Last seen: Jun 18, 2025
I've ditched the weekly 1hr Legionella cycle using the 3kW immersion heater fitted to a Grant 250L pre-plumbed cylinder. I was finding it ineffective ...
Sadly a very significant downside, turned out the 'too good to be true' HFO synthetic refrigerants like R1234yf and R1234ze were, well, too good to be...
Yes, I have the 'Home-me' (TM) integration system too. Similar set-up, stuff like Growatt Solar + batteries + Grant [Chofu] ASHP. All should just be s...
@matenateson it's good. Welcome on board! We have a modest 3.6kW 9 panel array on a house which one company dismissed as 'not suitable for solar PV' b...
Hello @davesoa, some things I would cross check between different heat loss calculation estimates, in order of greatest influence on heat loss estimat...
Hi @editor, a lot of damp is mis-diagnosed as rising. Often it is penetrating damp through the fabric, common in older solid wall properties in the co...
That could be the case, depending on where the triple rad is in the circuit. We only have one triple on a 20 rad system, which is in a conservatory. T...
Timber framing that is dry lined can be a very effective noise amplifier to anything fixed to it. A good analogy is a carelessly mounted bathroom extr...
With BESS the ASHP is best. Charge battery for free from solar, then run ASHP in HW mode for an hour = free hot water + COP advantage that direct imme...
ASHP noise from the outdoor unit should not transmit through solid walls and DG windows to inside. You would hear it through open windows however. If ...
@holts Ah, now that's revealing! UFH downstairs + 50degc flow temperature must mean the installers are planning to using mixing valves on the UFH ma...
Hello @holts, a weather compensated flow temp of max 50degC via an ASHP is going to have quite a poor COP and be costly to run. If you can limit the L...
Latest Posts
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Quite honestly, the MCS situation is getting out of han...
By Mars , 5 hours ago
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RE: Who has a V2G EV installation
As has been discussed on other threads, trying to justi...
By Majordennisbloodnok , 5 hours ago
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RE: BUS Grant, removal of all other heat sources
The requirements are set out here and include (c)...
By JamesPa , 8 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
Thanks @mikeh. Then I will also go back to non smart ta...
By ChandyKris , 9 hours ago
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RE: Who's your electricity provider and what's your tariff?
Yes. Just focusing on specific months, our average impo...
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RE: Location of hot water isolation valve on cylinder
@transparent Thank you so much and very helpful. Earlie...
By rossowheels , 1 day ago
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RE: Ecodan consuming 100kwh per day in new build!!!
It does indeed look like that, @skyefarmer. There is ...
By Majordennisbloodnok , 2 days ago
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RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
By Lucia , 2 days ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
"To tell you the truth, I don't know if HAL is homicida...
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The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
It’s fascinating to watch how low-temperature heating i...
By Mars , 4 days ago
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RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 4 days ago
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RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 4 days ago
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RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 4 days ago
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RE: Heat pump solutions and/or installer recommendations for France
I’d travel to France for work if you were struggling wi...
By Damon Blakemore , 5 days ago
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RE: 5 Star Service from Havenwise
That's always a danger with any new good idea, @morgan....
By Majordennisbloodnok , 5 days ago
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Have your say in the Renewable Heating Hub Awards
It’s time to celebrate the best (and call out the worst...
By Mars , 5 days ago
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RE: Mitsubishi cycling while on chilled water output
@iaack yes there's no denying that cold air sinks! I s...
By downfield , 6 days ago
