BristolBuild2020

Glad to see someone has done something similar, I've taken it a bit further and my MVHR is totally proportionally controlled as the built in control is rubbish! I designed and got some customised Temp/Humidity sensors made up as the ones you could buy at the time were £££, unreliable (had 6 all died) and poor resolution/accuracy. Works to a target vs supply delta (So if the supply air is higher than the extract then it doesn't spin up as that's pointless...). Target is 50% / 60% or 10% / 15% higher than supply for day/night respectively. There is a shower boost detection algorithm (detects a rapid increase in extract humidity) Night limits (to quieten it down) - limits in the integral and proportion max but shower detection still unlimited. An increase in fan speed when people are in by 10% (disabled at night). An increase in fan speed when the supply temperature in relation to the extract temperature (with some conditions) as a 'cooling' mode in summer (it sort-of works...!) 10% to 100% fan speed variability. Gently ramps between day/night mode. Just need a CO/CO2 sensor, which it will in the next house! This is what our last 7 days and 5 years looks like... (easily see showers, cooking, etc!) Very low average fan speeds recently as the supply humidity has been too close to the target humidity.

Hi, Stumbled across the forum whilst looking for something to do with our upcoming house plans and then spent the next two days reviewing what feels like every thread. ICF pros and cons, VAT reclaim, CIL refund process, Architect Briefs, updating my budget spreadsheet based on others very kindly provided examples, three-phase power (Didn't even know I wanted that...) and many things I've already forgotten about. As an aerospace engineer I like to be organised with an eye on the details, so I'm trying to break this project down into manageable chunks as currently it feels like climbing Ben Nevis with 100kg backpack! We'll get there, but its going to be a struggle..! One thing I am still on the lookout for (and I do have the Housebuilders Bible but its missing this) is a detailed checklist of things I should ensure I've looked at. Because currently my biggest concern is not doing something because I didn't know about it...! Cheers.