Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Jul 26, 2026
That's well done. Cable is the correct type (LIYCY = 2x stranded copper wires + copper braid shield). The zip tie holds the cable itself, there is no ...
+1 CAT5 and 6 work absolutely fine for RS485 until the wires break, which will happen eventually if vibration is present or someone opens the panel ...
Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/kg), this is the amount of heat that must be removed to condense 1kg (or 1l) of water. Dehumidi...
It's a seasonal fruit, like tomatoes lol I bought 2x mobile 4kW units used last February for 200€ each. Dehumidifier is likely to be underpower...
These are identical to mobile aircon units (or US style window aircons) you get a compressor and two refrigerant/air heat exchangers in one box. Dra...
Well deserved! 👌 55°C to the rads is really high, shouldn't be that high if they are oversized. Assuming the heat loss is correct, this shou...
OK Power (Watts) = Flow (in l/s) * Heat capacity of water (4180 J/°C/L) * DeltaT (in °C) Flow (in l/s) = Power (Watts) /( DeltaT (in °C) * Heat ca...
Heat capacity of water is 4180 J/(°C.liter), therefore 1kW = 0.24 °C.liter/s Assuming inlet water temperature 20°C outlet 65°C deltaT 45°C, 1kW cool...
Above dew point cooling is mostly useless. For actual air conditioning you need both cooling and dehumidification which can only be achieved with belo...
If it is RS485 (is it?)... It uses balanced/differential twisted pair link. The idea is to send the signal on one wire, and the inverted signal on t...
If it is designed as a RS485 point to point link, then the designers should have included termination resistors on the board at both ends. No idea if ...
+1 for everything Concealed FCUs are expensive to install due to all the drywall work. Also an issue for maintenance. That said, your quote is ind...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Jokes and fun posts about heat pumps and renewables
Plenty of butts 'round 'ere but
By Transparent , 6 minutes ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 13 hours ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
By Papahuhu , 2 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
-
RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 2 days ago
-
RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 3 days ago
-
RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
-
Who did the Freedom Heat Pump cloud server and what did...
By Mars , 3 days ago
-
RE: Who's your electricity provider and what's your tariff?
Reading between the lines of what octopus are doing wit...
By JamesPa , 3 days ago
-
RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
-
I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
-
@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
-
@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago
-
RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
all good advice I will follow this up
By PaulC , 3 days ago
-
Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
By bobflux , 4 days ago
SPONSORS
