Forums

AI Assistant
Forums
Members
Sim0n0
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!

Sim0n0
@sim0n0
Member
Active Member
Joined: Nov 26, 2025
Last seen: Jan 12, 2026
Profile Activity
Topics: 0 / Replies: 26
AllTopicsReplies
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

I’ve noticed their graphics are a bit odd in places. I would ignore  

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

 

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

-3 overnight. Mine appears to defrost every 45 mins

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

Currently 2° here. I’ll try and get some defrost numbers to compare  

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

That's great news! I hope it works out well  

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa Apologies I did know that but I seem to have replied to the wrong post

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa I’ve re read through the instructions a I can’t see anything in the DIP switch settings relating to Thermo off or hysteresis. My system doesn...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa Why does he need any hysteresis? Just set the heat pump to 20 and it will go as low as it can. I’d have to check but I think mine will get do...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa Yes it cycles a lot. In fact I smile when it’s -3 outside knowing that my heat pump is working efficiently - a couple of days a year LOL. I d...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

@jamespa I’d need to read back through the manual but I don’t use the 4 degree Thermo off. If I’m honest I don’t even remember what that is. I doubt i...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

My issue is an oversize 11kW heat pump and a poorly designed UFH. My house gets too hot made worse by solar gain from large south facing windows My ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing my 18 month old Hitachi Yutaki ASHP

May not be relevant but my Hitachi system was a ‘package’ supplied by Freedom Heat Pumps. This included a buffer, several mixing valves and Heatmiser ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Page 1 / 3
Share:

Join Us!

Worth Watching

Latest Posts

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 →