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bobflux
bobflux
@bobflux
Member
Trusted Member
Joined: Feb 22, 2026
Last seen: Mar 14, 2026
Profile Activity
Topics: 1 / Replies: 36
AllTopicsReplies
Reply
RE: Mitsubishi Ecodan 11.2kW review

Ecodan speaks a proprietary protocol on its connector "CN105". It's been reverse engineered and it is possible to use an ESP32 as an interface to Home...

4 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Installation Issues Driving Me Crazy in Germany - Advice Needed

Dry rotor circulators are noisy, but wet rotor circulators are supposed to be almost completely silent. I have a Grundfos Alpha 1L which is perfectl...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin Altherma 3 LT compressor longevity question

Here the heat pump runs continuously and generates power, which manifests as DeltaT between flow and return, and is also displayed as "Heat" power in ...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why One Strike on Iran’s Oil Infrastructure Undermines Every Heat Pump and Solar Array in Britain

I wonder how much coal the Germans are going to burn when they run out of natgas.  

5 days ago
Forum
Well & Truly Off The Grid
Reply
RE: Our 10 year old Grant heat pump failed

These systems should work fine without requiring the user to become a part time heat engineer and plumber. Unfortunately, visits from the "tech wizard...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Other than heat loss, radiator sizing, ASHP sizing, what else goes into a design and how important is it?

It's possible to estimate the minimum power from the inverter modulation range, often called "Compressor Hz" in the technical documentation: for my LG...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor Heating Installation Issues with Heat Pump

This looks like a practical solution 👍

1 week ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Noisy Grant Aerona 3 13kW ASHP question

Here's a LibreOffice spreadsheet. I put the formula for pipe pressure drop in a macro, so you'll have to enable macros in the options when it loads....

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Tell us about your Solar (PV) setup

Pylontech US5000 stores about 4.3 kWh accounting for inverter losses and costs 1000€. Over 3000 cycles this means one kWh going through the battery co...

1 week ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Other than heat loss, radiator sizing, ASHP sizing, what else goes into a design and how important is it?

I also totally agree with the recommendations from Mars and James 🤣 All installers who came here wanted a big buffer tank. When I attempted...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Peak Energy Products V therm 16kW unit heat pump not reaching flow temperature

Yes, here's mine. From the service manual parts numbers (compressor etc), the 12-14-16kW models are identical, and all are actually "much more than 16...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 6 meter run of pipe from the outside to the UniSTOR Pure 200lt cylinder: do I go plastic or copper?

Had to learn the hard way 🤣 now I'm sharing The house has underfloor heating with non barrier PEX installed by the previous owner, this ende...

1 week ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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