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robl
@robl
Member
Honorable Member
2570 kWhs
Joined: Mar 23, 2022
Last seen: Mar 4, 2025
Profile Activity
Topics: 1 / Replies: 198
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Reply
RE: Samsung Launches the EHS Mono HT Quiet – A High Temperature, Low Noise Heat Pump Ideal for Home and Building Renovations

@iancalderbank Gas boilers can have a high DT as the efficiency of them is governed mostly by the return water temperature. So long as the return ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Questions about V2G, V2H and V2Everything

@mattengineer We have 4kWp of solar, dno informed, about 9 years ago. PV is brilliant, if you haven't got, get as much as you can fit and the dno ...

2 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Questions about V2G, V2H and V2Everything

Here's a 'scope plot of it working. Red is Voltage, Blue current on our mains tail, black is V*I. At the left hand side, there's very low real pow...

2 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Questions about V2G, V2H and V2Everything

@mattengineer Yes, we had no trouble getting it changed to V2H. I emailed Indra, they asked me for confirmation that I owned the unit - I did, as ...

2 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Heat storage batteries

I really don't understand how something so simple could cost so much. I think "heat batteries" have a place - perhaps (a small unit) in a passive hou...

2 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Electricity price predictions

All being well, we'll have our gas meter taken out after this winter. Mrs RobL wants 2 heating seasons without gas before it's out to be sure to be s...

3 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Topic
DIY blower door testing
3 years ago
Forum
Insulation
Replies: 0
Views: 2963
Reply
RE: Electricity price predictions

@diverted-energy In our unusual resource constrained situation, I can't see a helpful way to avoid energy being expensive. If taxes are reduced, a...

3 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Battle of the charging technologies

I'm torn between the "Tesla future" which I want, and what I consider to be closer to reality - there's just not enough "Carbon budget" for everybody ...

3 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Heat wave 2022

We have a lot of insulation - 150mm EWI, and a very heavyweight house - brick & solid concrete floor, so it takes days and days to change the temp...

3 years ago
Forum
Insulation
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@Aceshigh The thermosypon effect will be from any hot water store, where a pipe exits and heads upwards, or horiz then upwards. It's most likely ju...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar PV for our shed

@editor To turn down the light brightness, you'd generally put a resistor in series. I wouldn't be worried about buying a unit like the one linked...

3 years ago
Forum
Solar Photovoltaic (PV)
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