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surcalation

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  1. 4 figures, £6k + VAT for a battery. No idea what TER is? And struggling to work out my ACH. Is there somewhere simple to do it? Maybe my search terms are too broad. Not aiming for a passive house as we don't have the ££££ for that.
  2. We have a choice of two different battery storages. Tesla Powerwall 13.5kW battery unit or LG Chem 10kW battery For example, if we decide you want to go with a 10kWp system then we will almost certainly require an export limitation device (not yet confirmed). SolarEdge has this device but in order for it to work properly we would have to integrate the LG battery into the SolarEdge system. The Tesla Battery works separately to the solar controls so having this device would potentially cause conflict between the SolarEdge controls and the Tesla controls.
  3. Cheers Nick, I have been trying to sift through things on the site via the search engine. SO based on our setup with lots of PV and battery storage how would you tackle things?
  4. what company is that? Might be worth a gander. Currently looking at Midland Renewables, ASCUS and E-ON for our set up
  5. Thanks Peter, currently downloaded the form and now having a look. Naively could i not just have trickle vents and no MVHR?
  6. Cheers for the reply Peter. Was planning on using ASHP for heating but hadn't thought about putting a MVHR in until recently. So maybe with what your saying we should look at UFH heating upstairs too and running both ground floor and first floor via the ASHP?
  7. Hi folks, Currently in the foundation and site preparation stage of a timber frame build. However we can't decide what to do with heating and cooling the house. So far we are having solar pv on house roof and garage roof as they are both SE facing so we will have a 10kw system. We are then going to have 3/4 of the downstairs as UFH and a log burner in the living room. In the bathrooms and en-suite's we are going to have some electric towel rails and then we were going to use an ASHP to make sure the air circulated around the house. So the problem we are having is that there is no heating per say upstairs other than the towel rails in the bathrooms. When we started the timber frame journey the above set up from several timber frame companies said it was fine to do it that way. But now as we get close to booking trades in firms are questioning the lack of heating upstairs. I currently don't have the design SAP as we are having issues get a PSI value for the thermal bridging. Timberframe company don't have it so our architect is trying to sort it. The u-value for our walls is 0.2 if that helps. So should we be looking at an UFH heating for upstairs in the bedrooms? Do we need a MVHR? 01 Elevation layout Architect drawing.pdf
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