Forums

Notifications

Clear all

Derek M

@derek-m

Member

Illustrious Member

Joined: Mar 4, 2021
Last seen: Sep 19, 2024

Topics: 7 / Replies: 4405

AllTopicsReplies

RE: Weather compensation and air source heat pumps

Hi Justin, I don't wish to decry the results of your testing, but I would just like to offer a few words of caution. My control system maintains t...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: 14Kw Mitsubishi Ecodan ASHP

Hi Justin, Looking at page 45 of the attached manual, it would appear that the 'freeze stat' function is designed to protect the system from the wat...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Wondering why BioGas is not promoted

Hi Mars, When I looked at this when it was first posted, it would appear that the daily production of gas was about enough to cook a meal on a gas h...

4 years ago

Forum

Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives

RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

Hi Alec, I agree with your sentiments, and I also become frustrated by the inability of so called system designers to follow manufacturers recommend...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: High air source heat pump running costs – Vaillant AroTherm Plus

Hi @webcmg The ladies problem has not yet been fully resolved, to do so may mean alterations to the pipework around the buffer tank. With your pa...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: DHW contributing to space heating?

Hi @transparent Thank you for your explanations. I'm afraid I did not delve into 3 phase balancing requirements, since the majority of the popula...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

Hi, I think the fact that the motorised valve for the DHW not being connected to the controller may have something to do with it not working correct...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Weather compensation and air source heat pumps

Hi Adam, It is quite simple. If the upper and lower outdoor air temperature settings are say -10C and 15C, then the overall range is 25C. If the...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

Hi Saf1973, From looking at your schematic it would appear that the water connections are reversed at the ASHP, and of course that would mean that t...

4 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Wind turbines and chimney effect ventilation

Hi Everyone, You may be interested to know that at the moment wind is providing 3.6% of total generation and coal is providing 6.7%. Please checko...

4 years ago

Forum

Wind Generation

RE: Weather compensation and air source heat pumps

Hi Newbie, Are you still making smoke? I have attached a copy of the spreadsheet. Please read the notes on sheet 1, which should help.

4 years ago

Forum