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Alec Morrow
@alec-morrow
Contributor
Honorable Member
1314 kWhs
Joined: Jan 7, 2022
Last seen: Apr 3, 2024
Profile Activity
Topics: 6 / Replies: 203
AllTopicsReplies
Reply
RE: Heat pump delta T too low - 2c

a buffer serves the same function as a header as well as additional ones! If the pipe sizing is wrong then you are stuck with the substandard perfo...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

you want the return to be relatively. lose to the flow temp though.. this increases radiator out put. Your heat pump relies on a high flow rate...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

This is not correct.. the floor works on a different slope from radiators and needs its own mixer. The good news is this is a standard design an...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

Weather compensation control changes the way heating works. you probably don’t need to change them but if the newer ones are bigger you will use margi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

I didn’t realise you are committed to the daikin. Make sure the installers are installing daikins own controller and are not proposing to use on...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

im not suggesting you have a hybrid system, although that may work for you. It’s the controls that deliver a decent heating system not the boiler or h...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@oswiu Not sure where you are with this, but go for a manufacturer where the controller can operate either a heat pump or a boiler. My preferenc...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

What are people trying to achieve by widening the delta 2 the best approach is maximum flow and key the heat pump decide the rest gas boil...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

As Brendon says, the trick is in the controls only add UFH if the daikin controller offers it and use their schematic and design (The controls m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

@heacol why would controls not be compensated? I’m afraid the use of on-off controls on heat pumps and gas boilers is just nonsense and not possible i...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

Floor heating with an ashp is only worth doing if the pipes are in concrete and the covering ceramic or stone wood is a great insulator which i...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Underfloor heating designer / engineer needed

assuming the daikin is weather compensated, I am wondering why you would do this?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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