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Ecoste
@ecoste
Member
Eminent Member
Joined: Oct 27, 2025
Last seen: Jan 7, 2026
Profile Activity
Topics: 1 / Replies: 27
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Reply
RE: Tinkerer's corner

@sheriff-fatman All data is the average of readings taken at 5 minute intervals over a period of about 2 hours during which the system was stable, e.g...

2 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Tinkerer's corner

@sheriff-fatman New Year Greetings. Here is some of my data from over Christmas and New Year. I have been experimenting with flow rates, flow temperat...

2 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@sheriff-fatman Thank you, food for thought. I think that I am about to be distracted by Christmas. Happy Christmas

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@jamespa I appreciate the questioning, you are correct it is important to have certainty. How would you check what the pump thinks the power consumpt...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@sheriff-fatman You may be able to vary the pump speed by using the controls on the pump.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@jamespa The 2 pumps was a decision by the installer, I don't think that they are necessary but at the moment it is a small difference in energy consu...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@sheriff-fatman This is the table that I am familiar with. It shows a COP of 5.04 with a capacity of 4.1kW at 7C OAT and 35C flow. Which is why I thin...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@sheriff-fatman The FTC7 with third party cylinder and pump does not control the pump speed, there is a menu item for pump speed and the value can be...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@majordennisbloodnok Delat T 3C, no defrosting and I am not running Home Assistant

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@sheriff-fatman I'm not sure why you have selected the Max figures from this table. Lower down the minimum figures are provided, these are more repres...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@f1p No Buffer, No LLH, Delta T is 3C, pumps are in proportional pressure mode, giving a fairly constant 19 l/min. There is glycol in the system and I...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan R290 10kW performance

@jamespa No cycling, flow temp varies by less than 2 degrees, return is very stable. Today it is running at 38C varying by less 2C, since water heatin...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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