GaryW

I already have 2x Nest Thermostats from my last - old, damp and oil fired central heated home. So its a simple use case - I could always ebay them... On the controller being a thermostat in an original install - still, it doesn't vary the flow temp to room temperature - so what benefit does this have?. I will have a read, for sure.

So, Newbie to the heat pump world. Aerona being installed into my new build next Friday. As a middle aged man, this is as exciting as it gets........ Done research - at start, looking to setup with weather compensation on. Will throw my installer setup in the bin and adapt myself. Looking for tips. Intend to setup: 2x Nest Thermostat for general On/Off control on CH - set to 23 - so only turns off when I want for extended period or significant overheat event. Flow temp as low as possible on startup and creep up 1Deg until comfy @20Deg. All pipes are valved, but I intend to only have 2 zones - Up and down. House - Self Build 250m2 UFH - upstairs and down. Heat Loss Calc. 7.1kW Additional stove (6kw) in vaulted exposed living room - hopefully rarely on. Priority DHW - 250L HP tank Volumizer 30L on return. No buffer or LLH. What else? I've several temp probes in the screed, but seems useless in reality - room temp is the master of all. Our schedule is: house empty 08:00-17:30. interested to see how to save energy during this time period.

I'm building in NI currently. PP took 20 months, bats, no less.

Great info.

Kudos Ommm. This is great work. My aerona is being installed end of month, will be trying this over the holiday period. Tieing this into HA with the input of a living room thermostat is a simple solution.

Yes, opentherm added to a heat pump is a no brainer and why has it not been done already? The standard is there, all that needs changed is the flow temp numbers. Anyway, any further info on aerona flow temp changes on ModBus?

This is really interesting, and something I'd like to see more off. Load compensation - lowering and raising based on an air stat in the main living area is the way forward!

I agree, there is none in reality. unless of course you just wanted to bolt this onto a property without worrying about the emitters or insulation. then it will... Running costs isn't important at the point of sale went you liquidate your company in a few years. On my part, it is the new unit - will supersede the pervious gen and moving forward, will be supported for longer, you would think. Any idea what "load compensation" is called on a Samsung heat pump? I've found "water law" for weather - any for direct load modulation?

Excellent Info. Still tempted to buy the 8kW. I've a 6kW stove in the living room that can be lit on Baltic nights. Aware modulation ain't published yet, but it published a flow temp of 15-70 - is that not 5 Deg less than average, points to good modulation?

Thanks for the reply John. Gonna draw a schematic here, for it to be laughed at... It's a simple system yet seem difficult for a experienced plumber to commit to.

When it comes to many factors - Propane (R290?) is the future - RED are making that move today - as well as others, no doubt - even for the regulation alone - on the compressor side, it is more efficient. On the secondary pumps - some people show a pump per manifold block - others don't. I have 2 manifolds - upstairs & downstairs - would 1 primary - 2 secondary pumps - would they not basically annoy each other? Also means I need a buffer - which doesn't seem to be in favour, in modern thinking... My plumber basically says he is unsure... Reassuring.

Very tempted by this unit - at £4.5K is is not a high price for a brand new unit. R32 is not cutting edge, but my house does not need cutting edge - it just needs to work. I cannot seem to find it on this unit - is a primary pump required? normally on a HP install I only seen secondary's? Context: - New Build detached, upstairs downstairs, UFH all round, 250m2 - 238m2 usable. Heat Loss calculated at 7.1kW

Did you have a cost per m2? toying between 200mm or 250mm cavity and cost will swing it ?