Last seen: Aug 21, 2024
A reply from Vishay: your inquiry: "Are you aware of a device or method of converting the resistance output from a Pt1000 sensor to the equivalent r...
I asked OHMIGO® what curve they used for their NTC 20 kΩ table and received a very swift and useful reply: There are small variations between suppli...
Good suggestion. I am in the process of doing something similar to see which of the 15 (1-14, 17) Vishay curves is a good fit (It will also be interes...
It works fine but the integration with the rest of the system is rather clumsy. For solar back off, a relay in the SKSC2 drives a contactor which adds...
Requirements are for reliability and acceptability to heating installers / maintainers. Ideally, a ready made device with safety approvals (may not ex...
My guess would be a Digital potentiometer. Might need a logarithmic one to cover the NTC 20 kΩ resistance range? I'm not an electrical engineer so thi...
The Pt1000 Resistance Table is straightforward. NTC Thermistors, Resistance/Temperature Conversion is more complex. I know it should measure 20 kΩ at ...
Probably should have mentioned that the solar collectors are on a second floor sloping roof. Front of the house is almost on the footpath. Access to s...
I would like to know if they offer design advice and can recommend installers that might consider upgrading my existing system. There is a good supply...
Oops! Wrong pump. I have been informed that we have Grundfoss UPM3 HYBRID 25-70 180 ACA pumps. Sorry for the confusion. According to UPM3 Installation...
Latest Posts
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@judith good to know… I’ll continue to feed Wattson, an...
By Mars , 8 hours ago
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RE: Vaillant AroTherm Plus 7kW
@jamespa I have a hydronic baseboard heater in the kitc...
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RE: Getting the best out of a heat pump - is Homely a possible answer?
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@editor great article re accreditation. I note ISO/IEC ...
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RE: Renewables & Heat Pumps in the News
Here’s a little more technical detail/p>
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RE: Who's your electricity provider and what's your tariff?
I don't (yet), but my PW3 is due to be installed shortl...
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RE: MCS and NAPIT complaints process
@chrislay, is your heat pump complaint still unresolved...
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RE: ASHP Install from hell - help please
@saf1973 I’ve been going through old cases on the forum...
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RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
@editor excellent news, congratulations and well deserv...
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RE: Commencing on an ASHP Installation Process
Yes, it's "doable" if everything goes to plan, they arr...
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RE: How not to install a heat pump
You are right. Thinking on this has evolved over the p...
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RE: DHW SET UP with Samsung gen 5
Thats good news indeed, you are very likely almost ther...
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RE: Plate heat exchanger considerations
As far as I can tell my vented system would have a peak...
By Scalextrix , 5 days ago
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RE: Air Changes per Hour - ACH and the MCS requirement
There have been a few discussions dotted around (e.g. I...
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having made some enquiries locally I have found a compa...
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