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Last seen: Mar 25, 2026
@sheriff-fatman Thank you for the interesting and comprehensive discussion about the use of auto-adapt and reported efficiency. I had my 10kW Eco...
@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...
@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...
@sheriff-fatman Thank you, food for thought. I think that I am about to be distracted by Christmas. Happy Christmas
@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...
@sheriff-fatman You may be able to vary the pump speed by using the controls on the pump.
@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...
@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...
@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...
@majordennisbloodnok Delat T 3C, no defrosting and I am not running Home Assistant
@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...
@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...
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Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 8 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 8 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 9 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 10 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 11 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 11 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 11 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 16 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 17 hours ago
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Although regulations may well vary from country to coun...
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
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