Last seen: Sep 21, 2025
I must say that the recent posts about buffers are most encouraging. When I first embarked on this journey it seemed almost heresy to suggest on a pu...
Because it's been done in a completely muddle headed way. The requirement for accessing a grant has been conflated with both planning and building re...
One of the many reasons I think that MCS should be taken entirely out of the regulatory loop. That which needs to be regulated should be regulated th...
@fazel @bontwoody Anyone who said central heating system design is easy lied, particularly in a retrofit situation where one of many often competing...
Like most on here I'm not a heatpump engineer either. My background is in physics and engineering with a recent diversion into local government. So ...
If sizing for 35C leads to rads of a tolerable size then in principle i agree ( although you can do both) However I'm not chasing what you suggest, i...
That's interesting data provided that a) in doing your calculations you adjusted the lwt in the case of a cycling pump so that the average power...
Unfortunately you are wrong assuming the objective is to heat the house to a given temperature. If the heating is on/off, whether controlled by the h...
Yes but at the expense of running at a higher flow temperature (and thus lower efficiency) than is necessary to achieve the power output required from...
Equally some achieve greater output than their name plate rating. Choice of model should be based on the capacity table and design min OAT, not an ar...
Good point! [/quote] True, but surely its alright to go without, or just use the immersion, on the handful of days during the year when the OAT is...
Looks like these guys are onto it, albeit for energy efficiency not system sizing.
Latest Posts
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RE: Repiping and Reconfiguring our Heat Pump System Including Removing the Buffer Tank
ok my setup is pretty simple: 7.35kw cibse heat loss ...
By AdamK , 7 hours ago
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RE: How to choose Towel Rails for an ASHP
In one en-suite bathroom we have a 180cm high towel rai...
By Judith , 8 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
This is actually based on the same chipset as the Svena...
By Grantmethestrength , 8 hours ago
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RE: Powerwall 3 or Myenergi or something else?
@adamk what you need is enough battery size to cover 3 ...
By Judith , 14 hours ago
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RE: Say hello and introduce yourself
@jarlatheoin do put the MVHR in early it’s not an easy ...
By Judith , 15 hours ago
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RE: How to Zone with a Single Room with UFH
We have exactly what you describe, one utility room wit...
By Judith , 15 hours ago
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RE: Who's your electricity provider and what's your tariff?
@agentgeorge Come the Ist of October, the Cosy cheapest...
By Toodles , 16 hours ago
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RE: Boxt Heat Pump Installation Experience
@ashfp Mine does have a buffer tank. That was my experi...
By Andrew J H , 1 day ago
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RE: Which temperature sensor for a Steibel buffer and Ecodan?
@ashp-bobba might be able to help as an Ecodan expert.
By Mars , 2 days ago
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RE: Help me keep the faith with my air source heat pump installation
I'm sure you are right, I was just trying to understand...
By JamesPa , 2 days ago
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RE: Preparing for 2nd winter in new build house.
Yuch! So that's basically just an on/off control. I...
By Transparent , 3 days ago
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Good day everyone. I'm new here and have a few question...
By Edin67 , 3 days ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
By JamesPa , 3 days ago
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RE: Mitsu PAR-WT60R Wireless Controller - options
How it does it's job is something of a mystery although...
By Abernyte , 4 days ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 6 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 6 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 6 days ago
