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Marvinator80
@marvinator80
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Joined: Nov 29, 2022
Last seen: May 19, 2025
Profile Activity
Topics: 9 / Replies: 186
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RE: Hot water issue, never seen this before: Grant Heat Pump and Cylinder

not yet. It did resolve itself for a while yesterday but is back to the same issue now. We have had water pressure issues in the area due to power ...

2 years ago
Forum
Domestic Hot Water & Cylinders
Topic
Hot water issue, never seen this before: Grant Heat Pump and Cylinder
2 years ago
Forum
Domestic Hot Water & Cylinders
Replies: 13
Views: 4654
Reply
RE: Is the Grant controller a thermostat?

we’re mostly underfloor, have already installed bigger upstairs radiators. House is 2016 build and well insulated. whacked up the flow temps. Last n...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

House was 20.5 on average at midnight last night. Outdoor temp was 0. It got colder all night and went down to -8 at its lowest. house is average o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pumps don't work: debunking myths & misconceptions

Here’s a blog from a prominent blogger/journalist in the Scottish on the Scottish political scene. He’s no dummy but this was drivel and he was quickl...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

-3 degrees outside and the entire house is sitting at an average of 20 degrees. Feels very comfortable, particularly the underfloor. this is probab...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

Making that change has really made a difference for me, Mike. But then I had to be patient and stop tinkering. Once I did that it has worked. that a...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

We are the same as well, log burner means that if needed a quarter of the house can be heated by that and the UFC click off so I guess more can be tar...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@allyfish makes sense Ally. Feels good that we are making progress. Thanks for all your help. the gap between my LWT and return is typically 5 degre...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

I decided to stop fretting and tinkering and watching the LWT just leave the new WC settings and see what happened. Lo and behold the radiators are ho...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

@allyfish that totally fair enough Ally,makes sense. the problem with the defrosts though right now is getting the house to temperature when the LWT w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

Now it’s just done a frost cycle at 3.5 degrees outside and not a bit of frost to be seen. Heavens to Murgatroyd!

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 6 / 17
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