Last seen: Jan 12, 2026
not sure if i should insulate the 28mm flow and return that goes to the radiator circuits. they are quite a long 8m approx. L shape run with other rad...
jees ive got 2 hopes of heating my bathroom then. someone suggested an standard design aluminium rad, instead of a towel rad, but im worried in a copp...
@gary so does that mean at a dt of 50 the actual flow is 70c for a 20c room temp?
so why dont sites list the output based on flow temp? cause most seem to use dt.
what about galvanic corrosion as i have copper pipes and other steel rads.
im thinking of going for the taller one and letting the heat from the plant room plus the flow/return 28mm and the primary 28mm's that are in the ceil...
both are delta T50 apparently, one is recalculated from a higher flow temp to be more realistic it says on the site.
think ill be looking at local people that can do mine when its installed. im quite competent to do it myself but doubt Vaillant would see it that way....
Latest Posts
-
RE: Passiv Smart Thermostat - Help & Forum Support
Thanks @tim441. Interesting timing, as Passiv are a cur...
By Mars , 29 minutes ago
-
Sunsynk Whole House Backup Issue
Hi, looking for help and advice as my installer is usel...
By LostandConfused , 31 minutes ago
-
RE: Post-Traumatic Heat Pump Stress Disorder
@jamespa, I agree with you entirely. Greed, money an...
By Mars , 41 minutes ago
-
Hi everyone, I have a two year old Marlec Solar iBoos...
By Tallmarc , 3 hours ago
-
RE: Please help with the settings ecodan
Are you trying to address any particular performance is...
By Sheriff Fatman , 9 hours ago
-
RE: Solis inverters S6-EH1P: pros and cons and battery options
🤣 Well, I never managed to get the HA solis "...
By Batpred , 10 hours ago
-
RE: Experience - New Build / Complete New Heating System
Your sap clculations should give you a heat loss figure...
By JohnnyB , 10 hours ago
-
RE: Vaillant aroTherm not heating with many faults
@editor hmmm, our engineers Rae, Craig, Naz, Rob and Ry...
By ASHP-BOBBA , 11 hours ago
-
RE: Recommended home battery inverters + regulatory matters - help requested
Indeed! And my apologies, I should have expected you...
By Batpred , 11 hours ago
-
RE: I’m glad the cold spell is over!
@editor as a reply for this date the 6th of Jan in o...
By Nursethescreens , 13 hours ago
-
RE: Heat loss based on gas usage
@jamespa Thanks. The numbers posted above were jus...
By Bash , 13 hours ago
-
RE: Heat pump not reaching flow temperature
I would describe this as either a fault or a configurat...
By JamesPa , 14 hours ago
-
RE: New Daikin 11kW Altherma 3M install - is it working as it should?
I forgot to mention: Octopus measured our heat loss at ...
By Toodles , 17 hours ago
-
RE: Considering MLCP (Multi-Layer Composite Pipe) for ASHP
Thanks Mars and thank you for reaching out to so many p...
By iotum , 17 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: @davec Manufacturer: Peak Energy Mode...
By DaveC , 17 hours ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
Well, the guy came out, turned the heat pump to max, we...
By razz , 17 hours ago
-
Midea R32 setup and bizarre running with lengthy off periods?
Hi I am new to the world of ASHP and have just had a re...
By Countryman Helmsley , 18 hours ago
-
RE: Setback savings - fact or fiction?
Given the weather has been relatively stable, the empir...
By Batpred , 18 hours ago
-
RE: GSHP WOES! Midland based engineer recommendations?
@editor That is very kind! Thank you so much.
By johnbroome , 19 hours ago
