Newbie: utterly confused with my Mitsubishi Zubadan air source heat pump running on 55C set flow temperature
What I mean is, your UFH power is 79wm2 I think, at mean water temp 50, so in your house that is 9. something kw of power.
they designed it to 42.5 mean water temp, not 50, so at the temp they designed to, you cannot emit more than 8ish kw into your house.
they might have a bit of paper saying it’s 14, but common sense and other data would suggest it’s nothing like that. If they truly do think it’s 14, then a sensible question maybe why they designed to to 45 degrees then and show then the emitter power. At 45 degree flow, you cannot put 14 kw of heat in, not even that close to it. I know they did not do the UFH, but they must have had a look at it.
but I appreciate this is tricky.
- 21 Forums
- 1,985 Topics
- 43.3 K Posts
- 37 Online
- 2,311 Members
Join Us!
Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)
Latest Posts
-
RE: Plug and play solar. Thoughts?
@editor Thanks. 3-4kw will heat a 200litre water tank w...
By Lucia , 5 minutes ago
-
RE: Is it worth siting panels on an East facing roof?
@carpenterstation, adding panels to your east-facing ro...
By Mars , 6 minutes ago
-
RE: Additional Battery v Wind Turbine v Ripple
@toodles am I wrong in thinking that you guys had gone ...
By Mars , 12 minutes ago
-
RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@gary I'll try and help, but at the moment I'm not rea...
By BobTSkutter , 4 hours ago
-
RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
I've commented earlier in this thread, finding the same...
By Mike Patrick , 5 hours ago
-
RE: To relocate or add extra PV panels..advice required
It looks normal up to 10:30!
By Judith , 5 hours ago
-
RE: Ecodan Auto Adapt Questions
@boycey Think I'll wait to see what Misti come up with....
By Richard24738 , 6 hours ago
-
RE: SolarPV tables / online calculator
This guy did a good analysis in summary go down a...
By Judith , 6 hours ago
-
RE: ASHP Ecodan L9 error - No Heating but Hot Water
@dnagre delayed reply! It worked again for a bit but ha...
By Phoenix15 , 9 hours ago
-
RE: Vaillant Arotherm Plus - new build no heating, no radiator
@john1756 did you ever get to the bottom of this?
By Mars , 11 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
We tested the away mode for the first time as we were a...
By ChandyKris , 13 hours ago
-
RE: Confused about Samsung Gen6 Hot Water Controller
Found a copy on this really good website 🤣 ...
By DerekDeLeon , 14 hours ago
-
RE: Smart TRV experiences (ideally integrating with Midea heat pump)
@madbilly - I think you may risk over-complicating this...
By cathodeRay , 15 hours ago
-
RE: Nibe F2040 ASHP PCB failure
@editor that is awesome! Your help is much appreciated.
By Delta , 1 day ago
-
RE: Are MCS are finally improving (some of) their guidelines?
Encouragement of installers to take account of the emit...
By JohnR , 1 day ago
-
In our case the pipe run for the heat pump is short and...
By madbilly , 1 day ago
-
@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 1 day ago
-
@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 1 day ago
-
RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 1 day ago
Latest Topics
-
To relocate or add extra PV panels..advice required
By WesleyP1874 11 hours ago
-
Is it worth siting panels on an East facing roof?
By Carpenterstation 13 hours ago
-
Plug and play solar. Thoughts?
By Lucia 1 day ago
-
By JamesPa 1 day ago
-
Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 1 day ago
-
Database of heat pump performance data?
By madbilly 2 days ago
-
By madbilly 2 days ago
-
Confused about Samsung Gen6 Hot Water Controller
By ntruby 3 days ago
-
help with new bathroom and towel radiator
By AdamK 3 days ago