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robl
@robl
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Honorable Member
Joined: Mar 23, 2022
Last seen: Feb 19, 2026
Topics: 1 / Replies: 211
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RE: Samsung Launches the EHS Mono HT Quiet – A High Temperature, Low Noise Heat Pump Ideal for Home and Building Renovations

@iancalderbank @Jeff DT is just the temperature of flow-return, and Heatpumps only care about the flow temperature - if you would like a DT of 20C, ...

3 years ago
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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 ...

3 years ago
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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 ...

3 years ago
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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...

3 years ago
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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 ...

3 years ago
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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...

3 years ago
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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
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Replies: 0
Views: 4100
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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
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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 ...

4 years ago
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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...

4 years ago
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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...

4 years ago
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