ectoplasmosis

Yep, same experience here with fan-assisted radiators and UFH on the ground floor: shaves 6-10C off the internal temps during 35C+ heatwaves. Definitely worth it.

I wonder why, even with the Sentinel X100 inhibitor, that the system has scaled up so much! Did you top up the inhibitor after each fill/top-up?

The orange heating bit represents the circulation pump, external unit and controller power consumption, which is always accounted for under 'heating power consumption', even in cooling mode.

Thanks! How has the water quality been since the addition of the Adey inhibitor? Any bacterial growth/scale?

What made you want to add inhibitor and biocide later, and which products did you use for this?

@MarkyP Thank you for this! Did you use a capping along the top edge of the EWI? If so, would you mind sharing the type, and installation technique?

Would you mind sharing your source of filter material?

Another shot. Difficult to see, but it's a creamy off-white in real life.

I used Lime Green Natural Lime Mortar for our extension below: https://www.lime-green.co.uk/products/lime-mortar/natural-lime-mortar Comes in bags, just add water. Loads of colours; I used 'Chalk'.

EDF FreePhase. We have averaged ~16p/kWh over the last month: 7kW Vaillant ASHP, no solar or battery, maintaining 21.5C indoor temp 24/7, no setback at all. We ignore the 4-7pm peak except for load-shifting the dishwasher & washer/dryer overnight.

Apparently Hitachi's parts, warranty and engineer support is almost non-existent in the UK. This would make it a complete non-starter for me.

These are great, I used them to fix the T&G plywood flooring in my loft. Tiny heads which become almost invisible, and easily removable should you require.

I have a load of these around the house, they work very well. The phone app is very convenient, with graphs over time etc. They come with crappy AAA batteries that last a couple of months; replacing with decent quality alkaline AAAs lasts ~6 months for me.

Your 40C flow design temperature will be met at the outdoor temp design temperature, i.e. depths of winter. All other times, the system will be modulating the flow temp based on the weather compensation curve. If you “always wanted no more than 35”, then you should have conveyed this to your installer and they would have sized the emitters for a 35C design temperature instead.

Would love to know more about your project!