic ‘generally optimum’. If you put more power into the water pump, the deltaT will redu...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

That 2.5% cost increase every degC corresponds to my home-made graph pretty accurately. I was confused by the graph above at first, but then I unders...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump's integral circulator pump

Technically I could perhaps be called a heat pump designer, having designed and built the one gshp system that has heated our home for 3 years. It’s ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar inverters - where does the energy go when clipping?

Why do panels get damaged if not connected? When they are normally in the sun, they get 800W/m^2 evenly distributed, and they warm up everywhere. S...

8 months ago
Forum
Solar Photovoltaic (PV)
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RE: Solar inverters - where does the energy go when clipping?

In the solar panels. On a nice sunny day, a square metre of panels would get 1kW from the sun. Of this we might expect 200W of electical power if...

8 months ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Cost to have Gas removed

We had our gas meter removed too by Octopus, for free. It took the guy 20 minutes to do - he turned off the incoming gas lever in our cabinet, remove...

9 months ago
Forum
Your Home
Reply
RE: Is it crucial to get flow temperatures with heat pumps right?

I notice on a pic on page 2 what looks like heatpump gubbins (buffer, tank, pump, pipes) in a cold ventilated loft? How much insulation is there in ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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