Forums

Forums
Members
JamesPa
Activity
 
Notifications
Clear all
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 14, 2025
Profile Activity
Topics: 17 / Replies: 2690
AllTopicsReplies
Reply
RE: Buffers, hot water and cooling

It is very unlikely to break, but of course it just might if there is something unusual about your plumbing. Its obviously your choice whether to (a)...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Buffers, hot water and cooling

Unfortunately even with hydraulic separation you do need to worry about flow rates unless you are happy to increase operating costs by 15%, because un...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Buffers, hot water and cooling

Definitely do this. My dhw operates fine without a buffer or volumiser and your logic explains why. Agree If you are replumbing why no...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Say hello and introduce yourself

Welcome. Do feel free to tell us about your project and ask any questions you have.

4 weeks ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

Just another thought - it might be worth thinking about the control strategy in relation to the backup heater. I think that the typical control strat...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

When i was looking I encountered one installer who does this as standard. It's cheaper to buy a direct cylinder (no coil, just an immersion), a pump ...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

It sounds like you are well organised. You want to aim for open loop operation on weather compensation only, no buffer, LLH or PHE between emitters...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

Ok so that's 35MWh and 32MWh respectively, assuming 10kWh/l, indicative of 11-17kW assuming the boiler is 100% efficient (which it likely isn't) and t...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

@guydeb It is going to be high loss. I have heard that the commonly assumed U values for stone walls is way to high, and the air changes is also o...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is a Valliant Inline 6kW heater a BUS buster?

This has come up before; a close neighbour of mine did something similar and claimed the BUS grant, but of course that doesn't mean it is OK. I woul...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice

Agree, but you may have a hard time convincing them, as an overestimated survey is their ultimate protection. If you can get their calculations (and ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice

This smooths things out a lot, basically its useless. Thats nowhere near an average 10kW It looks like you switch heating off at night...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Page 6 / 227
Share:

Join Us!

Podcast Picks

Latest Posts

Members Online

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
ShieldPRO →