i85: Heat Pumps & Controls

Heat Pumps. Controls. Real-world advice.

I’m a working heating engineer specialising in heat pumps, controls, fault finding and system performance.

On this channel you’ll find practical, no-nonsense videos covering:

• Heat pump settings & controls
• Installation & commissioning
• Fault finding & repairs
• Running costs & efficiency
• Real-world testing
• Vaillant, Mitsubishi, Samsung, NIBE, Grant and other systems
• Advice for both installers and homeowners

No sales pitch. No complicated theory for the sake of it.

Just practical information from someone who actually works on these systems.

Subscribe if you want to understand how your heat pump actually works — and how to get the best from it.


i85: Heat Pumps & Controls

Lots going on in UK energy at the moment, which concerns you most? Some speculation some are happening…

3 days ago |[YT] | 4

i85: Heat Pumps & Controls

Have you ever wondered how efficient your boiler is? Could we make it more efficient? With heat pumps people are obsessed with efficiency but no one really talks about gas boilers…

Well below is a link to a FREE rough guide on how to work out how efficient your condensing boiler is, obviously it’s not going to be 100% accurate but it could help you reduce your running costs

docs.google.com/document/d/1-6CRzpgEQ9F5LbGyqqG5NQ…

2 weeks ago (edited) |[YT] | 7

i85: Heat Pumps & Controls

Looks like plug in DiY solar is coming to the UK! At last we are catching our friends up in Europe!

Will you be installing this? - how hard can it be….

6 months ago |[YT] | 6

i85: Heat Pumps & Controls

You can definitely tell spring is on the way!

My 2kW in-roof system throwing out 10kW by 5pm, pleased about that!
The facts for last year:

Total solar energy produced 2157kW
House consumed 2692kW
Heat pump usage for heating, hot water & cooling 1643kW

If you then consider combining battery storage, off peak tariffs or an EV the savings could be even greater.

7 months ago (edited) |[YT] | 6

i85: Heat Pumps & Controls

What would you like to see more of in 2026?

10 months ago |[YT] | 5

i85: Heat Pumps & Controls

Coming soon… New video guides for the Grant Areona R290

Over the next few days we will be uploading some new how to video guides about the Grant Areona R290 heat pump & smart controls!

Got a request? Drop us a comment below!

1 year ago |[YT] | 5

i85: Heat Pumps & Controls

Follow the link below, I take no credit for this, but some great information

energy-stats.uk/vaillant-arotherm-sweet-spot-hot-w…

1 year ago |[YT] | 6

i85: Heat Pumps & Controls

When your Vaillant heat pump displays this message you have a fault! The most common causes are:

•System pressure being low - should normally be 1.5 bar
•Low flow rate due to debris in the filter

There are video guides to these checks in the “How to guides” playlist or see the comments below for some video guide links!

Both these checks can easily be performed by the end user and not normally require an engineer to attend

1 year ago (edited) |[YT] | 5

i85: Heat Pumps & Controls

New videos launching next week…. #samsung #htq

2 years ago (edited) |[YT] | 6

i85: Heat Pumps & Controls

What are you currently using to heat your house?

2 years ago |[YT] | 4