-
Posts
23383 -
Joined
-
Days Won
190
Everything posted by SteamyTea
-
ASHP environmental yield- seems low?
SteamyTea replied to daunker's topic in Air Source Heat Pumps (ASHP)
Could be. Display must have been written by a 12 year old marketing person. -
First Google hit. http://polypearl.co.uk/cavity-wall-insulation/
-
ASHP environmental yield- seems low?
SteamyTea replied to daunker's topic in Air Source Heat Pumps (ASHP)
If the top picture is thermal output and the lower picture electrical input, then yes, not very good at all, a CoP of: 7983 / 4474 = 1.78 If you have really only used ~8,000 kWh since it was installed, a 12 kW heat pump seems rather large. At full output it means it has only run for 665 hours, but even at half output it is only double that, 1,330 hours. Does it switch on and off a lot (short cycling) and do you know your flow temperatures and if there is a buffer tank fitted? -
It did not put BRXIT voter's off, even when the financial consequences were obvious. The alternative could be to add a penny to each kWh consumed by every user. Or add a penny to the daily rate.
-
Did you leave a window open? my house seems to never go below external temperature + 3°C when empty and unheated. While insulating the loft properly is a very good idea, start checking for air leaks, this is often easier to do before you insulate.
-
He may be spending a couple of weeks as a cuckold, only reason to take your own to the West Indies.
-
I miss the Concorde going into Barbados. Shame it did not fly from Newquay. The runway is long enough. Still, come next year, Branson can take me to the edge of space. I should get free flights as he frittered away all my pension money.
-
Looks like a tin of white paint, with a drip covering the L in the name.
-
I hadn't. Did my apprenticeship, alongside extra college, then university, and bought my second place. Wish I had spent more time doing things I really liked. Oh hang on. Went into semi retirement at 40 and done nothing constructive for over 2 decades. Work is overrated.
-
-
St Johns. Canada? Better than Antigua and Barbuda, not. Should have gone further south.
-
At least our beer is warm. And spelt right.
-
Rendering (Sand and cement) in cold weather
SteamyTea replied to Moonshine's topic in Plastering & Rendering
The renderer will probably add an accelerant. The Eastern wind should be dry, and help. At least you don't have to worry about shrinkage. -
No we don't agree. There are too many people about that think they can argue a point without showing their evidence. You have been asked a few times to show how you are going to prove that you cannot possibly, ever, export. You have failed to do so. An inverter may well export to just below 1 Wh without it registering on a meter, can still be over 250V. And still enough to kill. {This post has been edited to remove language inappropriate for the forum.}
-
Air conditioning Manufacturers
SteamyTea replied to crispy_wafer's topic in Air Source Heat Pumps (ASHP)
These days of IoT I would make sure that full functionality is available without using a cloud service. Would be an annoyance if you could only change the time, twice a year, through a dedicated server. -
Oops... didn't plan on this cold weather
SteamyTea replied to Adsibob's topic in Garages & Workshops
-
Oops... didn't plan on this cold weather
SteamyTea replied to Adsibob's topic in Garages & Workshops
Is the shed in the sun? If it is, it may well go over 10°C, even if the air is colder. This should not be a problem as the colder, exposed side of the film will still allow evaporation. -
The air does not 'hold' moisture. Water vapour is just another gas, like nitrogen, oxygen and argon. https://edavies.me.uk/2017/03/vapour/ Now of you are in a room, regardless of the temperature and humidity, the act of you breathing will increase the absolute humidity. This may be masked if the temperature also increases as it is more usual to measure relative humidity. The RH will go down, even if the absolute amount of water is still same. Why this causes physiological problems I don't know. I know I prefer dryer climates: grew up in the Far East and it was horrible, then moved to West Indies to a very dry island, it was lovely. But I do know that when I do a long haul flight, my noise starts to bleed, apparently a known phenomena of the dryer cabin air.
-
MCS needed to get epc certificate?
SteamyTea replied to DragsterDriver's topic in Photovoltaics (PV)
Installation details and PVGIS expected generation, plus electricians sign off just to be safe. -
Nibe F2040 adjusting compressor curve?
SteamyTea replied to Luke1's topic in Air Source Heat Pumps (ASHP)
Interesting. Does it actually change the compressor speed, pressure or volume (via a bypass). Or does it adjust the water flow rate out of the ASHP? Or adjust the flow and return temperature? -
That will be about 5 kW then. You may get a higher power output if the inlet temperature was very low, and the air very dry.
- 6 replies
-
- oil heating
- electric heating
-
(and 2 more)
Tagged with:
-
Have you tried sleeping with boxing gloves on.
-
Will be this winter now.
