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Johnmo
@johnmo
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Noble Member
Joined: Jan 25, 2023
Last seen: May 21, 2025
Profile Activity
Topics: 2 / Replies: 524
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Reply
RE: How to disable radiator heating in LG HM161MR

Easy way just set your hopefully single thermostat to min setting. If this built-in in to controller or standalone it's the same process. When you nee...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Warm weather and heat pumps.

We just switch it to either heat or cool. Had it on cool for a couple of weeks, now temps have dropped on heat mode. Likely to cool again later in the...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

A buffer is a legacy issue, they were never used on gas boiler systems, but generally specified when fixed output heat pump came along. So unlike toda...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

Polar opposite view on system design. Totally unconvinced building complex systems is a way to go for efficiency. Split the system in to hydraulically...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

Isn't this making an issue way more complex than it ever needs to be - overthinking it? A system running low flow temperature and emitter sized to roo...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yes, the "zoning with ASHP" topic again...

House is a single storey 192m² all UFH within 100mm concrete screed. Pipes are generally at 300mm spacing. Have tried all manner of buffer - 4, 3 and ...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Split system and pipe lengths for air source heat pump installation

Poor wording by me. Meant to say go mono-bloc heat pump so everything stays outside. A split system can move all the noisy stuff inside the house.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Split system and pipe lengths for air source heat pump installation

In general no, the amount of air drawn through unit means it gets the air temperature not any localised warming. Front of house is within permitted de...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar thermal with combi boiler

This is the part I actually used, it has a mixer valve as part of the assembly

4 months ago
Forum
Solar Thermal & Power Diverters
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RE: Hybrid ASHP and gas boiler - operating together

I have a home brew hybrid system (didn't want to scrap a nearly new boiler). Found the best cost wise was is to switch over from ASHP to gas when you ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Solar thermal with combi boiler

ASHP - air source heat pump PDHW - priory demand hot water. So heating the hot water cylinder on priority over heating, but more importantly allows...

4 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Solar thermal with combi boiler

When I had the combi connected as per a combi (now system conversion, ASHP hybrid), it was run as preheat of the cold water prior to entering the comb...

4 months ago
Forum
Solar Thermal & Power Diverters
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