Forums

Search with Wattson
Forums
Members
batalto
Activity
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

batalto
@batalto
Member
Noble Member
Joined: Apr 9, 2021
Last seen: Nov 3, 2025
Profile Activity
Topics: 24 / Replies: 1068
AllTopicsReplies
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay unfortunately that's not how pressure and resistance in pipework is. Your pipework from the ASHP will be very large bore and, I would assu...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay I have no idea the efficiency of the exchange, so I'd check if I was you. On the flow rate, best to ask someone else, but as the pipes are...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@majordennisbloodnok you are correct. Batteries are measured in kWh e.g. I have 14kwh of storage, but I cannot deliver 14kw of power from them at any ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@kev-m you are correct 6000 / 42,000 = 0.14/s 0.14l/s * 60 seconds * 60 minutes = 514 l/h 514 l/h = 0.514 m3/h That would seem a respectable n...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay as a note my Midea is the 12kw version, however I doubt it working very hard at these ambients. You should be able to estimate flow rate...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay looking this morning my flow rate was is 1.41m3/h so close to yours - but this was for hot water. Got heating right now it's 1.78m3/h

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay your system is now carrying more heat into the exchanger. If you imagine 1390 litres of water (1m3) at 50 degrees that contains more energ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@derek-m Good point and one that should be followed with mass flow rate for heat. The water temperature might be 50 degrees but if the flow is low you...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay that should probably help the flow rates somewhat. I had to clean mine out quite often over the course of two weeks before I got everythin...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay its a quick job, you can just close the valve and take it out - the system wont error out that quickly. You'll probably have it back in be...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay give it a clean out - mine was completely full of crap and caused a low flow error on the system. Apparently its quite common in systems w...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay your flow rate seems low to me - pretty sure mine is well over 1m3. The heating isn't on at the moment, so I'll look when it is running la...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 34 / 91
Share:

Join Us!

Worth Watching

Latest Posts

Members Online

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security PRO
This Site Is Protected By
Shield Security PRO →