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Last seen: May 5, 2026
@heatgeek Happy to answer questions about our 8kW Mitsubishi. Yes, it's able to run at ~2.0kW output for extend periods with a dT of ~2C and a COP ...
@heatgeek @jamespa I hope this may help with the modulation discussion. Comparing the Hitachi 2.5 HP to the Mitsubishi R290 6kW (just one compresso...
@skyecraig I've had our FTC7 wireless thermostat lose connection to the controller a few times, does yours display 3 in the top right where the temp...
@trebor12345 I'm pretty sure Viessmann use an energy integral algorithm like Vaillant, so what we are seeing is that at a near constant outside temp...
@heatgeak It's good to talk about mild temperatures and heat pumps, they don't get discussed very often. It's a 8kW unit. It does prove that ...
As both Vaillants do DHW but the Samsung doesn't, you'd expect the daily mean COP of the Vaillants to be less. Also the first Vaillant does a defrost ...
@gary We've got the FTC7, maybe older controllers didn't have that setting? It's under Operational Settings on the FTC7.
See my post- it's called summer mode and is in the service menu.
Mitsubishi has a separate setting, like Samsung, to turn the heat pump off above an outside temperature. And turn the heat pump on below an outside te...
It's from:/p> Suggest you use the menu (top right) and download the PDF - it's a big document as it has all of Mitsubishi's air to water heat pumps....
A few comments that might be helpful. As James mentioned, usually the biggest source of over estimating heat loss is the ventilation rate (air chan...
Unfortunately for your argument the best performing Daikin on heatpumpmonitor is the one owned by matt-drummer and from how he explained his control s...
Latest Posts
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My experiences bear out what @jamespa said about slope ...
By Majordennisbloodnok , 46 minutes ago
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Glad you got a resolution but £11k to £14.5k to replace...
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RE: Brown Oily Residue Blocking Air Vent and Weeping Relief Valve... Anyone Seen This?
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RE: Indevolt Batteries UK Support & Info Thread
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RE: Renewables & Heat Pumps in the News
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
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The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
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RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
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RE: Valliant Heat Pump Settings
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RE: Two heating zones to one zone
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RE: Towns water feed to air source heat pump system
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As I was reading this article Mars, I was thinking that...
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RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
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RE: Growatt battery disconnected
I doubt this will happen, but I will try and suggest it...
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Understood. That's why I decided from the outset on a ...
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Firstly check you are using sound power not sound press...
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