Last seen: Jul 9, 2025
@tomdad Here is some more detail. Firstly your heat pump is capable of operating at 55 or 35 or anywhere in between and indeed for a bit either si...
Thats the main consideration. You need to calculate btu or kW at your design flow temperature and compare with the room heat loss. Towel rails emit...
The point to understand is that cycling basically occurs because the heat demand from the house is less than the minimum that the compressor can produ...
That's a bit of a red flag. I don't think your WC settings are correct. No panic because the heating season is more or less over but some tweaks dur...
A couple of things: 1. You should be running on weather compensation (WC) so that the FT reduces as the outdoor temp increases. Your installer shou...
OK, thats good and low. With low flow temperatures like this there is less to be gained by operating weather compensation than if you were operating ...
Can I suggest you read (if you havent already) this 'starters guide' to heat pumps? I think you may be getting things confused. Firstly dont wo...
The guy was right as regards buffer tanks, avoid. However a 2 port volumiser is ok. Unfortunately terminology isn't quite consistent. Check that it...
@cliffhanger Mine has a 'space heating off' setting! Otherwise turn down thermostat if you have one and it's set up to call for heat
That's a good analysis. Presumably heat pump manufacturers design on the assumption that the heat pump is right sized. The typical oversized heat pu...
@adamk Sounds encouraging, what about any independent measure of total loss eg from current gas/oil consumption. Rooms share heat to a fair extent s...
I apologise if this has been covered already but have you got any way to sense check loss calculations eg from past usage. The two, three hour full p...
Latest Posts
-
RE: BUS Grant, removal of all other heat sources
Thank all for the reply. Our gas fireplace it’s fairly ...
By Rikiarn , 28 minutes ago
-
RE: Who's your electricity provider and what's your tariff?
Glad you're finding the information useful; I try to ke...
By Majordennisbloodnok , 1 hour ago
-
@bart Stinks of corruption.
By Brendon Uys , 1 hour ago
-
RE: Who has a V2G EV installation
As has been discussed on other threads, trying to justi...
By Majordennisbloodnok , 14 hours ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
Thanks @mikeh. Then I will also go back to non smart ta...
By ChandyKris , 18 hours ago
-
RE: Location of hot water isolation valve on cylinder
@transparent Thank you so much and very helpful. Earlie...
By rossowheels , 2 days ago
-
RE: Ecodan consuming 100kwh per day in new build!!!
It does indeed look like that, @skyefarmer. There is ...
By Majordennisbloodnok , 2 days ago
-
RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
By Lucia , 3 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 , 3 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 , 4 days ago
-
RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 4 days ago
-
RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 5 days ago
-
RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 5 days ago
-
RE: Heat pump solutions and/or installer recommendations for France
I’d travel to France for work if you were struggling wi...
By Damon Blakemore , 5 days ago
-
RE: 5 Star Service from Havenwise
That's always a danger with any new good idea, @morgan....
By Majordennisbloodnok , 5 days ago
-
Have your say in the Renewable Heating Hub Awards
It’s time to celebrate the best (and call out the worst...
By Mars , 6 days ago
-
-
RE: Mitsubishi cycling while on chilled water output
@iaack yes there's no denying that cold air sinks! I s...
By downfield , 6 days ago
