Last seen: Sep 4, 2025
@JohnR, I think I've seen something like this for plastic - in essence, each 90deg elbow/T etc creates the equivalent resistance of 0.5m of straight p...
Cheers for your post, @JohnR Implying that wherever a larger internal diameter can be applied, the friction loss is greatly reduced and therefore a ...
Thanks for the reply, @bontwoody It's no doubt me, but I've tried a handful of times and can't figure out what this means - sorry, could you write i...
Note that the display only shows the flow temps as whole (integer) numbers but the actual temp set may be different by 0.5C
In light of some new sub-zero OATs from the past two days, I'd like to amend what I wrote above (but the forum won't now let me edit the post, despite...
Unless I'm misunderstanding something, my FTC6 allows the user to manually set the flow temperature of one OAT between the high and low OATs. This th...
Thanks @heacol Brendon - helps as well as creating more questions! :-/ I appreciate your time and effort in responding. As I'm sure you know, w...
[quote]Zoning is a last resort, but only if it is designed correctly. If the heating system is not specifically designed to do it, DO NOT do it. It wi...
[quote]I always try to use 1 pump, but more may be needed if 1 is not big enough.[/quote]Paraphrasing, does this mean if the only pumps that could pro...
[quote]Almost impossible. Correct flow rate can only be determined on commissioning, anybody who says otherwise has never commissioned a system correc...
[quote]One that will do the job, they are tools, if you use the wrong tool, it will not work. They all the same these days.[/quote][/quote]From readin...
Latest Posts
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RE: Say hello and introduce yourself
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By Toodles , 10 minutes ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
@jamespa The mechanical engineer in me wants to attempt...
By ChandyKris , 12 minutes ago
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One thing I have been doing, is creating watch...
By DREI , 12 minutes ago
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RE: Isolating the system for a planned power cut
@batpred - that Solis installation page is too vague. ...
By Transparent , 15 minutes ago
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RE: Heating Turned Off but Radiators Still Warm
I love Necromancy... but to follow James, heat pumps WI...
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
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By DREI , 24 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
Agreed, but when you spend a substantial amoun...
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
Any chance you could say where you heard that suggested...
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RE: Heat loss calculations and how they work in conjunction with heat pump sizing
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By JamesPa , 3 hours ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
This is often a problem when units are installed under ...
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Very Much Awake – Renewing the Heating Industry One Step at a Time
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Ah.... I'd like to make a couple of observations: &nb...
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RE: Battery storage to run Heat Pump.
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RE: What is the Heat Geek Guarantee?
@colinc, that’s a very fair and well-balanced comment, ...
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@toodles Thanks. I will assume they have made som...
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That sounds suspiciously like an argument by an install...
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RE: Midea ASHP – how to set weather compensation
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