Last seen: Jan 14, 2025
@sunandair DT is a phrase used too much in HP discussions, one needs to be clear about between what points the difference is being measured. Its nor...
doesn't matter. check the datasheet 2 posts up. the higher the flowT, the worse the COP. same for any heat pump. also you are talking about loss...
@sunandair if your sketch is accurate, and the DT on both sides is the same, and the flow rate on both sides is the same, then heat energy transfer is...
kwh needed is the only unit that can be calculated or estimated by a system designer. although we've had a lot of debate here about how accurate (or n...
@amanda1 several of us are trying to politely put you on the right track, there is no misogyny here, I think I was quite polite in my previous posts. ...
@amanda1 from what I can see (From a quick read of their manuals), the mitsubishi "freeze stat" configuration is a form of "freeze protection function...
@amanda1 in general there are a few concepts to try to separate and think about "defrost" = the heat pump running in reverse. to defrost itself w...
here's a use case: I've seen the "freeze protection mode" on my (samsung) kick in during a very cold snap night in april, after a mild day. the heatin...
@derek-m mine is the same type of system as tim's. here's snapshot of one of my panels just now (its not sunny). current is more or less the sam...
@amanda1 in general, the purpose of the anti-freeze protection function of the HP is usually for the "AND" situation: "outside air temperature below ...
@allyfish mm ok, there must be something else making it cut out because you should be able to go as hot as the immersions limiter, maybe grant have d...
@allyfish at this time of the year if you have copious PV you can turn the immersion stat up to maximum thereby dump the max amount of free energy int...
Latest Posts
-
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
@toodles I have noticed that on some.days it takes a wh...
By ChandyKris , 4 minutes ago
-
-
RE: Fan running in hot weather ...why?
I wonder if it has some kind of pressure transducer to ...
By ASHP-BOBBA , 4 hours ago
-
RE: Cooling with Samsung Gen6 and Flow error
@iaack The system isnt running long enough for any cond...
By EcoBaker , 10 hours ago
-
@heacol thanks for confirming we can only hope NAPIT ag...
By Bart , 12 hours ago
-
RE: BUS Grant: removal of all other fossil fuel heat sources
@editor If it is of any interest, we had the BUS grant,...
By Toodles , 2 days ago
-
Sorry to hear that @bruce. Sadly I’ve heard from multip...
By Mars , 2 days ago
-
RE: Crystal Ball Time: Communal or even Area Energy Storage?
I am invested in a couple of listed energy storage fund...
By Old_Scientist , 2 days ago
-
RE: Who's your electricity provider and what's your tariff?
That would be my biggest commitment -time to gain great...
By SUNandAIR , 2 days ago
-
RE: Who has a V2G EV installation
As has been discussed on other threads, trying to justi...
By Majordennisbloodnok , 3 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
Thanks @mikeh. Then I will also go back to non smart ta...
By ChandyKris , 3 days ago
-
RE: Location of hot water isolation valve on cylinder
@transparent Thank you so much and very helpful. Earlie...
By rossowheels , 4 days ago
-
RE: Ecodan consuming 100kwh per day in new build!!!
It does indeed look like that, @skyefarmer. There is ...
By Majordennisbloodnok , 4 days ago
-
RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
By Lucia , 5 days ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
"To tell you the truth, I don't know if HAL is homicida...
By Scalextrix , 5 days ago
-
The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
It’s fascinating to watch how low-temperature heating i...
By Mars , 6 days ago
-
RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 6 days ago
